HYDAC INTERNATIONAL GmbH
HYDAC INTERNATIONAL GmbH
66280 Sulzbach/Saar
Germany
Phone: +49 (0) 68 97 509-01
Email: info@hydac.com
Website: www.hydac.com
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A screw-in cartridge, poppet type pilot operated check valve for use as a blocking or load holding device.
Unit of Measure

Specifications

Type

 Cartridge Valve

Style

 Poppet

Model Code Description

 RP08A-01-C-N-50-3

Size

 08

Operating Pressure

 420 bar6000 psi

Nominal Flow

 10 gpm38 L/min

Internal Leakage

 2 drops/min

Pilot Ratio

 3:1

Standard Check Bias Spring

 15 psi1.0 bar

Fluid Operating Temperature Range

 -20 to 120 ºC-4 to 248 ºF

Viscosity

 7.4 to 420 cSt50 to 2000 SUS

Filtration

 21/19/16 or cleaner (per ISO 4406). Use with filter rated ß10 ≥ 200.

Installation

 No Orientation Restrictions

Cavity

 FC08-3

Cavity Rougher Tool

 02580086

Cavity Finisher Tool

 02580087

Cartridge Weight

 0.09 kg0.19 lb

Cartridge Material

 Steel with hardened work surfaces. Buna N or Viton® o-rings. PTFE back-up rings.

Seal Kits (Buna-N)

 FS083-N P/N: 03054795

Seal Kits (Viton®)

 FS083-V P/N: 02591059

Seal Material

 Buna-N

Internal Leakage at 420 bar Pressure

 0.10 cc/min

Valve Model

 RP08A-01

Back-Up Ring Material

 Polytetrafluoroethylene (PTFE)

Number of Ports/Ways

 8

Ports

 SAE

Medium

 Mineral-Based Oils or Synthetics with Lubricating Properties

Operating Temperature [Max]

 120 ºC248 ºF

Cracking Pressure

 1 bar15 psi

Pressure Adjustment Range

 48 to 350 bar700 to 5000 psi

Hex Size

 7/8 in

Torque

 34 to 41 N·m25 to 30 ft·lb

BUn

 EA

Division

 HYDRAULIC DIVISION

Product Group Family

 CARTRIDGE VALVES-CHECK VALVES AND LOAD

Product

 CARTRIDGE VALVES

Standard Line Bodies

N/A

  • Code: FH083-AS6
  • Part No: 03011424
  • Material: Aluminum, anodized
  • Pressure Rating: 3500 psi (245 bar)
  • Weight: 0.58 lb (0.26 kg)
  • Code: FH083-SS6
  • Part No: 00560920
  • Material: Steel, Zinc plated
  • Pressure Rating: 6000 psi (420 bar)
  • Weight: 1.70 lb (0.77 kg)

Operation

N/A The RP08A allows flow from port 2 to port 1, while normally blocking flow from port 1 to port 2. The valve remains closed by bias spring until sufficient pressure is applied at pilot port 3. The cartridge has 3:1 and 4:1 optional pilot ratios, meaning that at least one-third or one-fourth (respectively) of the load pressure held at port 1 is required at port 3 to open the valve. A sealed pilot piston option is available.

Features

N/A

  • Hardened poppet to ensure extended service life and low leakage
  • Additional reseating spring for fast and reliable closing
  • Optional sealed pilot piston
  • Higher flow rating and low pressure drop due to pilot port at 3
  • Same cavity as counterbalance valve RS08
  • All external surfaces zinc-plated or specifically treated
  • Industry common cavity

Note

N/A Subject to technical modifications