nstalled in the pipeline, high-rise building fire water supply system and water supply system, water supply pipeline when the pressure exceeds the pressure relief valve set pressure relief valve automatically open quick pressure relief protection, pipeline safety, also can be used for holding pressure valve, the main valve upstream water supply pressure protection. Can accurately maintain the constant pressure to set the safety, once the overpressure, pressure relief valve quickly open, timely pressure relief. Close the stable and reliable, eliminating the pressure wave.
Note: parameters are for reference only, or are not full. Valve can be used in accordance with the requirements of different pressure, material, diameter, drive, etc.. Specific please contact or online advisory contact.
Nominal diameter: DN50~DN1200
Nominal pressure: 1.0~4.0Mpa
Applicable medium: water, oil
Applicable temperature: 0~80
Connection form: flange
Material: cast iron, cast steel, cast iron, stainless steel
|
DN
|
50
|
65
|
80
|
100
|
125
|
150
|
200
|
250
|
300
|
350
|
400
|
450
|
500
|
600
|
700
|
800
|
900
|
1000
|
|
L
|
205
|
216
|
250
|
320
|
365
|
415
|
500
|
605
|
698
|
787
|
914
|
978
|
978
|
1150
|
1300
|
1450
|
1650
|
1800
|
|
H
|
300
|
337
|
467
|
520
|
580
|
640
|
778
|
889
|
1010
|
1037
|
1264
|
1294
|
1324
|
1600
|
1750
|
1900
|
2100
|
2400
|
When the pipe from the water inlet water, the water flow through the needle into the main valve control room, outlet pressure through the catheter to guide valve, when the outlet pressure is higher than the set value of the pilot valve, pilot valve closed, control room to stop the drainage, when the main valve control room pressure rise and close the main valve to stop water supply. When the outlet pressure to a pilot valve set pressure, the control room to the downstream drainage, because the amount of water drainage amount is greater than the valve guide valve, the main valve pressure drop in the control room, open the main valve inlet pressure, stable state, the control room water, drainage, opening constant outlet pressure do not adjust the guide you can set the outlet pressure valve spring.
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