What size of process piping on the welding used in what way to find which specification

1, if the standard can be downloaded to Baidu or standards network GB50236-2011 "field equipment, industrial pipeline welding engineering construction specification" 2, Chapter 1 pipeline construction drawings reading 1. Design specification requirements, heating branch pipe shall not be less than DN20. 2. Insulation conventional practice - water supply: anti-condensation insulation, hot water : insulation, fire: no insulation, chilled water: even valves need to be insulated, cooling water: according to the design requirements, not required can not be made. General ceiling in the pipeline are required to insulate. Water supply: concealed anti-condensation insulation; open across the foyer, bedroom and living room door must be anti-condensation insulation. Drainage: concealed anti-condensation insulation; open public **** toilet seat on the backwater bend must be done. Pipe wells in addition to fire fighting, sprinkler pipeline piping are to do insulation. 3. galvanized steel pipe connection: "DN100 silk, & gt; DN100 can be welded (need to be anti-corrosion), can be flange welding (need to be galvanized for the second time), a small number of can be wire flange connection. 4. pipeline skin distance from the wall is 25-50mm. 5. heating trunk pipe connected to the riser when the riser when the riser straight line section of 15m with three 90. elbow. 6. 6. construction, drain rather high than low, floor drain rather low than high. 7. elevation regulations: indoor piping is generally in the pipe, outdoor piping drainage for the bottom of the pipe, water supply for the top of the pipe. 8. heater in the should be coaxial with the window. 9. gate valves: switching action, resistance coefficient of 0.5; shut-off valves: regulating the switching action, resistance coefficient of 19. 10. compensator is divided into: natural compensation, square expansion force, elbow, corrugated Compensator, sleeve compensator, spherical expansion, angular expansion. 11. Collector tank: the end of the dry pipe, the diameter of which is 4-6 times the diameter of the end pipe. 12. Expansion tank: pressure stabilization, exhaust, holding expansion water, signaling role. Air pressure tank: pressure stabilization, exhaust. Expansion tank *** five pipes: expansion pipe, circulation pipe, overflow pipe, drain pipe, signal pipe. Collector tank installation position: pipe interface from the collector tank upper 2/3, 1/3 from the lower end. 12. In accordance with the standard atlas, to grasp the heat medium inlet. 13. PP-R pipe can be applied to aluminum-plastic composite pipe or water supply U-PVC piping quota. 14. (1) Rigid waterproofing casing: Ⅰ waterproofing casing, Ⅱ waterproofing casing, Ⅲ waterproofing casing Ⅰ waterproofing casing is applicable to cast iron and non-metallic pipe; Ⅱ waterproofing casing is applicable to steel pipe; Ⅲ waterproofing casing is applicable to cast iron and non-metallic pipe; Ⅲ waterproofing casing is applicable to steel pipe; Ⅲ waterproofing casing is applicable to cast iron and non-metallic pipe. Type waterproofing casing for steel pipe; Ⅲ waterproofing casing for steel pipe buried, the wing ring directly contained in the steel pipe. (2) flexible waterproof casing is generally applicable to pipeline through the wall subject to vibration or have strict waterproof requirements of the building. General pipeline through the outer wall of the pipe plus waterproof casing. Pipes through the pool with flexible waterproof casing. If the outdoor water level is high with flexible waterproof casing, if the outdoor water level is low with rigid waterproof casing.15. General water meter pipe diameter than the pipe diameter of one small.16. Water supply branch pipe where connected to more than two water supply points, the branch pipe are added to the living joints and flanges. If the branch pipe is connected to the water meter except. 17. regulations: washbasin (washbasin) on the edge of the ground 800mm. spout from the upper edge of the washbasin 200mm. mop pool spout from the upper edge of the mop pool 300mm toilet water from the ground 250mm basin water from the ground 450mm 18. riser out of the ground must be added to the valves and live joints. 19. fire hydrant: single bolt DN65 norms: the spigot mouth outward, should not be installed on the door shaft side double bolt DN65 norms: the spigot mouth outward, should not be installed on the door shaft side of the fire hydrant: the spigot mouth outward. Installed in the door shaft side of the double bolts DN65 or DN50 hydrant box thickness "240mm, spigot center from the ground single bolts + self-rescue reel 1.1m20. water meter installation: residential: valves + water meter public **** building: valves + water meter + valves outdoor: valves + water meter + valves + relief valve + damping and so on 21. cleaning port: connected to two and two or more sanitary appliances branch pipe should be added to the cleaning port, if any Floor drain can not be added. Riser inspection port: the lowest and highest floor must be set, every one to two floors set. The length of the trunk pipe through several rooms every 8-12m should be added to the cleanout or inspection port. 22. riser reducer must be used size head, branch pipe can be used to make up for the center, such as water meter reducer. 