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.
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 % (B)
  • 4.8 % (C)
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
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
Unit weight:
  • 0.15 kg (0.33 lb)
Internal wetted surface area:
  • 124 cm² (19.2 in²)
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
TS08-27_Perf_Chrt1 TS08-27_Perf_Chrt2
TS08-27_Dim_Dwg

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.

Cavity:
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
TS08-27_Order
POSITION
CODE
DESCRIPTION
TS08-27D-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