1) Article 3.8.15, pump foundation should not be less than 0.10m above the ground;
2) Article 3.8.6, pump suction trumpet to the bottom of the pool net distance should not be less than 0.10m;
3) Article 5.4.19, the expansion pipe outlet from the water surface of the water tank access to a height of not less than 0.10m;
4) Plastic regulations, Article 4.4.6, plastic piping across the floor roof with a casing, casing higher than the surface of the roof. 4.4.6, plastic piping through the floor roof casing, casing not less than 0.10m above the ground, roof;
5)Plastic regulation 4.4.7, plastic piping and other metal piping laid in parallel, there should be a protection distance of not less than 0.10m;
6)Plastic regulation 4.1.7, overhead plastic water supply pipe overhead clearance should not be less than 0.10m;
6)Plastic regulation 4.1.7, overhead plastic water supply pipe top clearance should not be less than 0.10 m;
7)Swimming regulations Article 4.4.3, swimming pools, aquatic recreational pools of water tanks, replenishment pipe should be higher than the highest level of water in the box 0.10m;
8)Swimming regulations Article 5.6.5, swimming pools through the balancing pool, equalization of pools of supplemental water outlet is higher than the overflow level of the tanks 0.10m.
2.What occasions appear to be a spacing or height of 0.15m Requirements?
1) Article 3.2.12, domestic drinking water tank inlet pipe at the lowest point above the edge of the overflow may not be greater than 0.15m;
2) Article 3.5.15, buried water supply pipe and drain cross-buried in the building should not be less than the minimum net distance of 0.15m;
3) Article 8.1.4 of the Chinese regulations, building water piping and water supply pipes, drainpipe When cross-buried, the minimum spacing should not be less than 0.15m;
4) Article 3.5.3 of the plastic regulations, the minimum depth of cover on the top of the outdoor water supply pipe shall not be less than 0.15m below the frost line;
5) Article 4.3.2, the depth of burial of community sewage pipelines shall not be higher than 0.15m above the frost line;
6) Article 4.3.14, water storage tanks for beverages, shall not be less than 0.15m above the frost line. Article 4.3.14, the minimum air gap between the indirect drain of the beverage storage tank shall not be less than 0.15m;
7) Article 4.5.13, the distance between the cleanout at the beginning of the drainage cross pipe and the perpendicular wall to its end shall not be less than 0.15m;
8) Article 4.5.14, the riser pipe is provided with an inspection port, which shall be 0.15m above the edge of sanitary appliances at that level;
9 )Article 4.6.9, appliance ventilation pipe, ring ventilation pipe, special ventilation pipe, H pipe and ventilation risers should be located in the sanitary appliances above the upper edge of not less than 0.15m above the connection with the ventilation risers;
10)Article 13.1.1, foot dip disinfection pool disinfectant effective water depth shall not be less than 0.15m.
3.What occasions appear to be a 0.20m Spacing or height requirements?
1) Article 3.5.13, plastic feed pipe from the edge of the gas water heater should not be less than 0.20m;
2) Plastic regulation 2.1.10, plastic feed pipe from the heating pipeline clearance shall not be less than 0.20m;:
3) Article 3.8.15, the pump room pipe bottom from the ground or the bottom of the trench distance, when DN ≤ 150mm When, should not be less than 0.20m;
4) Article 4.8.3, cooling pool pressurized high-temperature effluent such as no two evaporation, the mouth of the pipe should be inserted into the water at a depth of 0.20m or more;
5) Article 5.4.16, the highest point of the upper attachment of the water heater to the lowest point of the building structure of the net distance shall not be less than 0.20m.
4.What occasions appear to be 0.25m spacing or height requirements?
1) Article 3.8.15, the pump room pipeline pipe bottom from the ground or trench bottom distance, when DN ≥ 200mm, should not be less than 0.25m.
5. What occasions appear 0.30m spacing or height requirements?
1) Article 3.2.12 note, when the maximum water level of domestic drinking water storage tank than the building water supply pipe into the bottom of the pipe is 0.30m lower, the inlet pipe is not required to be higher than the edge of the overflow;
2) Article 3.5.3, laying in the outdoor integrated pipe gallery (ditch), the water supply pipe and a variety of piping between the net distance should not be less than 0.30m;
3) Article 3.8.7, the water supply pipe and various pipelines should not be less than 0.25m. 3.8.7, multiple pumps suction mains in the pool of the diversion pipe should be set down the flare, flare below the minimum water level in the pool should not be less than 0.30m;
4) Article 3.3.8, self-priming pumps calculate the permissible height of the installation, there should be a safety margin of not less than 0.30m;
5) Article 4.3.2, domestic sewage connected to the depth of the soil overlay pipe should not be less than 0.30m;
6) Article 4.3.18, when the fall difference at the drain connection well is greater than 0.3m, not subject to the deflection angle;
7) Article 4.6.10, the ventilation pipe shall not be less than 0.30m above the roof surface;
8) Article 4.6.15, the average temperature of the coldest local month is below -13℃ in the area of the Indoor flat roof or ceiling below 0.3m, the extension of the ceiling vent pipe enlarged by one level;
9) Platoon regulations, Article 4.1.14, pipe diameter greater than or equal to 110mm cross-branching pipe connected to the dark establishment of the pipe, wall penetration should be set up through the parts of the fire stopping ring or the length of the fire casing of not less than 0.3m.
