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Quick Reference Cartridge Valves Technical Information Relief Valves Quick Reference Thermal Relief Description Relief Valve, Thermal Relief, Poppet Type Flow* 30 l/min [8 US gal/min] 40 l/min [11 US gal/min] Description Relief Valve, Direct Acting, Poppet Type Description Relief Valve, Direct Acting, Dampening, Poppet Type Flow* 30 l/min [8 US gal/min] 40 l/min [11 US gal/min] 40 l/min [11 US gal/min] 50 l/min [13 US gal/min] 80 l/min [21 US gal/min] Flow* 40 l/min [11 US gal/min] 40 l/min [11 US gal/min] 75 l/min [20 US gal/min] 150 l/min [40 US gal/min] Direct Acting Differential Area Description Relief Valve, Differential Area, Poppet Type, Relief valves Quick reference Direct Acting

Quick Reference Cartridge Valves Technical Information Relief Valves Quick Reference Direct Acting Description Relief Valve, Direct Acting, Spool Type, Flow* 45 l/min [12 US gal/min] 75 l/min [20 US gal/min] Description Relief Valve, Pilot Operated, Spool Type Flow* 115 l/min [30 US gal/min] 190 l/min [50 US gal/min] Description Relief Valve, Pilot Operated, Poppet Type Flow* Pressure 120 l/min 250 bar [32 US gal/min] [3625 psi] Description Relief Valve, Bi-directional Flow* Pressure 40 l/min 250 bar [11 US gal/min] [3600 psi] Pilot Operated Pilot Operated Relief valves Quick reference

Quick Reference Cartridge Valves Technical Information Relief Valves Quick Reference Differential Area Description Relief Valve, Differential Area, Poppet Type with Reverse Free Flow Check Flow* 80 l/min [21 US gal/min] 140 l/min [37 US gal/min] Description Relief Valve, Differential Area, Poppet Type with Reverse Free Flow Check, Atmospheric Venting Flow* 80 l/min [21 US gal/min] 140 l/min [37 US gal/min] Description Relief Valve, Cross-Over, Catalog HIC Flow* 40 l/min [11 US gal/min] 75 l/min [20 US gal/min] 190 l/min [50 US gal/min] Differential Area Cavity none none Relief valves Quick...

Quick Reference Cartridge Valves Technical Information Relief Valves Application Notes APPLICATIONS Relief valves are used as pressure limiting devices to protect hydraulic systems and components. They are available in direct-acting poppet, differential area poppet, bidirectional poppet, and pilot-operated spool types. Relief valves Relief valves Applications notes Direct-acting poppet Direct acting poppet relief valve The direct-acting poppet blocks flow from 1 to 2 until sufficient pressure is 1 present at 1 to force the spring-opposed poppet from it’s seat. This pressure is 2 commonly...

Quick Reference Cartridge Valves Technical Information Relief Valves Application Notes Because of these features some common applications for direct-acting and differential area poppet relief valves are: · · Main system relief valve if flow is relatively constant, or as a safety relief valve for “spike clipping” to protect components from overpressure Work port cross-over relief to protect a cylinder or motor from overpressure System Relief Valve Work Port Cross-Relief Valves Bi-directional poppet The bi-directional poppet is a dual cross-over relief in a single cartridge. Bi-directional...

Quick Reference Cartridge Valves Technical Information Relief Valves Thermal Relief CP208-4 OPERATION This is a direct-acting poppet type thermal relief valve that relieves from 1 to 2. Rated pressure Rated flow Leakage Weight Cavity 415 bar [6000 psi] 1.1 l/min [0.3 US gal/min] 10 drops/min @ 80% of pressure setting 0.23 kg [0.50 lb] SDC08-2 Cross-sectional view Relief valves ORDERING INFORMATION CP208-4-B-4S-E-C-300 Seals B = Buna-N V = Viton Housing and ports Housing P/N 0 = No Housing No Housing DG2B = Al, 1/4 BSP SDC08-2-DG-2B DG3B = Al, 3/8 BSP SDC08-2-DG-3B 4S = Al, #4 SAE CP08-2-4S...

Quick Reference Cartridge Valves Technical Information Relief Valves Direct Acting CP208-3 OPERATION This is a direct-acting poppet type relief valve that relieves from 1 to 2. Rated pressure Rated flow Leakage Weight Cavity 250 bar [3600 psi] 30 l/min [8 US gal/min] 10 drops/min @ 80% of pressure setting 0.15 kg [0.32 lb] SDC08-2 Cross-sectional view Type E adjustment Type K adjustment ORDERING INFORMATION CP208 - 3 - B - 6S - A - C - 150 Seals B = Buna-N V = Viton Housing and ports 0 = No Housing DG2B = Al, 1/4 BSP DG3B = Al, 3/8 BSP 4S = Al, #4 SAE 6S = Al, #6 SAE Other housings...

Quick Reference Cartridge Valves Technical Information Relief Valves Direct Acting CP200-3 OPERATION This is a direct-acting poppet type relief valve that relieves from 1 to 2. Rated pressure Rated flow Leakage Weight Cavity 250 bar [3600 psi] 40 l/min [11 US gal/min] 10 drops/min @ 80% of pressure setting 0.21 kg [0.47 lb] SDC10-2 Cross-sectional view 7/8-14 UNF Type A adjustment Type F adjustment Relief valves Type E adjustment Type K adjustment ORDERING INFORMATION CP200 - 3 - B - 6S - A - C - 150 Seals B = Buna-N V = Viton Housing and ports 0 = No Housing DG3B = Al, 3/8 BSP DG4B = Al, ½...

Quick Reference Cartridge Valves Technical Information Relief Valves Direct Acting RV08-DR OPERATION This is a direct-acting, poppet-type relief valve that relieves from 1 to 2. It features a highly damped poppet for smooth and stable response. Rated pressure Rated flow Leakage Weight Cavity 250 bar [3600 psi] 30 l/min [8 US gal/min] 10 drops/min @ 80% of pressure setting 0.10 kg [0.22 lb] SDC08-2 Cross-sectional view ORDERING INFORMATION RV08-DR-1-E-XXX-B-4S Pressure range 1 = 20-80 Bar [290-1150 psi] 2 = 35-160 Bar [500-2300 psi] 3 = 60-250 Bar [870-3600 psi] Adjustment option E =...

Quick Reference Cartridge Valves Technical Information Relief Valves Direct Acting VEN 06 OPERATION This is a direct-acting, poppet-type relief valve that relieves from 1 to 2. It features a highly damped poppet for smooth and stable response. Minimum setting value 0 Rated pressure Rated flow Weight Cavity Cross-sectional view Relief valves ORDERING INFORMATION VEN 06 - M - 1 - DG3/8 - V - XXX Type of adjustment EN = External screw M = Handwheel Seals V = Viton seals Omit = Buna-N Housing and ports Housing P/N 0 = No Housing No Housing DG3/8 = AL, 3/8 BSP NCS06/2-DG-3/8 DG1/2 = AL, 1/2 BSP...