DESCRIPTION

A proportional solenoid-operated, 2-way, poppet-type, normally open, screw-in

hydraulic cartridge valve for low-leakage blocking and load-holding applications

OPERATION

When de-energized, the SP12-21 allows flow from 2 to 1. When the valve is partially

energized, the valve begins to throttle the flow from 2 to 1. When fully energized, the

poppet closes on the seat, blocking flow from 2 to 1. Flow from 1 to 2 will occur when

hydraulic pressure exceeds the solenoid force.

Note: If low voltage is expected on the machine, 12 or 24 volt systems will

require the use of 10 volt or 20 volt coils respectively. See “SP Valves and Coil

Operating Parameters,” page 2.002.1.

FEATURES

• Industry-common cavity. • Efficient wet-armature construction.

• Continuous-duty rated coils. • Optional waterproof E-Coils rated up to IP69K.

RATINGS

Operating Pressure: 250 bar (3625 psi)

Operating Voltage: See Performance Chart

Minimum Operating Dither/Pulse Frequency: 70 Hz

Flow: 0 to 200 lpm (0 to 53 gpm)

Max. Internal Leakage: 5 drops per minute 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: VC12-2; See page 9.112.1; Cavity Tool: CT12-2XX; See page 8.600.1

Seal Kit: SK12-2X-T; See page 8.650.1

Coil Nut: Part No. 7004400

ELECTRO-PROPORTIONAL VALVES—FLOW CONTROL

SP12-21 Poppet, 2-Way, Normally Open

SYMBOL

USASI/ISO:

2.022.1

PERFORMANCE

Note: Electronic Controller is required to ramp current.

HYDRAFORCE

.com

17.2/250

51.7/750

34.4/500

68.9/1000

137.9/2000

120.7/1750

103.4/1500

86.2/1250

155.1/2250

172.4/2500

189.6/2750

206.8/3000

224.1/3250

241.3/3500

75.7

37.9

113.6

151.4

227.1

189.3

FLOW lpm/gpm

PRESSURE bar/psi

TYPICAL PRESSURE RESPONSE

with 12 VDC Coil

500 mA

350 mA

750 mA

De-Energized

2 to 1

18.9/5

37.9/10

56.8/15

75.7/20

94.6/25

189.3/50

170.3/45

151.4/40

132.5/35

113.6/30

208.2/55

227.1/60

0.1 0.2

30 40 50 60 70 80 90 100

0.40.3 0.5 0.8 0.9

1.0 1.1 1.20.6 0.7

Amps:

% of Max. Control Current:

FLOW lpm/gpm

FLOW vs. CURRENT with 12 VDC D-Coil

Consult factory for E-Coil

PRESSURE DROP

A: 100 mA: 160 bar/2320 psi

1200 mA: 228 bar/3300 psi

B: 100 mA: 79.3 bar/1150 psi

1200 mA: 104 bar/1500 psi

C: 100 mA: 16.6 bar/240 psi

1200 mA: 35 bar/500 psi

D: 100 mA: 10.3 bar/150 psi

1200 mA: 13.8 bar/200 psi

Recommended Electronic Controllers:

See page 2.001.1 or our Electronics catalog.

Blue rectangles are links to other catalog pages.

SP12-21

2.022.2

DIMENSIONS

MATERIALS

Cartridge: Weight: 0.27 kg.

(0.60 lbs.) Steel with hardened

work surfaces. Zinc-plated

exposed surfaces Buna N

O-rings and back-ups standard.

Standard Ported Body: Weight:

0.57 kg. (1.25 lbs.) Anodized

high-strength 6061 T6 aluminum

alloy, rated to 207 bar (3000 psi).

Ductile iron bodies available;

dimensions may differ.

See page 8.012.1.

Standard D-Coil: Weight: 0.27 kg.

(0.60 lbs.) Unitized thermoplas-

tic encapsulated, Class H high

temperature magnetwire.

See page 3.200.1

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

Perfect wound, fully encapsu-

lated with rugged external metal

shell. Rated up to IP69K with

integral connectors.

See page 3.400.1

SP12-21__ - __ __ __ - __ - __ __ __ __ __

TO ORDER

Porting

Cartridge Only 0

SAE 10 10T

SAE 12 12T

SAE 16 16T

3/4 in. BSP* 6B

1 in. BSP* 8B

*BSP Body; U.K. Mfr. Only

Termination (VDC)

Std. D-Coil

DS Dual Spades

DG DIN 43650

DL Leadwires (2)

DL/W Leads w/Weatherpak

Connectors

DR Deutsch DT04-2P

Termination (VDC)

E-Coil

ER Deutsch DT04-2P

(IP69K Rated)

EY Metri-Pack

® 150.2A

(IP69K Rated)

Coils with internal diode are

available. Consult factory.

HYDRAFORCE

.com

Voltage

0 Less Coil**

10 10 VDC

†

12 12 VDC

20 20 VDC

†

24 24 VDC

**Includes Coil Nut

†

10 VDC and 20 VDC

coils should be used

for most continuous-

duty applications.

Consult factory.

TORQUE

33–37 ft-lbs

(44.9–50.3 Nm)

max.

1.62

41.1

1.84

DIA.

46.7

E-Coil

View

D-Coil

View

TORQUE

4–5 ft-lb

5.4–6.8 Nm

max.

3.98

101.0

3.36

85.4

0.75

ACROSS

19.1

FLATS

Manual

Override

Seals

N Buna N (Std.)

V Fluorocarbon

P Polyurethane

For Manual Override details

see page 1.001.1

Option

None

(Blank)

Metering A

Screen S

Manual Override P

Blue rectangles are links to other catalog pages.