23. drain pipe elbow tee selection: cross pipe and riser should be used 90 degrees diagonal tee or cross pipe and cross pipe should be used 45 degrees tee or cross riser and drainage pipe (such as out of the house) should be used two 45 degrees elbow or 90 degrees radius greater than 4 times D. The pipe should be used to make up the diameter of the riser. Radius greater than 4 times the D 90-degree elbow 24. water storage bend: P-type - squatting S-type - basin, urinal Chapter II Basic Knowledge I. Water supply project (a) the classification of outdoor water supply system 1. to the ground water as a source of water supply system 2. to groundwater as a source of water supply system (b) the classification of outdoor water supply system (c) the classification of outdoor water supply system (d) the classification of outdoor water supply system Water supply system (B) the form of outdoor water supply system: DC water supply system, circulating water supply system, sequential water supply system (C) indoor water supply system classification: life, production, fire protection (D) the composition of indoor water supply system: the introduction of the pipe, meter, piping, water supply accessories, boosting and storage equipment, indoor fire protection equipment (E) the pressure composition of indoor water supply system: H = H1 + H2 + H3 + H4 H1 = Introduced into the pipe and the most unfavorable loop, the most unfavorable point of the elevation difference H2 = along and local resistance H3 = water table resistance H4 = head (heating circulating pump only to overcome the along and local resistance, head 35-40m) (F) indoor water supply 1. simple water supply 2. set up a water tank for water supply 3. set up a pump for water supply 4. set up a pool, pumps, tanks for water supply 5. zoning water supply mode 6. . pneumatic water supply mode 7. inverter water supply mode (7) indoor water supply system piping pattern: the upper part, the middle part, the lower part (8) indoor water supply laying: open installation, installation (Note: buried wall of galvanized steel pipe should be made corrosion) Second, drainage engineering (a) sewage and classification: life, production, rain and snow water (2) drainage system: combined flow, diversion (3) drainage system components: outdoor, indoor third, heating engineering (1) Classification of heating systems 1. According to the use of different heat media: hot water, steam, hot air 2. According to the circulation power: mechanical, natural 3. According to the supply and return method: single-pipe, double-pipe 4. According to the scope of heating: local, centralized, regional (b) the basic form of hot water heating system 1. Up to the bottom of the return to the dual-pipe 2. Down to the top of the return to the dual-pipe 3. Vertical single-pipe: sequential, spanning, adjustable sequential, inverted flow type 4. Single Dual-pipe system 5. Horizontal single-pipe system 6. zoned heating 7. the same course, different courses (C) the main equipment of the heating system 1. Expansion tank: (including the pump suction port) pressure, exhaust, holding expansion water, signaling role 2. air collection tank 3. Expansion: (high-level use) corrugated expansion, sleeve expansion, natural expansion expansion expansion, four, ventilation and air conditioning (A) air conditioning classified by the air-handling equipment set up points Centralized system: air-conditioning unit directly supplying each room semi-centralized system: water-cooled unit - fresh air unit / fan coiler fully decentralized system: water-cooled unit - fan coiler 2. According to the burden of the indoor load of the media used in the type of points: all-air system, all-water system, air-water system, refrigerant system 3. According to centralized air-conditioning air treatment Source: closed, DC, hybrid 4. According to sub-parts: air conditioning wind system, air conditioning water system, purification air conditioning system, refrigeration equipment system, water-cooled units, cooling towers (B) the main equipment; air conditioning units, fresh air units, fan coils (C) Ventilation System: 1. supply and exhaust air system: human defense, basement, garage (steel plate, fiberglass) 2. smoke exhaust system (steel plate, fiberglass, structural) Dust removal system V. Boiler classification and model representation (a) Classification 1. According to use: industrial, heating, power station, locomotive 2. According to the provision of heat-carrying medium: steam, hot