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- Products
HYRV10-28 (Pilot Operated Relief Valve)
Description:
A cartridge-style pilot-operated poppet-type relief valve.
Operation:
The valve prevents flow from ① to ② until pressure at ① exceeds the set crack pressure and opens the pilot section. The pilot flow creates a pressure differential across the poppet which causes the valve to open allowing flow from ① to ② protecting the circuit from over pressurization.
Specifications
|
Operating pressure: |
240 Bar |
|
Flow: |
7.6 ~ 113.6lpm (2 ~ 30 gpm) |
|
Internal leakage: |
Max 80% of nominal setting, maximum internal leakage is 0.5 ml/min (10 drops/min) |
|
Reseat pressure: |
90% of crack pressure (crack pressure at 7.6 lpm/ 2 gpm) |
|
Pressure rise: |
At 240bar (3500psi): 0.15 bar/ lpm (8 psi/ gpm) |
|
Response time: |
RV to CV at 250 bar/ 53 lpm (3500 psi/ 14 gpm), response is 0.6 seconds. |
|
Opening pressure of check valve: |
2.1 Bar (30psi) |
|
Response time of check valve: |
CV to RV at 250 bar/ 53 lpm (3500 psi/ 14 gpm), response is 0.3 seconds. |
|
Temperature: |
(-54℃ to +135℃) with NBR material seals |
|
Fluids: |
Mineral-based fluids with viscosity of 7.4 to 420 cSt. |
|
Cavity: |
HY10-2, see page G.1.3 |
|
Body material: |
Steel & ductile iron rated to 350 bar |