Valves - Electro-proportional Controls - Pressure Controls - Proportional Relief - Piloted - Pressure Falling with Current

TS08-27

PRESSURE RELIEVING PROPORTIONAL CARTRIDGE VALVE U.S. PATENT # 6,627,350 and 7,137,406

Overview

Description

TS08-27F is a pilot operated spool type, proportional pressure relieving valve. The regulated pressure is inversely proportional to the input electrical current

Operation

The TS08-27F blocks flow from port 1 to port 2 until sufficient pressure is present at port 1 to open the valve by overcoming the preset induced spring force. Applying current to the coil decreases the induced spring force, thereby reducing the valve setting

Features

  • Several adjustable pressure settings plus factory preset fixed pressure model.
  • Hardened parts for long life.
  • 12 and 24 volt coils standard.
  • Industry common cavity.
  • Optional waterproof E-coils rated up to IP69K.

Ratings

Pressure Ratings
Pressure rating
241 bar (3500 psi) Port 1
Proof pressure
413.7 bar (6000 psi) Port 1
206.8 bar (3000 psi) Port 2
Burst pressure
814 bar (11800 psi) At all ports
Pressure setting
41.4 to 248.2 bar (600 to 3600 psi)
Flow Ratings
Flow rating
26.5 lpm (7 gpm)
Hysteresis per cent
3.2 % (a)
3.0 % (a)
4.8 % (c)
Temperature Ratings
Maximum 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

Operating Parameters

Fluids
Mineral based or synthetic with lubricating properties
Fluid viscosity range
7.4 to 420 cSt
Maximum operating contamination level
18/16/13 per ISO 4406

Properties

Cartridge weight
0.15 kg (0.33 lb)
Internal wetted surface area
124 cm² (19.2 in²)

Electrical Parameters

Dither PWM frequency
200 Hz
Valve inductance
134 mH D-series coil 12 V
500 mH D-series coil 24 V
139 mH E-series coil 12 V
560 mH E-series coil 24 V
Maximum control current
1.15 A D-series coil 12 V
0.57 A D-series coil 24 V
1.20 A E-series coil 12 V
0.60 A E-series coil 24 V

Performance

TS08-27_Perf_Chrt1 TS08-27_Perf_Chrt2

Dimensions

TS08-27_Dim_Dwg

Materials

Materials

Cartridge: Weight: 0.15 kg (0.33 lb); Steel with hardened work surfaces. Zinc-plated exposed surfaces; Buna N O-rings and polyester elastomer back-ups standard.

Standard Ported Body: Weight: 0.16 kg (0.35 lb); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi); Ductile iron bodies available; dimensions may differ.

EHPR D-Coil: Weight each: 0.11 kg (0.25 lb); Unitized thermoplastic encapsulated, Class H high temperature magnet wire.

EHPR E-Coil: Weight: 0.14 kg (0.3 lb); Perfect wound, fully encapsulated with rugged external metal shell; Rated up to IP69K with integral connectors.

Installation Specifications

Cavity
VC08-2
Cartridge installation torque
25.8 to 28.5 N-m (19 to 21 ft-lb) Per 7708xxx
Coil nut torque
5.4 to 6.8 N-m (4 to 5 ft-lb)
Orientation restriction
None

Accessories

Order code

POSITION
CODE
DESCRIPTION
TS08-27-H-J-L
D
Regulating Pressure Range
D
A
206.8 to 6.9 bar (3000 to 100 psi) Pressure Range
D
B
137.9 to 6.9 bar (2000 to 100 psi) Pressure Range
D
C
68.9 to 6.9 bar (1000 to 100 psi) Pressure Range
D
F
248.2 to 41.1 bar (3600 to 600 psi) Crack Pressure at Zero Current
H
Line Body
H
0
No Body
H
4T
Aluminum SAE 4
H
6T
Aluminum SAE 6
H
8T
Aluminum SAE 8
H
6TD
Ductile Iron SAE 6
H
8TD
Ductile Iron SAE 8
H
2B
Aluminum BSPP 1/4" (2)
H
3B
Aluminum BSPP 3/8" (3)
H
3BD
Ductile Iron BSPP 3/8" (3)
J
Seal
J
N
Buna-N
J
V
Fluorocarbon
J
P
Polyurethane
J
U
PPDI Urethane
L
Coil
L
0
No Coil
L
12DG
12 VDC, D-Coil, DIN 43650
L
12ER
12 VDC, E-Coil, Deutsch
L
12EY
12 VDC, E-Coil, Metri-Pack 150
L
24DG
24 VDC, D-Coil, DIN 43650
L
24DL
24 VDC, D-Coil, Dual Lead Wires
L
24DS
24 VDC, D-Coil, Dual Spade
L
24ER
24 VDC, E-Coil, Deutsch
TS08-27_Order