water 3. According to the structure: fire tube, water tube, water-fire tube mixed 4. According to fuel: coal, oil, gas 5. According to the way of combustion: hand-burning and mechanical 6. According to the way of whole package: quick-fit, assembled, bulk (b) Model Representation of Chapter III specification (a) water supply and heating 1. Valve installation should be made before the strength test, from a batch of 10%, if the 10% pass rate of 95% or 99.9% are unqualified. Strength test pressure = nominal pressure * 1.5; tightness test pressure = nominal pressure * 1.12. Installed in the main pipeline to cut off the role of closed-circuit valves should be made one by one for the strength and tightness test. 3. Pipeline stamping elbow OD should be = elbow OD common stamping elbow welded steel pipe seamless stamping elbow seamless steel pipe welded steel pipe DN100 nominal diameter seamless steel pipe Φ100 * 4.5 OD * wall thickness spiral welded pipe D109 * 4.5 OD * wall thickness 4. basement or underground structures should take waterproofing measures when the outer wall of the pipeline through the strict requirements should be made of flexible waterproofing casing.... Rigid waterproof casing: flexible waterproof casing when the general design is not required: design requirements parts; high water table structures; pool 5. pipeline through the expansion joints, settlement joints, seismic joints should be laid to take the following measures: (1) plus expansion joints: water supply, sprinkler plus rubber coupling; frozen water plus stainless steel flexible coupling 6. bracket location is correct, it should be buried flat and firm: (1) equipment, accessories should be set up hangers (2) end, elbow, tee (3) according to the norms of spacing evenly spaced rows (Note: sprinkler end should be made anti-swaying bracket) 7. fixed bracket contact with the pipeline should be secure and tight. 8. sliding bracket, slide drag and slide groove should be left with a gap of 3-5m. 9. no thermal expansion of pipeline hanger boom should be installed vertically, there is a thermal elongation of pipeline hanger boom should be reversed bias toward the direction of thermal expansion. 10. fixed on the Pipe hangers fixed on the building structure does not affect the structural safety. 11. heating, water supply, hot water system riser pipe card setup: (1) floor height "5m, each layer must be installed 1 (2) floor height >5m, each layer shall not be less than 2 (3) pipe card installation height from the ground 1.5-1.8m, 2 pipe card proportionality (4) multi-storey building water supply and drainage pipe diameter greater than 25mm riser can not be added bracket, but the drainage riser Can not be added to the bracket, but the drainage riser should be added to the bottom of the pipe pier. (5) drainage cast iron, water supply galvanized steel pipe riser should be made of brackets to the floor card. 12. expansion and contraction of the pipeline should be added casing, heating, hot water, refrigeration, cooling, condensate through the wall, floor should be added to the casing, water supply, firefighting, sprinkler, drainage is unnecessary to add. 13. water supply pipeline: galvanized steel pipe, "DN100 threaded connection, & gt; DN100 flange or clamp connection; water supply plastic pipe and composite pipe Can use rubber ring interface, bonding, heat fusion, special fittings and flanges; water supply cast iron pipe: cement bonding mouth or rubber ring; copper pipe: special fittings or welding 13. bolts tightened, the protruding nut length of the screw diameter of 1/2, threaded connections should be exposed 2-3 buckles. 14. water supply risers and equipped with more than or equal to the beginning of the 3 distribution point branch pipe should be installed with a removable connector (eg, live joints), but if there are Water meter, flange valves are not required to add. 15. hot and cold water: hot under the cold, hot left and cold right. 16. anti-corrosion treatment: buried drainage cast iron pipe: asphalt corrosion; buried steel pipe (including galvanized steel pipe): three levels of corrosion. 17. tank overflow pipe and drain pipe should be located near the drainage, but shall not be directly connected to the drainage pipe. 18. Vertical pump vibration damping should not be used spring shock absorbers. 19. indoor drainage pipe materials: U - PVC drain pipe, cast iron pipe, PVC drain pipe, cast iron pipe, PVC drain pipe, cast iron pipe, PVC drain pipe and other materials. PVC drainage pipe, cast iron pipe, concrete pipe, composed of washbasin and drinking fountain to *** between the water seal and connect the sanitary ware drainage short pipe available steel pipe. With a toilet branch pipe" DN100, with a toilet tank branch pipe" DN150, more than 3 sanitary ware branch pipe" DN7520. indoor rainwater pipe: water supply cast iron pipe, water supply plastic pipe, galvanized steel pipe, black pipe (internal corrosion) 21. riser inspection port every other floor plus one, the bottom and top with sanitary appliances must be added. 