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Operation:
The valve allows flow from ② to ③, while normally blocking flow from ③ to ②.
Flow will be allowed from ③ to ② when sufficient pressure is applied at ①.
The cartridge has a 3.5:1 pilot ratio, meaning that at least 28 percent of the load pressure held at ③ is required at ① to open the valve.
Specifications
Max. operating pressure: |
240 Bar |
Flow: |
See pressure drop vs. flow graph |
Internal leakage: |
③ to ②: 2 Drops/min. at 240 bar |
② to ①: 115 ml/min. at 240 bar |
|
Crack pressure: |
2.1 Bar 4.8 Bar 6.2 Bar 8.2 Bar 18.3 Bar |
Pilot ratio: |
3.5:1 |
Temperature: |
(-40℃ to +120℃) with NBR material seals |
Fluids: |
Mineral-based fluids with viscosity of 7.4 to 420 cSt. |
Cavity: |
HY10-3, see page H.1.4 |
Body material: |
6061-T6 Aluminum alloy rated to 207 bar, steel & ductile iron rated to 350 bar |