Parker Parker Pressure Valve Series Description

Parker Parker Pressure Valve

Parker Parker EVSA and VSA Series Direct Acting Relief Valves
The Parker Parker EVSA and VSA series of direct-acting relief valves are constructed as adjustable spring-loaded, direct-acting, shock-absorbing seat valves. There are 3 selectable maximum pressure adjustment levels of 64, 160 and 315 bar. Its function is: when the pressure exceeds the set value of the adjusting spring, the poppet valve opens to make P→T or A→B communicate. The integrated damping spool prevents pressure fluctuations in the transition zone. The pressure adjustment can be set via an adjusting bolt with a lock nut. A cylinder lock can also be used to protect the setpoint if required.

Parker Parker VB/VM/VS Series Direct Acting Pressure Valves
Parker Parker VB/VM/VS series direct-acting pressure valve is an adjustable spring-loaded direct-acting shock-absorbing piston type slide valve with low hysteresis. It can be supplied at a pressure rating of 25, 64, 160, 210 bar (NG06) or 64, 125, 210 bar (NG10). The pressure reducing valve has a 3-gene structure.

Parker Parker DSD Series NG6 Relief Valve
The Parker Parker DSD Series NG6 relief valve restricts system pressure by opening the pressure port P to return oil to the tank. The valve NG6 is a direct-acting type and has a P port according to the DIN-standard, A port and T port. Ports P and A are connected in the valve body. The direct acting valve can also be used as a pilot valve for a pilot operated relief valve.

Parker Parker R Series Pilot Operated Relief Valve
The Parker Parker R Series pilot operated relief valve has a sturdy body that consists of a DIN24342-compliant cartridge valve as the primary stage and a threaded cartridge valve as the pilot stage. The orifice can be controlled to control the flow of oil and to maintain the stability of a given pressure. Control oil flow can be selected for internal control and external control. It has 2 connectors for use.

Parker Parker RS Series Pilot Operated Relief Valve
The Parker Parker RS Series Pilot Operated Relief Valve has a rugged body consisting of a DIN standard NG25 cartridge cartridge valve as the primary stage and a threaded cartridge valve as the pilot stage. Electronically controlled pressure relief is achieved by an electromagnetic reversing valve mounted on the valve body. The normally open or normally closed commutation switch function can be specified in the order code.

Parker Parker DSDU Series Pilot Operated Relief Valve
The Parker Parker DSDU Series pilot operated relief valve restricts system pressure by opening the pressure port to return fluid to the tank. The valve series of this series have a smooth flow-pressure characteristic for the safety of the accumulator system. This type of valve is calibrated and certified by TUV (German Technical Monitoring Association). The corresponding TUV certificate is supplied with the valve. (see note)

Parker Parker VBY*A/VMY*A Series Pilot Pressure Valves
The Parker Parker VBY*A/VMY*A series pilot operated pressure valve is a pilot operated pressure valve with a nominal size of 06 for stepless pressure regulation. For different functions such as pressing force, back pressure or clamping force, it keeps the predetermined pressure constant. The structure is: the pilot pressure valve is composed of a pilot stage and a main stage. The pre-compression spring acting on the hardened valve seat and the valve cone is adjusted by adjusting the bolt. The force of the pre-compression spring on the valve cone creates a control pressure between the valve seat and the hardened main stage sliding spool, which maintains the spring-loaded spool in the adjusted position, adjusting the position and giving The set pressure corresponds.

Parker Parker DWL/DWK Series Pressure Reducing Valves
The Parker Parker DWL/DWK series pressure reducing valve keeps the pressure at the secondary end (port A) constant at the set point. To achieve an accelerated response, it is fitted with a sliding spool, and the flow control valve in the spool keeps the control oil flow constant.

Parker Parker DSA-P07 Series Proportional Relief Valve
The Parker Parker DSA-P07 series proportional relief valve is controlled by an external electronic module. Thereby, the pressure value of the response required for the overflow function can be selected steplessly. Corresponding adjustment nozzles are installed in the pilot valve for their respective pressure levels. The direct acting valve NG06 can also be used as a pilot valve for the DSA series.