22. drainage risers and trunk pipes (such as household pipe) Should be made through the ball test, ball diameter "drainage pipe diameter of 2 / 3. U-PVC drainage riser should be added expansion joints or tee (with expansion joints) and fire stopping ring (or fire sleeve). Expansion joint spacing is not more than 4 meters. 23. Connecting 2 or more toilets or 3 or more sanitary ware cross-pipe should be equipped with a sweep outlet. (Clearance equipment) 24. Horizontal pipes and horizontal pipes, horizontal pipes and risers should be 45 degree tee or 45 degree tee, 90 degree diagonal tee or 90 degree diagonal tee. Standpipe and drain should be used two 45-degree elbow or radius of curvature of not less than 4 times the diameter of the 90-degree elbow (TY tee). 25. Drainage vent pipe 300mm above the roof, must be greater than the thickness of snow (non-superior roof) Beijing regulations for 600mm. 26. To the outdoor drain pipe through the wall or the foundation must be under the reverse, should be used 45-degree elbow or Tee, and should be set up in the vertical section of the pipe to clean the exit. 27. Indoor hot water is divided into: full circulation, half circulation, no circulation. Hot water piping should be used as much as possible to naturally compensate for thermal expansion and contraction (elbow, square expansion force) 28. water piping should be flushed, the tank is not hydrostatic test only flooding test. Hot water supply and return, water collection tank, water distribution tank, hot water tank should be insulated. Open tank should be made full water test, closed tank should be made water pressure test. 29. sanitary appliances should be installed using pre-embedded bolts or expansion bolts. Sanitary appliances should be full water test and water test. Water supply pipe height from the ground: washbasin 450mm, toilet 250mm, bath 670mm, shower 1150mm, squatting toilet (manual self-closing) 600mm, vertical urinal 1130mm, hanging urinal 1050mm 30. indoor heating pipe: welded steel pipe "DN32 threaded connection, > DN32 welding 31. pipeline slope: steam and water in the same direction Hot water piping, steam piping and condensate piping slope of three-thousandths of a percent, shall not be less than two-thousandths of a percent. Steam and water reverse flow, hot water piping, steam piping slope greater than or equal to five thousandths. Radiator branch pipe slope equal to 1%, the slope should be conducive to drainage and water discharge. 32. balancing valve and regulating valve (system trunk pipe) have the direction of the pressure zone. 33. square compensator should be a whole seamless steel pipe simmering. 34. radiator branch pipe length & gt; 1.5m should be installed when the pipe clamp. 35. up to supply and back to the system of hot water piping reducer should be connected to the top of the flat eccentric connection, the steam trunk piping reducer should be the bottom of the flat eccentric connection. 36. high-temperature piping, hot water piping and condensate piping, steam piping and steam piping, hot water piping should be connected to the bottom of the flat Eccentric connection. 36. high temperature water (110-130. C) plus flange or flange valve. 37. non-high temperature water ceiling in the pipeline is best not to use a loose connector, but a flange valve or screw valve plus a pair of flanges. 38. radiators with a foot piece, 14 pieces of the following 2 legs, 14 pieces of more than 3 legs. 20 pieces of more than pull the strip. 39. filter: pump inlet plus, smaller. 40. decontamination device, the Heating system throughout the building, heat exchange station, boiler room return water pipe decontaminator, larger. 41. decontaminator generally shall be added to the bypass pipe. The main clear pass, perishable equipment should be added bypass accessories. (B) ventilation and air conditioning 1. project selected purchased duct, but also must provide the appropriate product qualification documents or verification of strength and tightness. 2. ventilation duct specifications for the acceptance of the duct, duct outside the diameter or outside the side length shall prevail, the duct to the inner diameter or inside the length of the side shall prevail, the non-rules oval duct refer to the rectangular duct, and to the long diameter of the plane side length and the short diameter of the dimensions of the standard. 3. galvanized steel and various types of steel containing composite Galvanized steel and various types of steel plates containing composite protective layer, should be connected by nibbles or riveted, shall not be used to affect the corrosion resistance of its protective layer of welding connection method. 