TS12-36 Proportional Electric Reducing/Relieving

USASI/ISO:

SYMBOLS

2.901.1

PERFORMANCE

DESCRIPTION

A screw-in, cartridge-style, pilot-operated, spool-type reducing/relieving valve, which

can be inﬁ nitely adjusted across a prescribed range using a variable electric input.

Pressure output is proportional to DC current input. This valve is intended for use as

a pressure limiting device in demanding applications.

OPERATION

The TS12-36 allows ﬂ ow from ➁ to ➀ until pressure at ➀ equals the setting

determined by the coil current. Port

➂ is typically connected to the reservoir. If

external load increases the pressure at

➀ beyond this setting, pressure is relieved by

allowing ﬂ ow from

➀ to ➂. Minimum pressure at ➀ without any current is 100 psi.

If external circuitry allows the pressure at

➁ to fall below the pressure at ➀, the valve

will allow free ﬂ ow from

➀ to ➁ regardless of the setting of the valve or the amount of

current in the coil.

FEATURES

• 12 and 24 volt coils, standard or optional waterproofed.

RATINGS

Maximum Operating Pressure: Ports ➀ and ➁: 276 bar (4000 psi)

Maximum Tank Pressure: Port

➂: 68.9 bar (1000 psi); Note: Tank pressure is

additive to regulated pressure.

Reduced Pressure Range from Zero to Maximum Controlled Current:

A: 6.9–207 bar (100–3000 psi); B: 6.9–172 bar (100–2500 psi)

C: 6.9–138 bar (100–2000 psi)

Maximum Pilot Flow and Leakage: 0.49 lpm (0.13 gpm) with max. control current

and with inlet pressure at 276 bar (4000 psi) at regulated ﬂ ow of 3.8 lpm (1 gpm).

Flow Path: Free Flow:

➀ to ➂ coil de-energized; Reducing: ➁ to ➀ coil energized;

Relieving:

➀ to ➂ coil energized

Performance Life: Less than 5% change in the slope of the pressure vs current

characteristics over one million cycles.

Hysteresis: Less than 3%.

Temperature: -40 to 120°C (-40 to 250°F) with Buna N 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 Recommendation: 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.

Cavity: VC12-3; See page 9.110.1; Cavity Tool: CT12-3XX; See page 8.600.1

Seal Kit: SK12-3X-BM; See page 8.650.1

Coil Nut: Part No. 4526330;

For E-coils manufactured prior to 1-1-04, see page 3.400.1 for coil nut info.

ELECTRO-PROPORTIONAL VALVES—PRESSURE CONTROLS

Reducing Pressure vs. Current

for Flow @ 0 gpm; Port 2 to Port 1

with 200 Hz PWM Controller

PRESSURE (psi)

500

1000

1500

2000

2500

3000

3500

PERCENT OF MAXIMUM CONTROL CURRENT

0 102030405060708090 100

PRESSURE (bar)

100

150

200

225

175

125

FLOW (lpm)

FLOW (gpm)

0.02

0.04

0.06

0.08

0.10

0.1

0.2

0.3

PERCENT OF MAXIMUM CURRENT

Typical Pilot Flow & Leakage vs. Current

241 bar (3500 psi) Inlet Pressure

at 3.8–37.8 lpm (1–10 gpm)

with 200 Hz PWM Controller

25 50 75 100

Typical Pressure vs. Flow at Maximum Current for Pressure options A, B and C

Body & Line Relieving ΔP: 4.5 bar @ 189.3 lpm (65 psi @ 50 gpm)

Body & Line Reducing ΔP: 4.8 bar @ 189.3 lpm (70 psi @ 50 gpm)

Typical Pressure Drop vs. Flow (Cartridge & Body)

FLOW (gpm)

PRESSURE (psi)

PRESSURE (bar)

FLOW (lpm)

010203040

500

1000

1500

2000

2500

3000

3500

50 10 20 30 40 50

100

150

200

250

175

125

4080

120160 40 80 120 160

Relieving Pressure (Differential)

Relieving Pressure (Port 1 to Port 3)

Coil De-energized

Reducing Pressure (Port 2 to Port 1)

Coil Energized to 1.26 Amps

Reducing Pressure (Gauge)

Patent

Pending

HYDRAFORCE

.com

Blue rectangles are links to other catalog pages.

