Pilot operated safety valve have new structure is mainly used in petroleum, natural gas, chemical industry, electricity, metallurgy, burning gas. It is the best overpressure protecting device on press equipment, container or pipes. The advantages of the valve are transforming the direct function of spring into indirect function of guide valve, improving sensitivity. The main valve adopts sleeve piston and double seal base, having high precision of action, good recycling function, fast turning back to seat, ability to high pressure leaking, long service life and reliability. It can be adjusted online. It can be adjusted online and can return to base automatically.
Materials
NO. |
Part Name |
Materials |
1 |
Body |
WCB |
2 |
Disc |
2Cr13/2Cr13+PTFE |
3 |
Guide |
1Cr18Ni9Ti |
4 |
Spring |
50CrVA |
5 |
O ring |
Fluororubber |
6 |
Bonnet |
WCB |
Dimensions
Nominal Diameter |
D0 |
L |
L1 |
L2 |
H |
DN’ |
D |
D1 |
D2 |
25 |
15 |
110 |
95 |
150 |
365 |
32 |
115 |
85 |
65 |
32 |
20 |
115 |
100 |
150 |
375 |
40 |
140 |
100 |
78 |
40 |
25 |
120 |
110 |
160 |
390 |
50 |
150 |
110 |
85 |
50 |
32 |
135 |
120 |
160 |
410 |
65 |
165 |
125 |
100 |
65 |
40 |
160 |
140 |
175 |
435 |
80 |
185 |
145 |
120 |
80 |
50 |
170 |
135 |
175 |
451 |
100 |
200 |
180 |
135 |
125 |
65 |
195 |
175 |
195 |
500 |
150 |
220 |
210 |
185 |
150 |
100 |
255 |
190 |
220 |
623 |
175 |
250 |
240 |
210 |
200 |
125 |
300 |
230 |
300 |
690 |
250 |
340 |
295 |
265 |