Direct Operated Pressure Reducing Valve - Series PRDM(AP) | Product Series

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Direct Operated Pressure Reducing Valve - Series PRDM(AP)

Direct Operated Pressure Reducing Valve - Series PRDM(AP)

Where to Buy

Parker direct operated pressure reducing valves series PRDM in sandwich design ensure a precise pressure regulation in one area of a hydraulic circuit at a predetermined level below normal system pressure.

Technical Specifications

  • Mounting Type: Sandwich plate
  • Operation Type: Direct
  • Actuation Type: Manually
  • Product Series: Pressure reducing
  • Adjustment Mechanism: Hexagon socket as standard, knob as optional
  • Seal Material: V - FPM
  • Gauge Port Size: G 1/4" as standard, coupling M16 as optional
  • Maximum Operating Pressure: P,A,B: 350 (NG06),315 (NG10); T: 50 bar
  • Weight: 1.3 kg (NG06 / CETOP 03), 2.6 kg (NG10 / CETOP 05)
  • Maximum Flow Rate: N/A
  • Maximum Operating Temperature: 60 °C
  • Minimum Operating Temperature: -20 °C
  • Flow Rate: N/A
  • Maximum Pressure Setting: N/A

Full Product Description

As a mature component of Parker's modular sandwich valve system, the direct operated pressure reducing valves series PRDM feature fast response and minimum hysteresis for continuous high productivity. They regulate pressure in one area of a hydraulic circuit at a predetermined level below normal system pressure. Additionally, an integral pressure relieving function for the secondary reduced pressure circuit is incorporated into the design.

Markets:
• Industrial
• Machine tools
• Rubber & tire processing

Features/Benefits:
• Extremely versatile due to a wide pressure range
• Fine-tuned pressure stages - tailor-made for precise pressure regulation
• Fast response - ensures optimized operation
• Direct operated, cushioned piston design - provides low leakage and minimum hysteresis
• Short delivery time for most variations - no warehousing necessary
• Sizes: PRDM2 - NG06 (CETOP 03), PRDM3 - NG10 (CETOP 05)
• 3-way design for pressure relieving of the secondary side
• Reduced pressure in the 'P', 'A' or 'B' port
• Pressure settings: 25, 70, 160, 210, 350 bar for PRDM2; 19, 50, 100, 150, 210 bar for PRDM3
• Gauge port

Applications:
• Suitable for general hydraulic applications
• Machine tools
• Tire presses

Function:
PRDM valves are "normally open" devices that allow fluid to flow through the controlled port during their non-actuated or "at rest" condition. When downstream pressure exceeds the value set by the spring force, the control piston moves off its seat, closing off the flow path and thus reducing the fluid passing through from the main system. The cushioned piston modulates to maintain the preset pressure in this branch of the hydraulic circuit. If, due to external forces, the pressure continues to rise in this branch circuit, the piston will keep moving against the spring force allowing fluid to be drained to the tank, thereby limiting maximum pressure to the valve's setting.

Related Documents

Literature and Reference Materials
CATALOGUE - Hydraulic Valves Industrial Standard, Online Version--MSG11-3500/UK
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Products Nominal Size Function Pressure Range (bar)
SPRDM2BB06SVG NG06 / CETOP 03 BB - Reduction in port B 06 - up to 64 Bar
SPRDM2BB16SVG NG06 / CETOP 03 BB - Reduction in port B 16 - up to 160 Bar
SPRDM2BB21SVG NG06 / CETOP 03 BB - Reduction in port B 21 - up to 210 Bar
SPRDM2AA06SVG NG06 / CETOP 03 AA - Reduction in port A 06 - up to 64 Bar
SPRDM2AA16SVG NG06 / CETOP 03 AA - Reduction in port A 16 - up to 160 Bar
SPRDM2AA21SVG NG06 / CETOP 03 AA - Reduction in port A 21 - up to 210 Bar
SPRDM2PP06SVG NG06 / CETOP 03 PP - Reduction in port P 06 - up to 64 Bar
SPRDM2PP16SVG NG06 / CETOP 03 PP - Reduction in port P 16 - up to 160 Bar
SPRDM2PP21SVG NG06 / CETOP 03 PP - Reduction in port P 21 - up to 210 Bar
SPRDM2PP35SVG NG06 / CETOP 03 PP - Reduction in port P 35 - up to 350 Bar
SPRDM3BB05SVG NG10 / CETOP 05 BB - Reduction in port B 05 - up to 50 Bar
SPRDM3BB15SVG NG10 / CETOP 05 BB - Reduction in port B 15 - up to 150 Bar
SPRDM3BB21SVG NG10 / CETOP 05 BB - Reduction in port B 21 - up to 210 Bar
SPRDM3AA05SVG NG10 / CETOP 05 AA - Reduction in port A 05 - up to 50 Bar
SPRDM3AA15SVG NG10 / CETOP 05 AA - Reduction in port A 15 - up to 150 Bar
SPRDM3AA21SVG NG10 / CETOP 05 AA - Reduction in port A 21 - up to 210 Bar
SPRDM3PP05SVG NG10 / CETOP 05 PP - Reduction in port P 05 - up to 50 Bar
SPRDM3PP15SVG NG10 / CETOP 05 PP - Reduction in port P 15 - up to 150 Bar
SPRDM3PP21SVG NG10 / CETOP 05 PP - Reduction in port P 21 - up to 210 Bar

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