Electro-Proportional Valves — Pressure Control

TS10-27 — Proportional Pressure Control, Pilot-Operated Relief
  Selection guide - similar valves.
  PDF file of this page.
  STP file for TS12-27.
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TS10-27 Valve
U.S. Patent
6,267,350 & 7,137,406

TS08-27 Valve symbol
A screw-in, cartridge-style, pilot-operated, hydraulic pressure relief valve, which can
be infinitely adjusted across a prescribed range using a variable electric input. Pressure
output is inversely proportional to DC current input. This valve is intended for use as a
pressure limiting device in demanding applications, and is ideal for hydraulic fan drive applications.

The TS10-27 blocks flow from 1 to 2 until sufficient pressure is present at 1 to open the
valve by overcoming the preset induced spring force. With no current applied, the valve
will relieve at ±50 psi of the spring maximum. Applying current to the coil reduces the induced
spring force thereby reducing the valve setting. The regulated pressure is inversely proportional
to the input electrical current.

• 12 and 24 volt coils standard.
• Industry common cavity.
• Corrosion-resistant, 1000-hour-salt-spray-rated protective coating standard.
• Adjustable or fixed relief pressure settings.
• Higher pressure 330.9 bar (4800 psi) factory-set model F available.

Pressure Rating: 275 bar (4000 psi) at Port 1;TS10-27F: 330.0 bar (4800 psi)
Proof Pressure: 344.7 bar (5000 psi) at Port 1; 206.8 bar (3000 psi) at Port 2;
   TS10-27F: 413.7 bar (6000 psi) at Port 1 and 206.8 bar (3000 psi) at Port 2
Burst Pressure: 814 bar (11,800 psi) at all ports
Relief Pressure Range at Zero Current - A: 206.8-6.9 bar (3000-100 psi);
   B: 138-6.9 bar (2000-100 psi); C: 69-6.9 bar (1000-100 psi); F: 275.8 to 27.6 bar (4000 to 400 psi)
Electrical Parameters:
COIL *Typical Max. Current
(amp) at 0 gpm
Typical Resistance ±5%
at 20°C (ohms)
Typical Apparent Inductance (mH)
12 VDC 24 VDC 12 VDC 24 VDC 12 VDC 24 VDC
D-Coil 1.10 amp 0.55 amp 6.7 ohms ±5% 28.8 ohms ±5% 134 mH 500 mH
E-Coil 1.20 amp 0.55 amp 7.32 ohms ±5% 29.3 ohms ±5% 139 mH 560 mH
Relief Pressure Range: from zero to max. control current; minimum pressure is factory-adjusted:
   Range A: 206.8 to 6.9 bar (3000 to 100 psi); Range B: 138 to 6.9 bar (2000 to 100 psi);
   Range C: 69 to 6.9 bar (1000 to 100 psi); Range F: Factory Set: 275.8 to 27.6 bar (4000 to 400 psi)
   *Consult factory for detailed current range for particular pressure setting.
    Note: Tank port pressure is additive to valve setting.
Rated Flow: 75.7 lpm (20 gpm); ΔP = 20.7 to 24.1 bar (300 to 350 psi) cartridge only,
   1 to 2 coil energized
Hysteresis: (200 Hz) A: 3.2% B: 3.0% C: 4.8% F: 4%
Pressure Rise:
A: 0.48 bar/lpm (26.5 psi/gpm); B: 0.36 bar/lpm (20 psi/gpm);
C: 0.46 bar/lpm (25 psi/gpm) F: 1.86 bar/lpm (27 psi/gpm)
Flow Path: Free Flow: 1 to 2 coil energized; Relieving: 1 to 2 coil de-energized
Temperature: -40° to 100°C (-40° to 212°F) with Buna seals;
   -26° to 204°C (-15° to 400°F) with fluorocarbon seals;
   -54° to 107°C (-65° to 225°F) with polyurethane seals
Filtration: See page 9.010.1
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of
7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page 9.060.1
Installation: When possible, the valve should be mounted below the reservoir oil level.
This will maintain oil in the armature preventing trapped air instability.
If this is not feasible, mount the valve horizontally for best results; See page 9.020.1
Cavity: VC10-2; See page 9.110.1_2w
Cavity Tool: CT10-2xx; See page 8.600.1
Seal Kit: SK10-2x-B; See page 8.650.1
Coil Nut: 4540550

See model EFDR2 Multi-Input Fan Drive Controller, or EVDR-Type Controller Selection Guide,
or for other Electronic Controllers, see page 2.001.1_pdf




TS10-27 Valve Performance Chart


TS10-27 Performance curves



TS10-27 Valve Dimensions



Cartridge: Weight: 0.18 kg (0.4 lb);
Steel with hardened work surfaces.
Zinc-plated exposed surfaces; Buna N
O-rings and polyester elastomer back-ups
standard. Optional polyurethane seals with
fluorocarbon back-up recommended for
pressures over 240 bar (3500 psi).

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.
See page 8.010.1_2w.

D-Coil: Weight each: 0.27 kg (0.6 lb);
Unitized thermoplastic encapsulated,
Class H high temperature magnetwire.
See page 3.200.1_10-size.

E-Coil: Weight: 0.41 kg (0.9 lb);
Perfect wound, fully encapsulated with
rugged external metal shell; Rated up
to IP69K with integral connectors.
See page 3.400.1_10-size.



TS10-27 Ordering Chart