Featured Products

Highest quality standards are achieved through the implementations of latest technology, decades of experience and everlasting moral values , which have helped us to retain our customers as well as multiply them.

Welcome to POLYHYDRON P.LTD.

Direct Operated Pressure Relief Valve

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Direct acting with guided cushioned poppet. Available in Cartridge, Threaded and Subplate types.

Direct Operated Pressure Control Valve

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Hydraulically cushioned valves, used to control sequencing, relieving, unloading or counter-balancing operations.

Direct Operated Pressure Reducing Valve

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Direct acting construction with built-in pressure relief for secondary port.By-pass Check Valve optional.

Direct Operated Pressure Sequence Valve

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Direct acting spool type pressure sequence valve. Models available :
Internal pilot, internal drain.
External pilot, internal drain.
Internal pilot, external drain.
External pilot, external drain.
Port A normally connected to port T : control at port P port A normally connected to port T : control at port B Four pressure ratings 25, 50, 100, or 200 bar.For reverse free flow, optional check valve can be supplied as a stackable module. Pressure adjustment by screw or hand knob.

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.

Pilot Operated Pressure Reducing 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.

Pilot Operated Pressure Relief Valve (Modular Construction)

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Pilot operated pressure relief valve modular construction for vertical stacking assemblies.

For Cartridge Valve details refer p09605

Interface conforming to ISO 4401 - AB - 03 -04 - A, IS 10187, DIN 24340
Four models available.

Pilot Operated Pressure Reducing Valve (Modular Construction)

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Pilot operated pressure reducing valve modular construction for vertical stacking assemblies.

For Cartridge Valve details refer p09605

Interface conforming to ISO 4401 - AB - 03 -04 - A, IS 10187, DIN 24340
Four models available.

Pilot Operated Pressure Relief Valves

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Pilot operated seat type valve. High flow handling capacity, low pressure override, remote controllability and solenoid unloading possibility are the main features of these valves. Bodies available with threaded ports or sub-plate mounting style.

Pilot Operated Pressure Relief Cum Unloading Valve

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Two stage poppet type Relief cum unloading valve. Additional solenoid unloading facility as an optional feature. Three standard sizes - 10, 20, & 30.

Pilot Operated Pressure Reducing Valve

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Two stage pilot operated construction. These valves are normally open type valves. When the pressure in the secondary port ( port B ) increases to set pressure, the valve closes against the spring.

Pressure Control Modules

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Designed to control double pumps of a Hi-Low system. Unloads low pressure pump when system pressure rises above the pressure set on unloader valve. Relieves high pressure pump when system pressure reaches the value.

Pressure Control Module

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Designed to control Double pumps of a Hi-Low system. Consists of a High pressure relief valve, a Check valve and a low pressure unloading valve. Unloading of pumps by Solenoid valve / Valves as an optional feature

Pressure Control Modules P.C.M 20 16

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Designed to control Double pumps of a Hi-Low system. Consists of a High pressure relief valve, a Check valve and a low pressure unloading valve. Unloading of pumps by Solenoid valve / Valves as an optional feature.

Counter Balance Valve

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Counter balance valves are seat type valves. They offer free-flow from their port B to A and give leak free closure in opposite direction upto a predetermined pressure. This predetermined cracking pressure can be adjusted within its maximum specified range.

Counter Balance Valve

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Counter balance valves are seat type valves. They offer free-flow from their port B to A and give leak free closure in opposite direction upto a predetermined pressure. This predetermined cracking pressure can be adjusted within its maximum specified range.

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