DIMENSIONS

TS12-36

2.901.2

Valve w/Internally Piloted Spool

MATERIALS

TO ORDER

TS12-36__ __ - __ - __ - __ __ __ __

Maximum

Reducing

Pressure

207 bar (3000 psi) A

172 bar (2500 psi) B

138 bar (2000 psi) C

Porting

Cartridge Only 0

SAE 8 8T

SAE 10 10T

SAE 12 12T

1/2 in. BSP* 4B

3/4 in. BSP* 6B

Seals

N Buna N (Std.)

V Fluorocarbon

Voltage

0 Less Coil*

12 12 VDC

24 24 VDC

*BSP Body; U.K. Mfr. Only

1.48

37.6

2.90

73.5

1.25

31.8

ACROSS FLATS

0.75

19.1

ACROSS FLATS

MANUAL OVERRIDE

OPTION

TORQUE

33–37 ft-lbs

(45–50 Nm)

max.

1.73

44.0

TORQUE

7–10 ft-lbs

(9.5–13.6 Nm)

max.

COIL MUST BE

INSTALLED WITH

LETTERING UP

INCH

MILLIMETRE

2.78

70.6

2.98

75.6

1.62

41.1

E-Coil

View

Standard

Coil View

53.8

82.6

101.6

29.2

8.6

91.9

4.8

101.6

50.8

50.3

1.15

3.62

0.19

4.00

3.25

2.12

4.00

2.00

1.98

0.34

1.84 (46.7)

DIA.

Cartridge: Weight: 0.30 kg. (0.66 lbs.) Steel

with hardened work surfaces. Zinc-plated

exposed surfaces. Buna N O-rings and

polyester elastomer back-ups standard.

Optional polyurethane seals with

ﬂ uorocarbon back-up recommended for

pressures over 240 bar (3500 psi).

Standard Ported Body: Weight: 0.23 kg.

(0.50 lbs.); Anodized high-strength

6061 T6 aluminum alloy, rated to 207 bar

(3000 psi). Ductile iron bodies available;

dimensions may differ; consult factory.

See page 8.010.1

Standard Coil: Weight: 0.32 kg. (0.7 lbs.)

Unitized thermoplastic encapsulated,

Class H high temperature magnet-wire.

See page 3.200.1

E-Coil: Weight: 0.41 kg. (0.9 lbs.) Fully

encapsulated with rugged external metal

shell. Rated up to IP69K with integral

connectors. Note: See page 3.400.1 for

all E-Coil retroﬁ t applications.

Option

None

(Blank)

Manual Override M

PERFORMANCE (cont’d)

Typical Frequency Response Curves

Flow at 0 gpm; Inlet Pressure at 241 bar (3500 psi)

Pressure Range at 50% ±40%

GAIN (dB)

FREQUENCY (Hz)

0.1

345 10203060

-25

-20

-15

-10

-5

-45

-90

-135

-180

PHASE (degrees)

PHASE

AMPLITUDE

Termination Std. Coil

DS Dual Spades

DG DIN 43650

DL Leadwires (2)

DL/W Leads w/Weatherpak

Connectors

DR Deutsch DT04-2P

Termination E-Coil

ER Deutsch DT04-2P

(IP69K Rated)

EY Metri-Pack

® 150

(IP69K Rated)

Coils with internal diode are

available. Consult factory.

* Includes

Coil nut.

Patent Pending

HYDRAFORCE

.com

Typical Step Response Curve

Flow at 0 gpm, Inlet Pressure at 241 bar (3500 psi)

Voltage Set to Produce 1.1 amps

at Steady State Test Coil (12 VDC)

PRESSURE (psi)

2500

2000

1500

1000

500

3000

3500

4000

TIME (ms)

0 10 20 30 40 50 60 0 10 20 30 40

CURRENT (mA)

500

1000

1500

RESPONSE

CURRENT INPUT

Recommended Electronic Controllers:

See page 2.001.1 or our Electronics catalog.

Blue rectangles are links to other catalog pages.