RV16-S6
RV16-S6
RV16-S6 is a screw-in, two-stage pilot-operated, spool-type cartridge relief valve designed for hydraulic circuits requiring fast response and low hysteresis. It functions as a pressure control device.
Operation
The valve blocks flow from point ① to ② until sufficient pressure at ① forces the pilot relief off its seat, causing a pressure differential across the main spool and allowing flow from ① to ②. It offers quick response to load changes but cannot be used in crossover relief applications.
Technical Specifications
- Max. Operating Pressure: 250 bar (3600 psi)
- Proof Pressure: 375 bar (5500 psi)
- Internal Leakage: Max 115 ml/min for pressure <138 bar, 197 ml/min for pressure ≥138 bar
- Crack Pressure: Evident at 7.6 L/min
- Reseat Pressure: Nominal 90% of crack pressure
- Temperature Range: -40℃ to 120℃ with standard buna seals, -26℃ to 204℃ with fluorocarbon seals, -54℃ to 107℃ with polyurethane seals
- Fluid Compatibility: Mineral-based or synthetic with viscosities of 7.4 to 420 cSt
- Installation: No restriction
Features
- Fast and smooth response to pressure changes
- Positive stops to prevent spring solidification
- Compact size
- Adjustments are secure and cannot be backed out
- Industry-standard cavity
- Hardened spool and cage for durability
Materials and Dimensions
- Cartridge: 0.56 kg, steel with hardened surfaces, zinc-plated
- Standard Ported Body: 0.57 kg, anodized high-strength 6061 T6 aluminum alloy
Catalog excerpts
Product Information PRESSURE VALVE Pilot-Operated,Spool-type, Relief Valve Type: RV16-S6 Max. operating pressure: 250 bar (3600 psi) Proof pressure: 375 bar (5500 psi) Flow: 300 L/min Description RV16-S6 is a screw-in, two stage pilot-operated,spool-type cartridge relief valve, applied as a pressure control device for hydraulic circuits with high demanding on fast response and low hysteresis. Operation The RV16-S6A blocks flow from ® to © , until sufficient pressure is applied at ® to force the pilot relief off its seat. The pilot flow cause the pressure differential across the main spool,resulting in the valve shift and flow opening from ® to © . The RV16-S6A offers fast response to load changes in hydraulic circuits. Note: Back pressure at © will increase the pilot pressure required at © to shift, at a ratio of 1:1. The RV16-S6A cannot be used in crossover relief applications. Technical Data Max. operating pressure 250 bar (3600 psi) Proof pressure375 bar (5500 psi) Flow See performance chart Tested at 85% of normal setting: 115 ml/min(7 cu.in./ Internal leakage min) max. for pressure<138 bar (2000 psi),197 ml/ Crack (Set) pressure defined_ Reseat pressure Standard spring ranges Temperature range Installation Cavity Cavity tool Bar evident at 7.6 L/min attained Nominal 90% of crack pressure Factory default preset value: 50% of rated pressure (See chart 1)_ -40°C ~ 120°C with standard buna seals -26°C ~ 204C with fluorocarbon seals -54C ~ 107C with polyurethane seals_ Mineral based or synthetics with lubricating properties at viscosities of 7.4 ^ 420 cSt (50 ^ 2000 ssu) No restriction VC16-2 ~ Folw (lpm) (Performance Chart) (Chart 1: Standard Spring Range)
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Pilot-Operated,Spool-type, Relief Valve Product Information Materials • Fast and smooth response to pressure changes. • Positive stops prevent springs from going solid. • Compact size. • Adjustments cannot be backed out of the valve. • Industry common cavity. • Hardened spool and cage for long life. Pilot-Operated Spool -Adjustment Option- 6mm. Hex Allen Head A 40mm. Dia. Alum. Knob B Cover Cap C Seals- N=Buna N V=Fluorocarbon U=Polyurethane -Porting None=Cartridge Only D , . . . 6G=G3/4 Preset value required by customer 12T=SAE12 Other porting types defined by customers Cartridge: Weight: 0.56...
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