4. The sealing of the air duct should be connected to the sealing of the plate is given priority to, can be used to sealant embedded seams and other methods of sealing. Sealant performance should be in line with the requirements of the environment, the sealing surface should be located in the positive pressure side of the duct. 5. duct material: ordinary steel, galvanized steel, stainless steel, hard PVC, organic glass fiber reinforced plastic, inorganic glass fiber reinforced plastic (the corresponding number of layers of glass cloth is not less than the specification, and the surface shall not appear anti-halogenation or serious frost). 6. fireproof duct of the body, the frame and fixing materials, sealing materials must be non-combustible materials, its fire resistance level should be in line with the design. Its fire resistance level should be in accordance with the provisions of the design. 7. composite duct cladding materials must be non-combustible materials, the internal Chapter IV Quorum Lecture I. Drainage, heating quota (a) General 1. station-type piping and indoor piping is divided into: the station or machine room of the external wall skin for the session. 2. indoor piping and outdoor piping is divided into: the building's external wall skin 1.5m for the boundary. 3. outdoor piping and municipal piping is divided into: the steel pipe DN150 outdoor, >DN150 municipal; seamless steel pipe "Φ159 outdoor, >Φ159 municipal cast iron "DN250 outdoor, >DN250 municipal 4. operation height: super high coefficient >5m, refers to the operation or equipment installation height from the same level of ground. Base: labor days * ultra-high coefficient 5. high-rise building ultra-high fee: eaves height & gt; 25m, the fee base: labor costs * high-rise building ultra-high fee 6. heating system commissioning costs: unit project labor costs * 14% (excluding heat source costs), of which labor costs accounted for 78% of the commissioning fee. 7. scaffolding fees: unit project labor costs * 2% (b) indoor piping: understanding: pipe pressure, material, Connection method is different 1. Piping room pressure: low-level once the pressure test can be; high-level layered pressure test, single pressure test, system pressure test and hidden works, etc. 2. Low-pressure galvanized steel pipe (wire connection) DN32 within the pipe card to include. 3. Low-pressure galvanized steel pipe (welded) does not include the support bracket, the fittings have been included (finished product: elbow, on-site processing: tee port open system) 4. Low-pressure galvanized steel pipe (flange connection) need to be galvanized for a second time, the flange, the cost is not included 5. Flange, the cost is not included 5. groove connection (clamp connection) for water supply and drainage, fire and gas mechanical or open connection: commonly used in tee fittings: groove connection 6. water supply cast iron pipe: commonly used in buried household pipe (cast iron pipe than the mechanical strength of the steel pipe, corrosion-resistant) 7. drainage cast iron pipe: horizontal connection & gt; 6 toilet or high-rise buildings must be set up auxiliary permeable pipe auxiliary permeable pipe fittings, permeable to its cap Drainage cast iron pipe: rubber flange interface A type; W-type hoop connection 9.Aluminum-plastic composite pipe: brass fittings connection or ferrule connection, threaded connection between the fittings Aluminum-plastic composite pipe and PVC-U water supply plastic pipe already contains pipe fittings, steel-plastic conversion joints installation costs, but does not contain the main material, the content of 1.01 Aluminum-plastic composite pipe DN32 U-PVC drainage plastic pipe fittings have been included: permeable cap, expansion joints, vertical inspection port and toilet connection pipe (squatting toilet) do not have to be calculated separately; fire-resistant ring or fire casing need to be provided separately. 11.PPR pipe: wire connection implementation of the galvanized steel pipe subheading; adhesive implementation of the UPVC water supply plastic pipe; heat fusion welding implementation of the eighth chapter of the gas piping PE pipe electric Heat fusion. (C) the budget price 1. materials budget price has three components: supply price, storage costs, procurement costs of which the supply price has the following components: outbound freight, packaging costs, supply and marketing department handling fees, out of the field. 2. cost information on the price of the price for the price of transported to the construction site, but does not include 2% of the storage costs. 3. the preparation of a fixed rate of the cost of machinery: depreciation (in the scope of the provisions of the use of the recovery of its original cost) ) overhaul costs (overhaul costs, maintenance costs) 4. project cost includes: direct costs, corporate overhead (after deducting the project department medical and pension), profits and taxes. The direct costs include: labor, materials, machinery and site management costs (of which site management costs include temporary facilities and site funds). (D) outdoor piping 1. old piping and new piping joints: heat source set of Section 12 outdoor heat source pipe bumper; water supply pipe set of Section 13 outdoor water supply cast iron pipe plus tee water source joints. 