Valves - Directional Controls - Pilot Operated Check Valve - Integrated Thermal Relief

PC10-38

PILOT OPERATED CHECK VALVE WITH THERMAL RELIEF

Overview

Description

PC10-38 is a screw-in, cartridge-style, pilot operated hydraulic check valve for use as a blocking or load-holding device. The pilot ratio is 3:1. The cartridge incorporates a low flow thermal relief valve intended to prevent cylinder damage resulting from temperature-induced pressure intensification.

NOTE: The thermal relief feature is not intended for use in dynamic pressure limiting applications.

Operation

The PC10-38 allows flow from port 2 to port 3, while blocking oil flow in the opposite direction. If the pressure at port 3 exceeds the thermal relief setting, a small amount of oil will be allowed to pass from port 3 to port 2 preventing cylinder damage from pressure intensification.

Features

  • Integrated low flow thermal relief valve.
  • Hardened seat for long life and low leakage.
  • Optional sealed piston.
  • Industry common cavity.
Pressure Ratings
Pressure rating:
  • 241 bar (3500 psi)
Proof pressure:
  • 390 bar (5700 psi)
Flow Ratings
Flow rating:
  • 45 lpm (12 gpm)
Maximum internal leakage:
  • 0.25 ml/min (5 drops/min) At 241 bar (3500 psi)
Temperature Ratings
Operating fluid temperature:
  • -40 to 100 °C (-40 to 212 °F) With buna N seals
  • -26 to 204 °C (-15 to 400 °F) With fluorocarbon seals
  • -54 to 107 °C (-65 to 225 °F) With polyurethane seals
Storage temperature:
  • -40 to 70 °C (-40 to 160 °F)
Ambient temperature:
  • -40 to 70 °C (-40 to 160 °F)
Other Ratings
Corrosion protection:
  • 960 hr salt spray per ASTM b117 (gpc10-38)
Fluids:
  • Mineral based or synthetic hydraulic fluid with lubricating properties
Fluid viscosity range:
  • 7.4 to 420 cSt
Maximum operating contamination level:
  • 20/18/14 per ISO 4406
Unit weight:
  • 0.14 kg (0.3 lb)
Internal wetted surface area:
  • 146 cm² (22.7 in²)
PC10-38_Perf_Chrt(2022-02-24)
PC10-38_Dim_Dwg(2022-02-24)
Cavity:
Cartridge installation torque:
  • 32.6 to 35.4 N-m (24 to 26 ft-lb)
Orientation restriction:
  • None
Seal kit:
  • SK10-3X-TM (x = seal option)
PC10-38_Order(2022-02-24)

Model Options

PC10-38-H-J-R/S
H Line Body
CODE
DESCRIPTION
0
No Body
6T
Aluminum SAE 6
8T
Aluminum SAE 8
6TD
Ductile Iron SAE 6
8TD
Ductile Iron SAE 8
3B
Aluminum BSPP 3/8" (3)
3BD
Ductile Iron BSPP 3/8" (3)
J Seal
CODE
DESCRIPTION
N
Buna-N
NS
Buna-N with a Sealed Spool
V
Fluorocarbon
VS
Fluorocarbon with a Sealed Spool
P
Polyurethane
PS
Polyurethane with a Sealed Spool
U
PPDI Urethane
US
PPDI Urethane with a Sealed Spool
R Spring
CODE
DESCRIPTION
100
100 psi Bias Spring
S Thermal Relief Setting
CODE
DESCRIPTION
5
500 psi Thermal Relief
10
1000 psi Thermal Relief
20
2000 psi Thermal Relief
25
2500 psi Thermal Relief
30
3000 psi Thermal Relief
40
4000 psi Thermal Relief
45
4500 psi Thermal Relief