Question 2: What is the difference between the end water test valve and the end water test device? End water test valve is a copper gate valve.
The end of the water test device is a set, with a pressure gauge
Question 3: fire closed sprinkler head sprinkler system to do the budget to calculate what items, respectively, apply what quotas? Set what quota, depending on your province's construction quota number. Each province is not necessarily the same.
Sprinkler system to calculate the following items: 1, the number of sprinkler head (to be divided into upper spray, lower spray, side spray, hidden spray nozzle, etc.); 2, each type of pipeline and the corresponding paint; 3, pipe supports; 4 types of valves (signal valve, butterfly valves, water flow indicator, end of the water test, check valves, gate valves, relief valves, wet alarm valves, etc.); 5 pump couplings; 6, through the layer of casing, rigid waterproof casing, etc.; 7, water pumps Casing, etc.; 7, pumps and ancillary accessories installation; 8, commissioning
Question 4: Sprinkler piping, galvanized steel pipe DN150 groove connection, groove gate valve on the pipeline, should be applied to what quota? We have a supplementary quota in Jiangsu
No that set of eight books, labor, machinery remains unchanged, the material is converted.
Question 5: Indoor fire hydrant are required to calculate what, respectively, apply what quotas apply what quotas, depending on your province's construction quota number. Each province is not necessarily the same.
Sprinkler system to calculate the following items: 1, the number of sprinkler head (to be divided into the upper spray, lower spray, side spray, hidden spray nozzle, etc.); 2, all types of piping and the corresponding paint; 3, pipe supports; 4, all types of valves (signal valve, butterfly valves, water flow indicator, end of the water test, check valves, gate valves, relief valves, wet alarm valves, etc.); 5 pump couplings; 6, through the layer of sleeve, rigid Waterproof casing, etc.; 7, pumps and ancillary accessories installation; 8, commissioning
Problem six: fire piping fittings with a separate re-calculation, the quota whether it contains In general: threaded connections do not need to count the fittings, in the groove connection to count the fittings fire hydrant system threaded connections do not need to calculate the fittings of fire protection class you set of fire protection engineering water fire fighting pipeline placement, the number of auxiliary materials according to the design of the calculations Look at the following quota explanation,
Henan 08 new list
C.7.1 water fire extinguishing system (030701) Description I. This chapter of the quota applies to the industry and civil buildings (structures) set up sprinkler system piping, all kinds of components, fire hydrants, pneumatic tanks of the placement. Second, the boundaries of the division: 1. Indoor and outdoor boundaries: 1.5m to the boundary of the outer wall of the building skin, the entrance to the valve valve for the boundary. 2. In high-rise buildings located in the fire pump room pipeline and the chapter boundaries to the pump room for the boundary of the outer wall skin. Third, the pipe placement quota: 1. Including a one-time hydrostatic test within the process. 2. galvanized steel pipe flange connection quota, pipe fittings are based on products, elbow ends are welded flange according to the short pipe welding considerations, the quota includes straight pipe, pipe fittings, flanges, etc. All the content of the placement process, but the number of pipe fittings, flanges and bolts of the main material should be calculated according to the design of the provisions of a separate. 3. The quota also applies to the placement of galvanized seamless steel pipe. Fourth, the nozzle, alarm devices and water flow indicator placement quota are based on the pipe network system pressure test, flushing after the placement of qualified considerations, the quota has been included in the silk plug, temporary short pipe placement, removal and amortization. V. Other alarm devices applicable to rain, wet and dry and pre-action alarm devices. Sixth, temperature-sensitive water curtain device placement quota has been included in the water supply tee to the nozzle, the valve between the pipeline, fittings, valves, nozzles and other all the content of the placement, but the number of pipe materials according to the design of the central length of the pipeline, plus the loss of calculation; the number of nozzles according to the design of the number of calculation of the loss of another. Seventh, the placement of the collector plate: when there are holes and loopholes above the elevated warehouse layered plate, the collector plate should be set up above the nozzle. Eight, compartmentalized pneumatic water tank placement quota in the ground bolts according to the equipment with the consideration of the quota, including the guidance of the second grouting with labor, but the second grouting with a separate calculation. Nine, the pipe network flushing quota is considered according to the water flushing, if the acceptance of water pressure pneumatic flushing method, according to the construction program can be calculated separately. The quota is only applicable to automatic sprinkler system. Ten, this chapter does not include the following labor content: 1. valves, flange placement, various casing system security, pump room piping placement and piping system strength test, tightness test. 2. fire hydrant piping, outdoor water piping placement and water tank system. 3. All kinds of fire pumps, pressure stabilizing pump placement and equipment, such as secondary grouting. 4 all kinds of instrumentation and placement of electrical signals with the valve, water flow indicator, pressure switch wiring, school line and single debugging. 5. All kinds of equipment bracket system installation. 6. Piping, equipment, flange welds rust brush oil. 7. System commissioning. XI, other relevant provisions: 1. set up in the pipeline, pipe corridor pipeline, the quota of labor multiplied by the factor of 1.30. 2. the main structure for the site casting to accept the construction of steel mold engineering: inside and outside of the quota of labor multiplied by the factor of 1.05, inside the pouring outside of the quota of masonry multiplied by the factor of 1.03. engineering volume calculation rules a. Pipeline placement according to the design of the center of the length of the pipe, in units of 10m, without deducting valves, fittings and all kinds of equipment support system. The length of valves, pipe fittings and various components is not deducted. The quantity of main material shall be calculated according to the quota, and the content of pipe fittings is shown in Table 1. Table 1 Content table of pipe fittings of galvanized steel pipe (threaded connection) Unit: 10m ┏ ━━━ │━━━━━━ │━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ┃ │ Item │ Name │ Nominal Diameter (within) ┃ │ ├￥─────┬╝ ────┬╝ ───── ┬─────┬─────┬────┬─────┃ │ │ 25 │ 32 │ 40 ...... >>
Question 7: In the sprinkler system, there are gate valves, globe valves, ball valves, signal butterfly valves, ordinary butterfly valves, and water flow indicators. What is the specific location of the installation? Which god details Gate valve is mainly forever pump room, globe valve is mostly used in the end of the water test device, the ball valve you said is a float valve, right. It is used for water tanks, signal butterfly valve installed in the inlet of no fire partition and water flow year indicator supporting the use of ordinary butterfly valve sprinkler rarely used, it is mainly used for fire hydrant system.
Question 8: fire system end of the water test discharge test, found that the pump can not automatically start, the cause of the failure may be what? Please answer Sprinkler system it. Each area or floor of the sprinkler network has a water flow indicator, nozzle once rupture, this area of the water flow indicator will act, the signal will be transmitted to the fire control room alarm controller, with the flow of water, the pressure of the water in the pipe network to reduce the wet alarm valve will be opened, the water flow drive hydraulic alarm alarm, pressure switch will be transmitted to the signal to the host of the fire alarm controller, if the host is in automatic mode, through the program host will Automatically start the sprinkler function.
First try to start the pump directly in the control room, and then see if the water flow indicator and pressure switch has a signal to the host. Respectively exclude the water flow indicator, pressure switch, water flow indicator and pressure switch to the central control room of the line, the host, the host to the pump control line, the pump start circuit, the pump is which aspect of the reason.
Question nine: the end of the water test device is always installed in the pipeline at any time to observe? Or only when the test is installed on, after the test is removed? Has been installed in the aspect, easy access to maintenance.