2. sand filling: calculated according to the design requirements only, not necessarily full fill is applicable to the direct-buried thermal insulation pipe and directly buried pipe. (E) station type pipe 1. coil welded pipe fittings: finished sets of low-pressure coil welded steel pipe fittings installed to make up for the main material; field production and processing of sets of low-pressure coil welded steel pipe fittings installed, do not need to make up for the main material. 2. field processing of a variety of pipe fittings, including in the main pipe dug eye to connect the tee, wrestling reducer, etc., are the implementation of the corresponding subheading of the fittings connected to the fittings will no longer be charged for the main pipe fittings, if the dug eye tee pipe is smaller than the main pipe diameter of 1/2, the pipe fitting specifications according to the branch pipe diameter. If the branch pipe diameter is less than 1/2 of the main diameter, the pipe fittings specifications according to the main diameter of the pipe to take; if the branch pipe diameter is greater than 1/2 of the main diameter, the pipe fittings specifications according to the main pipe diameter applied. (F) valves and flanges 1. pressure-reducing valve group composition: (VII) sanitary ware 1. squatting toilet: if the UPVC drain, squatting toilet connecting pipe is not counted alone, included in the joint parts. 2. bidet: if the back of the drain, a single implementation of a bidet soft joint installation (between the pipe and the commode). 3. urinal sinks: flushing tank production to implement the ninth chapter of the production of water tanks. Flushing tank bracket implementation of Chapter XIII equipment bracket production. 4. civil mop pool: floor installation of the implementation of the nozzle and floor drain installation; desktop implementation of the nozzle and the drain plug with a water storage elbow. Vanity implementation of water spout and drain plug without water storage bend; multi-faucet sink implementation of multiple water spout and drain plug with water storage bend, if there is a floor drain can be implemented water spout, drain plug without water storage bend and floor drain. 5. washing machine interface implementation of the installation of the water spout, replacement of the main material: the washing machine faucet. 6. multi-functional floor drains, bathtub drain storage box (cabinet) installation of the implementation of the corresponding subheading of the installation of three drains. 7. horizontal sweeping outlet Implementation of sweeping outlet (connecting more than two toilets or more than three water appliances must be set up sweeping outlet) 8. riser inspection port, vent cap and expansion joints contained in the content of the fittings, do not have to be calculated separately. 9. suspended isolation of the device tow (bracket) shall be calculated separately. 12. equipment towing oil painting needs to be implemented in addition to the metal support painting. (H) heating appliances 1 cast iron radiators: generally need to site group, not divided into open installation are implemented in the same subheading, floor-mounted installation of each group with a foot piece and not with a foot piece. Hanging installation is not divided, only in the piece. 2. floor mounted radiators: 14 pieces or less, 2 with a foot piece, 15-20 pieces, 3 with a foot piece. 3. column cast iron radiator installation of more than 20 pieces of each group, the need to pull the strip, pulling the strip cost is calculated separately with φ6 round steel, the implementation of the production and installation of metal brackets subheading. 4. the interface sealing materials listed in the quota are based on the finished product of the preparation of the rubber gasket, if inconsistent with design, no adjustment. 5. steel radiator: generally need to field grouping, not divided into open installation are implemented the same subheading, each group has a foot piece and without foot piece. 5. steel closed radiator: generally refers to finished products, mostly hanging, unit: piece refers to the group, the quota includes tow hook installation, if the bracket finished products, the main material does not include tow hooks, tow hooks to make up for the price of its separate. The fixed amount has included the air release door silk plug, if installed manual air release valve another manual air release valve installation. 6. high-frequency welded finned-tube radiator: the fixed amount includes the installation cost of the shield, but does not include its own value. 7. multi-column steel tube radiator: can be used for hot water or steam, such as Sende radiator. 