SOLENOID VALVES

SV20-S38 Poppet-Type High-Flow Blocking, N.C.

DESCRIPTION

A solenoid-operated, normally closed, poppet-type, screw-in hydraulic cartridge valve,

designed to operate as a bidirectional load-holding or blocking valve in high ﬂ ow

circuits requiring low internal leakage.

OPERATION

When the SV20-S38 is de-energized, it functions as a check valve, allowing ﬂ ow from

➀ to ➁ while blocking ﬂ ow from ➁ to ➀. When energized, the poppet lifts to open the

➁ to ➀ ﬂ ow path while also allowing ﬂ ow from ➀ to ➁. Port ➂ is typically connected to

the reservoir.

Operation of Manual Override Feature: To override, push button in and twist

counterclockwise 180°. The internal spring will push the button out. In this position, the

valve may be only partially shifted. To assure full override shift, pull the button out to

its fullest extension and hold it in this position. To return to normal valve function, push

button in, twist clockwise 180° and release. Override will be detented in this position.

FEATURES

• Continuous-duty rated solenoid. • Manual override option.

• Hardened precision spool and cage. • Optional E-Coils rated up to IP69K.

• Optional coil voltages and terminations. • Unitized, molded coil design.

• Efﬁ cient wet-armature construction. • Industry common cavity.

• Cartridges are voltage interchangeable.

RATINGS

Operating Pressure: 293 bar (4250 psi)

Flow: 378 lpm (100 gpm) max.

Internal Leakage: 1 ml/minute (0.06 cu. in./minute) max. at 293 bar (4250 psi)

Temperature: -40 to 100°C with standard Buna seals

Coil Duty Rating: Continuous from 85% to 115% of nominal voltage

Initial Coil Current Draw at 20°C: Standard Coil: 1.2 amps at 12 VDC;

0.13 amps at 115 VAC (full wave rectiﬁ ed).

E-Coil: 1.4 amps at 12 VDC; 0.7 amps at 24 VDC

Minimum Pull-in Voltage: 85% of nominal at 207 bar (3000 psi)

Temperature: -40 to 120°C with standard Buna 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: No restrictions; See page 9.020.1

Cavity: VC20-S3, Variation "A"; See page 9.120.1

Cavity Tool: CT20-S3xx; See page 8.600.1

Seal Kit: SK20-S3x-MM; See page 8.650.1

Coil Nut: Part No. 7004400;

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

USASI/ISO:

SYMBOLS

1.392.1

PERFORMANCE (Cartridge Only)

HYDRAFORCE

.com

1.72/25

1.38/20

114

151

189

227

265

FLOW lpm/gpm

PRESSURE DROP bar/psi

303

~ to  and  De-energized – – – –

~ to  and  Energized at 1200 mA - - - - -

 to ~ and  Energized at 1200 mA ———

32 cSt/150 sus oil at 40nC

0.69/10

1.03/15

0.34/5

USASI/ISO:

Expanded:

Blue rectangles are links to other catalog pages.

Cartridge: Weight: 0.74 kg. (1.63 lbs.)

Steel with hardened work surfaces.

Zinc-plated exposed surfaces.

Buna N O-rings and polyester

elastomer back-ups standard.

Standard Ported Body: Weight:

1.65 kg. (3.65 lbs.) Anodized high-

strength 6061 T6 aluminum alloy,

rated to 207 bar (3000 psi).

Ductile iron bodies can be made

available; dimensions may differ.

See page 8.020.1.

Standard Coil: Weight: 0.11 kg.

(0.25 lbs.); Unitized thermoplastic

encapsulated, Class H high

temperature magnetwire.

See page 3.200.1

E-Coil: Weight: 0.14 kg. (0.3 lbs.);

Perfect wound, 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.

MATERIALS

SV20-S38

1.392.2

DIMENSIONS

HYDRAFORCE

.com

Option

None

(Blank)

Manual Override M

SV20-S38__ - __ __ __ - __ - __ __ __ __ __

TO ORDER

Seals

Buna N (Std.) N

Fluorocarbon V

Polyurethane P

Termination (VDC)

Std. Coil

DS Dual Spades

DG DIN 43650

DL Leadwires (2)

DL/W Leads w/Weatherpak

Connectors

DR Deutsch DT04-2P

Termination (VAC)

Std. Coil

AG DIN 43650

AP 1/2 in. Conduit

Termination (VDC)

E-Coil

ER Deutsch DT04-2P

(IP69K Rated)

EY Metri-Pack

® 150

(IP69K Rated)

Coils with internal diode are

available. Consult factory.

E-Coil

10 10 VDC

12 12 VDC

20 20 VDC

24 24 VDC

Voltage

Std. Coil

0 Less Coil**

10 10 VDC

†

12 12 VDC

24 24 VDC

36 36 VDC

48 48 VDC

24 24 VAC

115 115 VAC

230 230 VAC

**Includes Std. Coil Nut

†

DS, DW or DL

terminations only.

Porting

Cartridge Only 0

SAE 16 w/SAE 6

Pilot Port 16T

MILLIMETRE

INCH

2.48

63.0

2.59

65.7

4.00

101.6

1.87

47.5

3.23

82.0

3.03

76.9

0.19

4.8

4.38

111.3

5.00

127.0

0.81

20.6

3.62

91.9

0.34

8.6

2.00

50.8

1.88

47.6

ACROSS FLATS

TORQUE: 67 – 75 ft-lbs

(88.2 – 101.6 Nm)

E-Coil

View

Standard

Coil View

0.75

19.0

ACROSS FLATS

TORQUE: 4 – 5 ft-lbs

(5.4 – 6.8 Nm)

with Manual Override ‘M’

shown

Blue rectangles are links to other catalog pages.