Polyhydron

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Pressure  control  valves    are  direct  operated  hydraulically cushioned valves.  These are used to control sequencing, unloading or back pressure of oil  flow in a hydraulic system.

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Direct acting valve. Guided poppet design. Cushion arrangement for greater stability and noise control.

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Completely encapsulated mechanism for protection against dirt. Five chamber design for better reduction in dynamic forces and longer valve life.

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Completely encapsulated mechanism for protection against dirt. Five chamber  design for  better  reduction in  dynamic  forces and  longer valve life.

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Completely encapsulated mechanism for protection against dirt.

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Two stage spool type Relief / Reducing valve cartridge Low pressure override due to larger flow area

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The bell housing series BHP are designed for coupling Polyhydron make Radial Piston pumps series 1R, 2R, 11R and 12R to electric motors having metric flanges as per IS : 2223

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The bell housing series BH are designed for coupling hydraulic pumps having ISO flanges to electric motors having metric flanges. These bell housing are precisely machined to reduce misalignment of coupled shafts.

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Valve model MPPM*06 are Pilot operated pressure reducing valves, offering reduced pressure at it’s out let port.

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Pilot  optd.  pressure  Relief  Valve  modular construction for vertical stacking assemblies. For Cartridge Valve details refer P09605

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Two stage poppet type Relief valve. Solenoid unloading or proportional relieving facility as an optional feature.

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Direct acting, spooltype  pressure  reducing valve  with control of pressure from either secondary circuit (Model DPM*06SA) or from a remote source (Model DPM*06SB).

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4-port,  spool  type,  directional  control  valves  with  hand  lever  actuation  and  wide  variety  of  spool  types  with  spring-centered,  spring-offset  and  de-tent arrangements.

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The  Extension  bracket  series  EB  are  designed  for  coupling  Low pressure hydraulic pumps having flanges as per ISO standards to Polyhydron make high pr. pumps (1R,2R,11R and 12R series).These Extension brackets are precisely machined to   reduce misalignment of coupled shafts.

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Hand pump model HP*-D  are  compact  heavy duty pumps designed for  industrial  applications  like operating  small presses, fixtures  as well  as  providing source of oil for hydraulically operated emergency equipments.

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Model  11R****  are  rugged  oil  immersed  type Radial Piston Pumps and have either 5, 7 or 9 pumping elements. These pumps are valve controlled and there is no restriction on direction of rotation of the pump.

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Model  11RC****  are  rugged  Radial  piston  pumps and have either 5, 7 or 9 pumping elements. These pumps are valve  controlled and  therefore there is no  restriction on  direction  of rotation of the pump. 

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Model 12R**** are rugged oil immersed type Radial Piston Double Pumps and have either 3, 5 or 7 pumping  elements  in  each  section  of  the pump.

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Model 12RC**** are rugged  Radial Piston Double  Pumps  and have either 3, 5, 7 or 9  pumping  elements  in  each  section  of  the  pump.

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Pumps model 1R2** are  small ,  low weight , rugged oil immersed type Radial Piston Pumps. These pumps are valve controlled and there is no restriction on direction of rotation of the pump.

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Pumps  model 1R3** are  small , low weight , rugged oil immersed type Radial Piston Pumps. These pumps are valve controlled and there is no restriction on direction of rotation of the pump.

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Model 1RC**** are small, low weight, rugged radial piston pumps with  2, 3, 5 or 7  pumping  elements.

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Model  1R**** are  small,  low  weight,  rugged oil immersed  type Radial  Piston  Pumps  with  2, 3, 5 or 7  pumping  elements.

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Model 2R**** are  rugged  oil  immersed  type  Radial  Piston Double Pumps with 3, 5 or 7 pumping elements in each section  of the pump. 

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Model 2RC**** are rugged Radial Piston Double Pumps with 3, 5 or 7 pumping  elements  in  each  section of  the  pump. 

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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.

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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.

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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.

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Designed to control double pumps of Hi-Low system. Unloads low pressure pump when system pressure rises above the pressure set on Unloader valve

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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.

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Designed to control Double pumps of Hi-Low system. Unloads low pressure pump when system pressure rises above the pressure set on Unloader valve.

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Direct acting, spooltype  pressure sequence valve. Four pressure rating 25, 50, 100 and 200 bar with primary pressure rating to 315 bar.

Veljan Throttle Valves VDV7 and Throttle Valves with integral Check Valves VDRV7 are for various applications requiring flow regulation without pressure compensation.

Model 11R is a Piston type self contained pumping element supplied with its Suction valve, Delivery valve and a spring loaded piston as a single unit. It is basically meant for supplying  small volume of lubricating oil under high pressure.

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Model 1R is a Piston type self contained pumping element, supplied with its Suction valve , Delivery valve and a spring loaded piston as a single unit. It is basically meant for supplying small volume of lubricating oil under high pressure.

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Feed and  power hand  pump models HP5012**-D  and  HP5016**-D  are meant for applications where  initial  travel  of  the cylinder / jack, to which  it is connected, and is under no load or very low load. 

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4-port, spool type, solenoid  operated, directional control  valves  with  wet armature  AC  or  DC  coils  and wide variety of spool types with spring-centered and spring-offset arrangements.

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Hand pump model HP12 and HP16 are compact heavy duty pumps designed for Industrial applications like operating small presses fixtures as well as providing source of oil for emergency applications.

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Pilot Operated Check valve models CI allow free flow in the direction from Port A to Port B and offer leak free closure in opposite direction.

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Pilot operated Check valves model CI06 allow free flow in the  direction from  Port A to Port B and offer leakage free closure in opposite direction.