8. radiant convector radiator installation, not divided into hanging or floor-mounted installation, the implementation of the same quota, floor-mounted standoffs according to with the main material to bring the preparation. 9. Light pipe radiators: A and B-type production and installation, the quota has been included in the materials used in the joint pipe, shall not be calculated separately.10. Collector and automatic exhaust valve: used for the highest point of the hot water heating system, the valves and bleeder pipe on the separate calculations.11. Heater installation: does not include bracket production and installation, and separately Chapter XIII, according to the equipment bracket production and installation.12. Low-temperature radiant floor heating: According to the laying method of sub-specification calculated in meters. Generally can not have fittings, the quota does not contain insulation network, civil construction calculations. The quota has included the ground pouring with the construction. With aluminum-plastic composite pipe, polybutylene pipe, polypropylene pipe, polyethylene pipe and other pipes as floor heating pipes, are implemented in this project. 13. Heating system commissioning costs are calculated separately into the fee. (viii) Fire-fighting system 1. Location of pressure-reducing orifice plate: connecting with live joint before fire hydrant, connecting with flange before fire hydrant, and connecting with receiver after fire hydrant. Flange installation is calculated separately. 2. outdoor underground hydrant wells to implement the first book of civil construction quotas. 3. gas drive device piping installation, the number of ferrule connectors according to the design drawings of the amount of separate calculations. 4. storage device seat bracket is calculated separately, the implementation of the corresponding subheading of Chapter XIII equipment bracket. 5. storage device installation, the quota has been included in the fire extinguishing agent storage containers, system components, safety valves, and other storage devices And valve drive device installation and nitrogen pressurization. Nitrogen dioxide storage device installation does not require gas pressurization, the implementation of the quota should be deducted from the pure nitrogen, other unchanged. (Ix) gas piping 1. polyethylene pipe: PE pipe, pipe fittings are calculated separately. Connection: small diameter electrofusion; large diameter heat fusion. 2. polyethylene pipe fittings connection, applicable to polyethylene tee, elbow, pipe plug, reducer, sleeve and other fittings connection. 3. steel-plastic conversion joints: regardless of silk, welding, flange connection are implemented in the same subheading; if the flange is connected, the flange itself value of the other, the screw bolt according to the design drawings of the dosage and 3% of the rate of loss calculations. 4. gas pipeline φ PE pipe within 315 according to the eighth chapter of the gas pipeline, gas wells according to the first book of construction projects for the fee; φ315 PE pipe for supplementary items, gas wells for municipal pipeline for the fee. (X) low-pressure containers with 1. assembled water tanks, including the production and installation costs of steel chassis, other equipment brackets are calculated separately. 2. inverter water supply device: air pressure tanks in the pressure controller comes with the equipment, inverter pumps in the flexible joints if the equipment supporting the price of the main material, otherwise calculated separately. 3. need to be made for the thermal insulation of equipment to implement the equipment thermal insulation quota subheading. 4. grouting between the equipment and the foundation generally refers to the secondary grouting. 5. Ground bolt production and grouting: if the equipment comes with ground bolts and grouting; if the equipment does not come with the equipment ground bolt production and grouting. 6. off-site transportation: generally used in conjunction with the production of water tanks. If the finished product installation to include the cost. (XI) boiler 1. If the gas boiler, should be cooked and flood furnace with light fuel oil converted to gas. (XII) pumps and vibration damping 1. If the pump is not equipped with ground bolts, another implementation of the ninth chapter of the ground screw bolt production and installation. 2. vibration damping connecting plate (XIII) casing and support hangers 1. process: pre-prepared holes prefabricated casing An casing plugging holes section of steel anti-corrosion prefabricated bracket pipe anti-corrosion prefabricated pipe section 2. support hangers calculation, unit 100kg, applying the 96 years of the proposed budget quota amount of section of steel. 3. 