Valves - Pressure Controls - Thermal Relief Valve

TR04-B20

THERMAL RELIEF VALVE OUTLINE DRAWING

Overview

Description

TR04-B20 is a screw-in, cartridge style, direct acting, poppet type, hydraulic thermal relief valve intended to prevent cylinder damage resulting from temperature induced pressure intensification. This valve is not intended to be used as a relief valve or as protection against load induced pressure spikes.

Operation

The TR04-B20 blocks flow from port 1 to port 2 until sufficient pressure is present at port 1 to force the spring opposed poppet from its seat. Pressure at port 2 should not exceed 500 psi [34,5 bar] above the pressure at port 1. Pressure at port 2 is additive to pressure setting.

Pressure Ratings
Pressure rating:
  • 427 bar (6200 psi)
Proof pressure:
  • 620.7 bar (9000 psi)
Burst pressure:
  • 1241 bar (18000 psi)
Flow Ratings
Reseat characteristic:
  • 0.5 ml/min (10 drops/min) Nominal 85% of crack pressure
Maximum internal leakage:
  • 0.15 ml/min (1 drops/min) At 90% of nominal setting
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 71 °C (-40 to 160 °F)
Ambient temperature:
  • -40 to 71 °C (-40 to 160 °F)
Fluids:
  • Mineral based or synthetic hydraulic fluid with lubricating properties
Fluid viscosity range:
  • 7.4 to 420 cSt
Maximum operating contamination level:
  • 18/16/13 per ISO 4406
Unit weight:
  • 0.09 kg (0.20 lb)
Internal wetted surface area:
  • 19 cm² (2.95 in²)
TR04-B20_Dim(2022-02-24)
Cavity:
Cartridge installation torque:
  • 5.4 to 6.8 N-m (4 to 5 ft-lb)
Orientation restriction:
  • None
Seal kit:
  • SK04-B2X-B SK04-B2X-M X = seal option
TR04-B20_Order(2022-02-24)

Model Options

TR04-B20-H-J-R/S
H Line Body
CODE
DESCRIPTION
0
No Body
J Seal
CODE
DESCRIPTION
N
Buna-N
V
Fluorocarbon
P
Polyurethane
U
PPDI Urethane
R Spring
CODE
DESCRIPTION
10
68.9 to 75.8 bar (1000 to 1100 psi) Spring Range
20
137.9 to 144.8 bar (2000 to 2100 psi) Spring Range
30
206.8 to 213.7 bar (3000 to 3100 psi) Spring Range
40
275.8 to 286.1 bar (4000 to 4150 psi) Spring Range
52
358.5 to 368.9 bar (5200 to 5350 psi) Spring Range
60
413.7 to 424 bar (6000 to 6150 psi) Spring Range
S Setting
CODE
DESCRIPTION
MXXX
Spring Setting in XXX bar
XX
Spring Setting in XX psi (x 100)