6. What occasions appear 0.40m spacing or height requirements?
1) Article 3.5.13, open plastic water supply riser from the edge of the stove shall not be less than 0.40m;
2) Article 4.3.3, plastic drainage riser from the edge of the domestic stove, the net distance shall not be less than 0.40m;
3) Article 4.5.3, the start of the drain pipe to set up a plug instead of a cleanout, the plug and the wall should be no less than 0.40m distance.
7. What occasions appear 0.50m spacing or height requirements?
1) Article 3.5.15, the minimum distance between the living water supply pipe and drainage pipe buried parallel laying in the building should not be less than 0.50m;
2) Article 8.1.14 of the Chinese rules, the building of the water pipeline and the living water supply pipe, the minimum distance between the drainage pipe buried parallel laying should not be less than 0.50m;
3) Article 3.5.10, water supply pipe from the toilet and urinal, the minimum distance of 0.40m. Riser from the end of the toilet, urinal shall not be less than 0.50m;
4) Article 3.8.6, self-irrigation pump suction flare is below the lowest water level in the pool of 0.50m;
5) Article 5.6.5, downward upward to the hot water system circulating pipeline return riser can be connected to the main distribution pipe in the highest water distribution point below 0.50m;
6) Platoon rule 3.1.21, in the coldest month average temperature is lower than -13 ℃ in the region, the riser should still be in the highest floor from the ceiling 0.50m at the inspection port;
7) Platoon rule 4.1.14, riser pipe diameter greater than or equal to 110mm and open, the length of the floor at the installation of a length of not less than 0.50m of the fire-resistant casing;
8) Platoon rule 4.1.14, cross-stem pipe crossing the fire-resistant pipe;
8) Platoon rule 4.1.14, the cross-stem pipe crossing the fire-resistant pipe. Article 14, cross the trunk pipe through the fire partition partition wall, the pipe through the wall on both sides should be set up on both sides of the fire stopping ring or length of not less than 0.50m fire casing.
8. What occasions appear 0.60m spacing or height requirements?
1) Article 3.5.19, into the pipeline shaft, maintenance personnel should not be less than 0.60m net width of the working channel;
2) Article 3.7.3, pool (box) equipped with piping on the side of the pipeline, the pipeline wall and the wall of the building body between the channel width should not be less than 0.60m;
3) Article 4.3.12, the cross-branch pipe access The horizontal pipeline vertical turn pipe section, the connection point should be not less than 0.60m from the turn below;
4) Article 4.6.10, in the vent pipe within 4m around the windows and doors, the vent pipe should be higher than the top of the window 0.60m, or to the side of the window and door;
5) Article 4.8.2, the grease trap outlet pipe bottom to the bottom of the pool depth should not be less than 0.60m;
6) Article 4.8.2, grease trap outlet pipe bottom to the bottom of the pool depth should not be less than 0.60m;
8) Article 4.8.2, grease trap outlet pipe bottom to the pool depth should not be less than 0.60m.
6)Swimming regulation 11.4.3, a few children's swimming pool depth should be 0.60m.
9.What occasions appear 0.70m spacing or height requirements?
1) Article 3.5.3, outdoor water supply pipes under the carriageway depth of overburden should not be less than 0.70m;
2) Article 4.3.2, the district arterial roads and community group roads under the drainage pipe depth of overburden should not be less than 0.70m;
3) Article 3.7.3, the pool (box) outside the wall of the pipeline without the side of the wall of the net distance between the wall and should not be less than 0.70m;
3) Article 3.7.3, pool (box) outside the wall without the pipe should not be less than 0.70m;
4) Article 3.8.16, the pump room maintenance site size should be determined by the pump or motor dimensions around a channel of not less than 0.70m;
5) Article 5.4.16, volumetric, infiltration-type volumetric, semi-volumetric water heater should be on the side of the channel with a clear distance of not less than 0.70m;
6) travel regulation Article 16.2.1, swimming pool filter and the net distance from the wall should not be less than 0.70m.
10.What occasions appear 0.80m spacing or height requirements?
1) Article 3.7.3, the pool (box) of the top plate to the bottom of the slab of the building body above the clearance is not less than 0.80m;
2) Article 3.7.5, high level water tank box bottom and the ground panel clearance, when there is piping should not be less than 0.80m;
3) Article 5.4.17, the upper most components of the hot water heater unit (except for the chimney) to the bottom of the beam of the roof of the room. Machine room roof beam bottom clear distance should not be less than 0.80m;
4)Swimming regulations, Article 16.2.1, swimming pool filters and filters between the net distance should not be less than 0.80m;
5)Swimming regulations, Article 16.2.1, swimming pool filters at the top of the lowest point of the structure of the building net distance shall not be less than 0.80m.
11.What occasions appear 1.0m Spacing or height requirements?