13-79 general pipe racks are applicable to the General pipeline; 13-80 wood mat pipe rack is applicable to air-conditioning water system, excluding the price of wood mat chrome, purchased by m2 (about 1900 yuan / m3); 13-81 spring-type pipe rack is applicable to the design of special instructions for the support of the hanger, such as vertical displacement of the movable bracket, the fixed amount does not include the spring of the price of chrome. Drainage UPVC pipe card is a finished product to buy, should be hanger type fixed card folded in the main material. 4. casing: general filler casing without filler steel casing: the implementation of welded steel pipe installation, calculated in m than the diameter of the pipe is larger than the No. 2 waterproofing casing: rigid, flexible fire stopping ring: UPVC drain 5. water and sewage pipes through the wall with filler-free casing, drainage pipe through the floor without casing; heating pipes to do the general filler casing, gas piping Through the floor with asphalt, set with general packing casing (XIV) pipeline hydraulic test and flaw detection 1. pipeline hydraulic test: the pipeline itself has contained a test pressure, construction design if the need for a second test pressure and then the implementation of the hydraulic test quota, the test pressure with liquid refers to liquids other than water if water can be disregarded, pressure gauges and valves to amortization of materials into the pressure gauge 0.1, the valve 0.2. 2. pipeline pneumatic test: the gas transmission Pipeline need to be strong pressure test, outside the pipeline need to be strong pressure air pressure test. 3. Pipeline leakage test: applies to the pipeline conveying highly toxic, poisonous and combustible media. Such as the indoor part of the gas pipeline. 4. pipeline vacuum test: air-conditioning units, water tanks, such as copper pipes need to do the vacuum test. 5. water flushing: all media for water pipeline need to be water flushing, heating pipeline liquid need to be water flushing, drainage pipes do not do. 6. pipeline disinfection and rinsing: for domestic cold water, hot water and drinking water, such as buried water supply pipeline (potable water): pressurization, flushing, disinfection of buried fire fighting pipelines: pressure, flushing, disinfection. 7. compressed air compressed air compressed air compression test, flushing, disinfection of fire-fighting pipelines: pressure, flushing, disinfection of fire-fighting pipelines. 7. compressed air blowing: outdoor natural gas pipeline after the hydraulic test need to be blown 8. downstream ball test: used for sewerage pipes, water closure test has been included in the drainage pipe installation quota. Drainage through the ball test to be used separately, generally refers to the drainage trunk pipe and riser (branch pipe do not have to do, but if it is a toilet, squatting and trunk pipe connection parts need to do, that is, the pipeline flow of lumpy objects to be done through the ball. 9. Pipeline pickling, alkali washing: for process piping 10. degreasing test: oxygen pipeline 11. flaw detection: such as municipal pipelines (XV) paint insulation 1. cast iron radiator paint amount according to 0.28m2/piece. 2. 2. insulation towing tray production and installation: the occurrence of parts of the condensate riser; hook nails: cross dry pipe pipe diameter is larger to do hook nails; galvanized steel insulation box used in the valves, flange insulation. 3. direct burial insulation pipe joints: for outdoor direct burial pipe two, ventilation, air conditioning quota (a) ventilation ducts and components: power system: supply fan, return fan; air treatment system; air delivery system: muffler, balance valve; Air distribution system: louvers, exhaust vents, air supply 1. Ventilation duct: thin steel plate, glass fiber reinforced plastic and composite 2. Measurement principles: no deduction of elbows, tees, reducers; deduction of valve components special: elbow deflector blade, measurement without deduction applying the production of the assembly quota; muffler elbow deduction, applying the installation of muffler elbows. 3. Fire damper, muffler, static pressure box and muffler elbows have been included in the installation of the support bracket. 4. When the When the muffler is installed continuously, 2 sections of muffler are counted. 5. The area of static pressure box is counted according to 6 surfaces without deducting the openings. 6. Concentric bends of rectangular ducts must be set up with deflector vanes when the length of big side (horizontal side) is 500mm. 7. The location of inspection holes is set up: a head and a tail one in the case of long ducts; such as comfort air conditioning may not be set up; it is necessary to be set up for air conditioning with constant temperature and humidity; and the high and medium efficiency filters need to be set up with inspection holes. 8. Determination of the hole: dry pipe and branch pipe at the entrance and exit of the set 9. system tightness: according to the need to test the area of the duct to m2 calculation.