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

Ratings

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)

Operating Parameters

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

Properties

Unit weight
0.09 kg (0.20 lb)
Internal wetted surface area
19 cm² (2.95 in²)

Dimensions

TR04-B20_Dim

Installation Specifications

Cavity
VC04-B2
Cartridge installation torque
5.4 to 6.8 N-m (4 to 5 ft-lb)
Orientation restriction
None

Accessories

Seal kit
SK04-B2X-B SK04-B2X-M X = seal option

Order Code

POSITION
CODE
DESCRIPTION
TR04-B20-H-J-R/S
H
Line Body
H
0
No Body
J
Seal
J
N
Buna-N
J
V
Fluorocarbon
J
P
Polyurethane
J
U
PPDI Urethane
R
Spring
R
10
68.9 to 75.8 bar (1000 to 1100 psi) Spring Range
R
20
137.9 to 144.8 bar (2000 to 2100 psi) Spring Range
R
30
206.8 to 213.7 bar (3000 to 3100 psi) Spring Range
R
40
275.8 to 286.1 bar (4000 to 4150 psi) Spring Range
R
52
358.5 to 368.9 bar (5200 to 5350 psi) Spring Range
R
60
413.7 to 424 bar (6000 to 6150 psi) Spring Range
S
Setting
S
MXXX
Spring Setting in XXX bar
S
XX
Spring Setting in XX psi (x 100)
TR04-B20_Order