Equipment goods
IPC12-30 Pilot-to-Open Check Valve (Dual-Pilot-Operated) |
Product Model |
IPC12-30 CHECK VALVE, PILOT-TO-OPEN (DUAL-PILOT-OPERATED) |
Maximum Pressure |
420 bar (6000 psi) at port ①; 350 bar (5100 psi) at port ②&③ |
Flow |
90 lpm (24 USGPM) |
Internal Leakage |
0.25 ml/min. max. (5 drops/minute) at 207 bar (3000 psi) |
Pilot Ratio |
Pressure reducing: 25: 1; Free flow: 3: 1 |
Standard Bias Springs at Crack |
4.65 bar(65 psi) |
Temperature |
-40°℃~120°C |
Fluids |
Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 ssu).Installation: No restrictions |
Cavity |
IVC12-3A,See page 303 |
Material
Cartridge |
Weight: 0.243kg. (0.54 lbs.); Steel with hardened work surfaces. Zinc-plated exposed surfaces. |
Seal |
O-rings and back-up rings. |
Features of IPC12-30 Dual Pilot Valve, Pilot-to-Open (Dual-Pilot-Operated)
1. Hardened seat for long life and low leakage.
2. Quick reducing hydraulic noise impact by pressure reducing.
3. Compact size.
Operation Symbol of IPC12-30 Check Valve, Pilot-to-Open (Dual-Pilot-Operated)
The IPC12-30 allows flow from② to①, while normally blocking oil flow in the opposite direction. A small amount of flow will pass from① to② when sufficient pressure is applied at③, to reduce the load pressure at port①, and the required pilot pressure to unlock the main stage will decrease with the reduction of load pressure, which allows the flow from①to② completely with sufficient pilot pressure.
The cartridge has a 25: 1 pressure reducing ratio and a 3: 1 pilot ratio. The check is spring-biased to assure holding in static or no-load conditions.
Note: The pilot pressure will 1: 1 increase upon the back pressure on port② during calculating.
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