Polyhydron Product

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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. The control can be initiated by sensing the pressure rise internally (directly from it's inlet port A) or remotely (from it's remote pressure control port X). The valves with auxiliary pilot pressure port P (model DPC " E/F/G/H) can be actuated by lower remote pressure than that is required at normal remote pressure control port. 

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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. 

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• Radial piston arrangement, with 3, 5 or 7 pumping elements. Oil immersed face mounting. Valve controlled. Fixed delivery. Bi-directional rotation of shaft. With extension shaft for through drive. Available with extension bracket assembly for coupling a low pressure pump having standard flange. 

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• Heavy duty construction with hardened and ground piston. Renewable Suction, Delivery, Relief and Release valve parts. Integral Relief and Release valves. 

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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. 
• For its working, the element must remain submerged in the oil all the time while pumping. 
• Reciprocating motion of the piston gives pumping action. The motion can be imparted either by a lever, a cam or a rocker arm. 
• Radially arranging a number of such elements around a bearing, which is mounted eccentrically on a rotating shaft and connecting all delivery port of the elements together will create a pump giving a continuous oil flow. Odd number of elements connected in such a manner will give smoother flow than even number. 
• There are seven types of pumping elements, each having different displacement and pressure rating. 

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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. 
• These are available with 7 displacements and 7 pressure ratings. 
• These pumps give fixed output per revolution of the shaft. 

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Polyhydron manufactures Hydraulic Radial Piston Pumps, Industrial & Mobile Hydraulics Valves and Accessories. It has a effective Stockist Network through out India which markets PPL products. Polyhydron products are priced unbeatably low and PPL has changed the prices very marginally in last 25 years This strong marketing strategy is maintained through careful implementation of Just In Time production System, Kanban System etc.

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• Rs 10000 to 50000 per piece

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• Pilot Operated spool type Relief Valve cartridge, Low pressure override due to larger flow area. 

• With set screw and lock nut.
• With hand knob and lock nut.

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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. 

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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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• Direct acting, spooltype pressure reducing valve with control of pressure from either secondary circuit (Model DPM606SA) or from a remote source (Model DPM.06SB). 
• Four pressure rating 25, 50, 100 and 200 bar with primary pressure rating to 315 bar. 
• Pressure setting by screw of hand knob adjustment. 

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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. The correct alignment of the shafts along with the cushioned power transmission through a resilient spider increase the life of the bearings of the pump/motor coupled. The construction also reduces the noise generation considerably. 

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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 (1 R,2R,11R and 12R series).These Extension brackets are precisely machined to reduce misalignment of coupled shafts.The correct alignment of the shafts along with the cushioned power transmission through a resilient spider increases the life of the bearings of the Hi-Low pcpump coupled. The construction also reduces the noise generation considerably. 

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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 
• These bell housings, along with the resilient shaft couplings provide good shaft alignment and help in reducing undue load on the pump and motor bearings as well as vibration and noise 

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• Feed and Power hand pump is meant for applications where initial travel of the Cylinderl / Jack, to which it is connected is under no load or very low load. 
• The pump provides considerably high displacement under low pressure for rapid travel of the Cylinder / Jack and then automatically changes to low displacement when pressure starts rising (above 30 bar), thereby reducing the efforts required to operate the pump. The pump has built in Relief valve (factory set at maximum pressure) as a standard feature for safety of pump as well as the equipment connected to it. The pump also has a Release valve to retract the Cylinder / Jack under external force. The telescopic collapsible handle of the pump is meant for shorter hand movement, when working at low pressure. It also makes the pump compact for transportation. To reduce the force applied by hand, the handle should be extended. The pump also has an additional port for connecting a pressure gauge, if required. 

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• 4JP 06 Joystick Controlled Pilot Oil Unit is a Manual Joystick control valve, meant for providing variable pilot pressure to the hydraulic components like Proportional Pilot Operated Directional Control Valves, Pumps and motors etc., which need variable pilot pressure to control their outputs. 
• The valve has two pairs of outlets, which can be operated independently or in tandem. Depending upon the Joystick tilt, the valve provides variable pressure to one or two of its outlets at a time. 
• The pilot pressure can be regulated in the pressure range of 6 to 19 bar. 

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• Heavy duty construction with hardened and ground plunger. Both suction and delivery valve seats are replacable. Intended for supply of lubricating oil or pilot pressure. 

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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 wel as providing source of oil for emergency applications. These pumps can also be used at construction sites for operating jacks for repair work. Hardened and ground piston and low friction high performance seal give the pump long service life. The collapsible handle makes the pump easy to transport and reduce operating force when the handle is extended. Special Air breather prevents airborne impurities from entering the tank, thereby enhancing the service life of the pump. The pump can be supplied with extra large tank if needed. 

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