The IPC12-30 Pilot-To-Open Check Valves are advanced valves designed for fluid control applications. They feature a pilot-operated mechanism that allows for precise control and reliable operation. With their high-pressure capacity and efficient design, they are ideal for industries requiring accurate and responsive fluid control in demanding environments.
| 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. |
| 1. Hardened seat for long life and low leakage. |
| 2. Quick reducing hydraulic noise impact by pressure reducing. |
| 3. Compact size. |
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.