Parker Parker VB*L series direct acting proportional relief valve
Parker Parker VB*L series direct-acting proportional relief valves continuously adjust pressure from minimum to rated pressure. Typical applications are: hydraulic adjustments that require only a small amount of oil flow (eg tool adjustment), or pilot valves for hydraulic adjustment mechanisms of variable pumps. The valve is electrically controlled using a plug amp VS110 or a digital amplifier VRD350 or VRD355, or a PCD module. It can also be used in closed loop pressure regulation circuits.

Parker Parker RE*W Series Direct Acting Proportional Relief Valve
Parker Parker's RE*W series of direct-acting proportional relief valves allow continuous adjustment of the valve's minimum pressure to rated pressure. Usually used only for hydraulic equipment that requires very little flow, or as a pilot valve for variable displacement pumps. The electric proportional control of the valve is carried out using the PCD00A-400 digital amplifier board and can be used for closed-loop control of pressure.

Parker Parker VBY*L/VMY*L series pilot operated proportional pressure valve
The Parker Parker VBY*L/VMY*L series of pilot operated proportional pressure valves are typically used in: clamping pressure systems, test and inspection devices or weight balancing systems. It can also be used in closed loop pressure control loops. Structure of VBY*L: The relief valve consists of a main stage with a spool and a pilot stage. There are control oil nozzles and orifices on the pilot stage. The highest system pressure required can be steplessly adjusted on the electronic amplifier board in accordance with the setpoint value that is adjusted. The electromagnet converts the current into a force acting on the pilot valve cone. Structure of VMY*L: The pressure reducing valve consists of a main stage with a spool and a pilot stage. There is a restrictor valve on the pilot stage. The control oil is taken from the inside and comes from the P-flow path of the valve body (primary control). Control the internal reflux of the oil.

Parker Parker VMY*L*N Series Pilot Proportional Pressure Valves
The Parker Parker VMY*L*N series of pilot operated proportional pressure valves continuously adjusts the pressure from 0 to the rated pressure. Typical applications are: clamping pressure systems, test and inspection devices or weight balancing systems. The valve is electrically controlled using a digital amplifier VRD350 or VRD355, or a plug-in amplifier VS110 or PCD module. The same can be used for closed pressure regulation circuits. The valve stands out for its good voltage regulation performance.

Parker Parker RE*W Series Pilot Operated Proportional Relief Valve
The Parker Parker RE*W series of pilot-operated proportional relief valves consists of a pilot solenoid operated pilot stage and a DIN-standard NG25 cartridge valve as the primary stage. The pressure can be steplessly adjusted by means of a given signal of electricity. The given value is given to the control system via an external electronic module. Use the corresponding adjustment nozzle on the pilot valve for different pressure levels.

Parker Parker RE*T Series Proportional Relief Valve
The Parker Parker RE*T series proportional relief valve consists of a proportional electromagnet operated pilot stage with integrated electronic control unit and a DIN-standard NG25 cartridge valve as the main stage. The supply voltage and the setpoint signal (current or voltage value) can be transmitted via a seven-pin plug. The command entered can be between 0 and 10V or between 0 and 20 mA, see order number. The ramp time for increased pressure and reduced pressure can be adjusted without interference on the two potentiometers. The maximum and minimum potentials determine the pressure range of the hydraulic system when all useful signal ranges are not changed. Use the corresponding adjustment nozzle on the pilot valve for different pressure levels.

Parker Parker DWE/DWU series proportional pressure reducing valve
The Parker Parker DWE/DWU series proportional pressure reducing valve is basically the same as the DWL/DWK series, except that it is adjusted with a proportional electromagnet. Controlled by an external electronic module.

Parker Parker PE/PC Series Pilot Operated Proportional Pressure Reducing Valve
The Parker Parker PE/PC series pilot-operated proportional pressure reducing valve has a proportional electromagnet-controlled pilot stage and spool main stage with the same hydraulic function principle as the DWL/DWK series. The supply voltage and input command signal are connected via a single 7-pin electrical plug. The input command signal can be in the range of 0-10V or 0-20mA, and is selected in the order code. Increase and decrease the pressure ramp time, which can be set separately on 2 potentiometers. The minimum and maximum potentiometers can set the minimum pressure and maximum pressure. These can be calibrated to set the pressure range corresponding to the entire range of the command input signal.