1) Article 3.7.3, domestic drinking water pool (box) installation piping on the side of the building structure and the net distance from the wall of the body should not be less than 1.0m;
2) Article 3.9.26, the depth of water in the adult pool is appropriate for the 1.0m;
3) Article 3.10.5, the cooling tower maintenance access should not be less than 1.0m;
4 )
4) Article 4.5.14, drainage risers on the installation of inspection ports, should be 1.0m above the ground (floor) surface;
5) Article 4.9.24, pressure flow roof rainwater drainage suspension pipe and the rain bucket outlet height difference should be greater than 1.0m;
6) Article 5.4.17, hot water units on both sides of the channel width should be the width of the unit, and should not be less than 1.0m.
12. The following pressure values are suitable for which parts?
0.01MPa residential entry pipe on the water meter head loss value of the pipeline filter local head loss value)
0.03MPa building or community introduction pipe on the water meter only through the domestic water use water loss value of the working conditions of the use of water purification Water spigot minimum working pressure of 0.03MPa
0.02 ~ 0.05 MPa swimming pool circulating water into the Pool outflow head
0.05MPa building or community introduction of water meters on the pipe through the fire water loss under the conditions
0.025 ~ 0.04 MPa backflow preventer head loss value
0.06MPa swimming pool pressure filter media for quartz sand anthracite and zeolite, head loss of not 0.06MPa
0.10MPa residential community life and fire fighting pipeline should be superimposed on the water flow of life in the area of a fire in the maximum fire flow calibration pipeline end outdoor hydrant water pressure from the ground, shall not be lower than 0.10MPa. Absolute pressure for the value of the working pressure plus 0.10MPa
0.15MPa rainwater pressure water drainage plastic pipe ring deformation of the external pressure should be greater than 0.15MPa $
0.30MPa adjustable pressure reducing valve valve and valve, the requirements of the environment quiet place should not be greater than 0.30MPa
0.90MPa water distribution parts of the test pressure, generally according to the working pressure of the 1.5 times 0.6MPa × 1.5 = 0.9MPa
1.0MPa manned explosion-proof valve rated The rated working pressure of explosion-proof valves is not less than 1.0MPa
13. The following percentage of pressure value for which parts:
1% ~ 2% building air conditioning, refrigeration equipment make-up water, generally determined by the amount of water circulating in the cooling water of 1% to 2%
3% ~ 5% hot water distribution piping of heat loss, generally using the design of the hourly heat loss of 3% to 5% to determine the design of
10% ~ 15% residential water distribution piping of heat loss, generally using the design hourly heat consumption of 3% to 5% to determine p>10% ~ 15% residential district network leakage and unforeseen water and the sum of the maximum daily water consumption can be 10% ~ 15%
15% DC water supply system or DC purification water supply system for swimming pools and water swimming pools hourly replenishment shall not be less than 15% of the volume of pool water
15% ~ 20% of the residential community pressurized pumping station reservoirs in the regulation of water for domestic use (When the information is insufficient, according to the maximum daily water consumption of 15% ~ 20%)
20% of the swimming pool water surface, bottom, walls, piping and equipment, such as heat loss, should be based on the surface of the swimming pool water evaporation loss of 20% of the heat loss to determine
20% ~ 25% of the effective volume of domestic water storage tanks in the building, the information is insufficient, it should be based on the highest daily consumption of 20% ~ 25% of the water. Determine. Swimming pool circulating water partially heated, heated circulating water is not less than 20% of all circulating water ~ 25%
25% ~ 35% continuous operation, water storage tank (box) of the regulating volume can be 25% of the daily water consumption of water ~ 35%
35% ~ 50% continuous operation, water regulating pool (box) of the regulating volume can be 35% ~ 50% of the daily water treatment
35% ~ 50% continuous operation, water regulating pool (box) of the regulating volume can be 35% ~ 50%
35% ~ 50% of the daily treatment of water. 35% ～ 50%
The water pump linkage lifting water intake tank domestic water regulating volume should not be less than 50% of the maximum hourly water consumption
50% The use of water pumps - tanks of joint water supply, the regulating volume of the tank shall not be less than 50% of the maximum hourly water consumption in the water system. Hot water supply of water heaters a maintenance, the remaining units of the total heating capacity shall not be less than 50% of the design hourly heat consumption
70% of the residential area ring water supply network and municipal water supply pipe connection should not be less than two, when one of them fails, the rest of the connecting pipe should be able to pass through not less than 70% of the flow rate of 70% to 100%. Residential, hotels, hospitals, nursing homes wards, bathrooms, bathtubs or showers can be 70% ~ 100 %, other appliances do not count
80% ~ 90% Proportional pressure-reducing valves of the head loss, the valve after the dynamic water pressure is appropriate to press the valve after the static water pressure 80% ~ 90%
85% ~ 95% of the residential community life drainage system, the water discharge quota is the corresponding domestic water supply system Water consumption quota of 85% to 95%
100% by the city water supply network at night directly into the high water tank of domestic water regulating volume of 100% of the maximum daily water consumption of industrial enterprises living room, public **** bathroom, schools, theaters, stadiums (museums) and other bathrooms in the shower and washbasin are based on 100% of the calculation
Above by the Zhongda Consulting collection
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