Description
900X emergency shut off valve
Working principle of 900X emergency shut-off valve:
900X emergency shut-off valve is a kind of valve used to allocate the direction of water supply in parallel water supply system of fire water and domestic water. In case of fire, a large amount of water is urgently needed for fire fighting. Domestic water should be cut off immediately to ensure sufficient water for fire fighting; When the fire stop water pressure decreases, the valve will automatically open, in a normally open state, to restore domestic water supply.
Product features of 900X emergency shut-off valve:
1. The valve has high control sensitivity, safety and reliability, simple debugging and long service life.
2. The valve body adopts full channel, direct current and streamline design. The hydraulic loss is small and the energy saving effect is good.
3. The valve makes it unnecessary for the system to set up a separate fire water supply network, which greatly saves the construction cost and water consumption.
Main technical parameters of 900X emergency shut-off valve:
Nominal pressure (MPa) |
Shell test pressure (MPa) |
Sealing test pressure (MPa) |
Applicable medium |
Medium temperature (℃) |
1.0 | 1.5 | 1.1 |
Water |
0~80 |
1.6 | 2.4 | 1.76 | ||
2.5 | 3.75 | 2.75 |
900X emergency shut-off valve main parts material:
Part name |
Material of parts |
Body and cover |
WCB |
Seat and disc |
Copper alloy |
Sealing ring O-ring |
Nitrile rubber |
Stem | 2Cr13 |
Spring |
50CrVA |
Needle valve |
Copper alloy |
Ball valve |
Copper alloy |
Floating ball |
Copper alloy |
Micro filter |
Stainless steel |
Structural drawing of 900X emergency shut-off valve:
Serial number |
Name |
Material |
Serial number |
Name |
Material |
1 |
Screw plug |
Carbon steel |
11 | Rings |
Carbon steel |
2 | Body |
Cast iron, cast steel, stainless steel |
12 | Ball valve |
Copper alloy |
3 | Stem | 2Cr13 | 13 |
Pressure gauge |
Assembly |
4 | Nut |
Carbon steel |
14 |
Solenoid pilot valve |
Assembly |
5 |
Seal ring |
Rubber |
15 |
Compression spring |
Stainless steel |
6 | Disc |
Carbon steel |
16 |
Stud、nut |
Carbon steel |
7 |
Diaphragm pressure plate |
Carbon steel |
17 |
Needle valve |
Copper alloy |
8 |
Rubber diaphragm |
Nitrile rubber |
18 |
Pressure gauge |
Assembly |
9 |
Ball valve |
Copper alloy |
19 | Ball valve |
Copper alloy |
10 | Bonnet |
Cast iron, cast steel, stainless steel |
20 |
Microfilter |
Stainless steel |
Main connecting dimensions of 900X emergency shut-off valve:
DN | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 |
L | 150 | 160 | 180 | 200 | 203 | 216 | 241 | 292 | 330 | 356 | 495 | 622 | 698 | 787 | 914 | 978 |
H1 | 247 | 247 | 247 | 278 | 278 | 298 | 313 | 350 | 365 | 420 | 450 | 470 | 490 | 523 | 576 | 570 |
H | 342 | 342 | 342 | 395 | 395 | 405 | 430 | 510 | 560 | 585 | 675 | 730 | 760 | 840 | 910 | 910 |
Install