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1、Prefill valve generally as a hydraulic cylinder and the fuel tank between the suction valve to use, fast to process a large presses, Oil from the tank to the fuel tank, to prevent the pressure from the tank into the fuel tank when the reverse row of oil from the fuel tank to the fuel tank.
2、Flange-type prefill valve small, large and non-leakage through the flow can be directly welded or flange fixed.
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Further Information
How to order：
| PF |
-100 |
-20 |
-F |
| Series number |
Valve size |
Design number |
Type of
connection |
| PF |
80：3"
90：31/2"
100：4"
125：5"
150：6" |
-：Standard
20：Novel |
-:Without flang
FP:with p port flange
FT:with t port flange
F:with p.t port flange |
Specification：
| Model |
Valve size |
Operating flow ℓ/min
| Max.operating
pressure mpa
|
Cracking pressre mpa |
Min pressure proportion |
Weight kg |
| Oll pressure:control pressure |
| PF-80 |
PF-80-20 |
3" |
400 |
25 |
0.012 |
4.0：1 |
8 |
| PF-90 |
PF-90-20 |
3.5" |
630 |
25 |
0.012 |
4.0：1 |
11.3 |
| PF-100 |
PF-100-20 |
4" |
1000 |
25 |
0.012 |
4.3：1 |
14.5 |
| PF-125 |
PF-125-20 |
5" |
1600 |
25 |
0.012 |
4.3：1 |
23 |
| PF-150 |
PF-150-20 |
6" |
2500 |
25 |
0.013 |
4.3：1 |
37 |
Remarks：
1、Maximum flow is a free flow when the pressure loss 0.03MPa obtained value. Velocity is about 3.5m/sec.
2、Minimum hydraulic control pressure ratio for the seat part and the hydraulic control pressure part of the area ratio is determined.
3、Return trip, you must pressure relief first, or may not be able to open or impact. |
Dimension figure：
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Remarks：
