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- Products
HYRV16-26 (Pilot Operated Relief Valve)
Description:
A cartridge-style pilot-operated spool-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 spool which causes the valve to open allowing flow from ① to ② protecting the circuit from over pressurization. This cartridge relief offers a smooth transition in response to a load change in a hydraulic circuit.
Specifications
|
Operating pressure: |
240 Bar |
|
Flow: |
See pressure drop vs. flow graph |
|
Internal leakage: |
At 85% of crack pressure setting below 138 bar, maximum internal leakage is 115m/min; at 85% of crack pressure setting above 138 bar, maximum internal leakage is 197 m/min. |
|
Reseat pressure: |
90% of crack pressure (crack pressure at 0.95 lpm/ 0.25 gpm) |
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Standard spring ranges: |
03: 9.66 bar to 20.7 bar |
|
06: 15.87 bar to 41.4 bar |
|
|
15: 36.63 bar to 103.52 bar |
|
|
35: 82.82 bar to 241.55 bar |
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Temperature: |
(-40℃ to +120℃) with NBR material seals |
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Fluids: |
Mineral-based fluids with viscosity of 7.4 to 420 cSt. |
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Cavity: |
HY16-2, see page H.1.5 |
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Body material: |
Steel & ductile iron rated to 350 bar |