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Welcome to POLYHYDRON P.LTD.

Pilot Operated Pressure Relief Valves (Cartridge Type)

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Two stage Spool type Relief / Reducing Valve Cartridge Low pressure override due to larger flow area.

Two options for pressure adjustment,
                         - With set screw and lock nut.
                         - With hand knob and lock nut.

Internal drain valves can be converted to external drain.

Our Vision

* To embrace new technologies and methods. * To give unsurpassed products and services to the clients. * To constantly look for improvement and changes.

Site Designed & Maintained by Aman Infotech
A, Bell Housing Assembly (Factory Standard) B. H. P, Bell Housing Assembly B. H, Brake Valve (Developed For O. E. M Customers), By Pass Check Valve (Modular) B. C. M, Cartridge Valve Cover With Pilot Optd. Check Valve And With Stroke Limiter, Cartridge Valves C. V 16 To C. V 40, Check Valve 2C. I, Check Valve C, Check Valve C. I, Check Valve C. I06, Check Valve C. L, Check Valve Screw In Cartridge Ksc And Ksd (Discontinued, Check Valves, Check Valves C, Counter Balance Valve, Cover For 2 Manual Pressure Setting Electrically Selectable, Cover For Fitting Directional Spool Valve (Solenoid Controlled), Cover For Proportional Relief Valve, Cover With Built In Shuttle Valve, Cover With Built In Shuttle Valve For Fitting, Cover With Built In Shuttle Valve For Fitting Directional Spool Valve, Cover With Stroke Limiter, Cover With Stroke Limiter And Directional Control Valve Model, Cover With Stroke Limiter Shuttle Valve And D. C. Valve, Direct Operated Pressure Control Valve, Direct Operated Pressure Reducing Valve, Direct Operated Pressure Relief Valve, Direct Operated Pressure Sequence Valve, Directional Control, Extension Bracket Assembly, Feed And Power Hand Pumps, Feed And Power Hand Pumps (With Small Tank), Flow Control, Flow Divider Valve, Foot Pump, Foot Valve, Hand Pumps (Tank Side Mounting), Hand Pumps H. P10 (Temporarly Production Paused), Hand Pumps H. P12 And H. P16, Hand Pumps With Rotary Directional Control Valvesh, Hand Pumps With Rotary Directional Control Valvesh. P D, Home, Hydraulic Actuators, Hydraulic Rotary Actuators, Joystick Controlled, Joystick Controlled J. P 10, Lever Operated Directional Control Valve (C. E. T. O. P 03) D. L 06 (New Series), Lever Operated Directional Control Valve D. L20, Lever Operated Directional Control Valve (Old Series) D. L10 (Series 10), Lever Operated Pressure Holding D. C. V. D. L. S 10, Lever Operated Pressure Holding D. C. V. D. L. S 20, Lock Valve (Developed For O. E. M Customers), Logic Cartridges, Manifold For D. C. V, Manifolds, Manifolds For Directional Control Valves, Mobile Valves, Pilot Operated Check Valve (Modular) C. I. M 06, Pilot Operated Check Valve (Modular) C. I. M 10, Pilot Operated Directional Control Valve (New Series) D. P 10, Pilot Operated Directional Control Valve D. P 20, Pilot Operated Pressure Reducing Valve, Pilot Operated Pressure Reducing Valve (Modular Construction), Pilot Operated Pressure Reducing Valves (Cartridge Type), Pilot Operated Pressure Relief Cum Unloading Valve, Pilot Operated Pressure Relief Valve (Modular Construction), Pilot Operated Pressure Relief Valves, Pilot Operated Pressure Relief Valves (Cartridge Type), Pneumatic Actuators, Pneumatic Rotary Actuators, Prefill Valve (P. V 100 200), Prefill Valve (P. V 100 200) 21 Series, Prefill Valve (P. V 3280), Pressure Compensated Flow Control Valve, Pressure Control, Pressure Control Module, Pressure Control Modules, Pressure Control Modules P. C. M 20 16, Pressure Switch, Process Air Blowers, Pumping Element 1. R And 2. R, Pumping Element 11. Rand 12. R, Radial Piston Pump, Radial Piston Pump 11. R, Radial Piston Pump 11. R. C, Radial Piston Pump 12. R, Radial Piston Pump 12R. C, Radial Piston Pumps, Radial Piston Pumps 1. R And 1. R. E, Radial Piston Pumps 2. R, Radial Piston Pumps 2. R. C And 2. R. C. E, Radial Piston Pumps1. R. C And 1R. C. E, Relief Cum Unloading Cover (Solenoid Controlled), Return Line Filter, Rotary Actuators, Rotary Air Blowers, Rotary Blowers, Rotary Directional Control Valve R. D. L 06, Shockless Valve (Developed For O. E. M Customers), Shuttle Valves S. L, Side Shift Lock Valve (Developed For O. E. M Customers), Solenoid Operated Cartridge Directional Control Valvec. D. E 06 Discontinued, Solenoid Operated Directional Control Valve (C. E. T. O. P 03), Solenoid Operated Directional Control Valve (C. E. T. O. P 05) D. E 10 (315 Bar 120 Lpm), Solenoid Pilot Operated Directional Control Valve D. E. P 20, Solenoid Pilot Operated Pressure Holding D. C. V. D. E. S 20, Standard Cover C. V. C, Throttle And Check Valve (Modular), Throttle And Check Valve (Modular) T. C. M 10, Tipper Valve (Developed For O. E. M Customers), Travel Pilot Valve (Developed For O. E. M Customers), Two Port Slip In Cartridgesi. S. O 7368 C. V 50 To 100, Pressure Switches, Covers, Pressure Controls, Solenoid Valves, Directional Control Valves, Mobile Hydraulic Valves, Hydraulic Radial Piston Pumps