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Add the Pilot Piston Style Pilot-Operated Check Valves to your store or catalog  
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Pilot Piston Style Pilot Operated Check Valves

Pilot Piston Style Pilot-Operated Check Valves

Brand: Parker Hannifin
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Parker’s family of dual pilot operated check valves feature a space and cost saving design that fits in a common industry cavity and can operate with hydraulic system flows as high as 226 lpm and pressures up to 350 bar. 

The internal pilot piston of Parker’s selection make these valves suitable for load and position holding applications within a broad range of markets, such as the aerial, construction, material handling, industrial markets, and many more. 

These reliable valves have pilot ratios of 3:1 and 4:1 as available options depending on application needs.
Features
  • Cost effective – replaces two cartridges 
  • Hardened, precision ground parts for durability 
  • Internal pilot piston 
  • Common cavity 
  • All external parts zinc plated

Specifications

Brand

Body Material

  • Aluminum, Steel

Cavity Size

  • C08, C10, C16

Cracking Pressure (bar)

  • 0.3, 0.7, 2.1, 4.5, 6.9, 10.4, 1.4, 3.5, 5.5, 12.1

Cracking Pressure (psi)

  • 5, 10, 30, 65, 100, 150, 20, 50, 80, 175

Filtration Ratings

  • ISO 4406: 1999 Code 18/16/13

Function

  • Single Pilot Operated

Maximum Inlet Pressure (bar)

  • 207, 350, 210

Maximum Inlet Pressure (psi)

  • 3000, 5000

Maximum Internal Leakage (cc/min)

  • 2 Dpm (.13 cc/min) Across Check Valves & 312 cc/min Across Pilot Piston (no Seals), 5 Dpm (.33 cc/min) Across Check Valves & 312 cc/min Across Pilot Piston (no Seals)

Operating Temperature (°C)

  • -45° to +132° C, -34° to +121° C, -26° to +204° C

Operating Temperature (°F)

  • -50° to +270°, -30° to +250°, -15° to +400° F

Pilot Pressure Ratio

  • 4:1, 3:1

Rated Flow (gpm)

  • 10, 15, 60

Rated Flow (Lpm)

  • 38, 56, 225

Rated Fluid Viscosity (CSt)

  • Mineral-based or Synthetic with Lubricating Properties at Viscosities of 45-2000 SSU (6 to 420 cSt)

Seal Material

  • D-Ring (Standard), Nitrile, Fluorocarbon

Sealed Pilot

  • No, Yes

Valve Material

  • All Parts Steel. All Operating Parts Hardened Steel

Weight (kg)

  • 0.45, 0.9, 1.13, 1.8, 3.6

Weight (Lbs)

  • 1, 2, 2.5, 4, 8

  • Load Holding 
  • Position Holding
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