Valves - Electro-proportional Controls - Non-Compensated - 2-Position 2-Way - Normally Open - Poppet Type - Restrictive Reverse Flow

SP12-21

SOLENOID PROPORTIONAL VALVE POPPET, 2 PORT, NORMALLY OPEN

Overview

Description

A solenoid-operated, 2-port, normally open, poppet-type, proportional, screw-in hydraulic cartridge valve, designed for low leakage blocking and load-holding applications

Operation

When energized, the SP12-21 acts as a check valve, allowing flow from port 1 to port 2, while blocking flow from port 2 to port 1. When de-energized, the poppet lifts to open the port 2 to port 1 flow path

Features

  • Continuous-duty rated coil.
  • Efficient wet-armature construction.
  • Optional waterproof E-Coils rated up to IP69K.
  • Industry common cavity.

Ratings

Pressure Ratings
Pressure rating
250 bar (3625 psi) Per NFPA t2.6.1 r2-2000 using 99.9 assurance and 90% verification levels
Proof pressure
344 bar (5000 psi)
Burst pressure
779 bar (11300 psi)
Flow Ratings
Flow rating
102 lpm (27 gpm) Based on pressure drop (see performance graphs) 34.4 lpm (500 gpm)
Maximum internal leakage
5 drops/min At 250 bar (3625 psi)
Hysteresis per cent
10 % Maximum, from 0 to 45% of max flow (at max control current)
5 % Maximum, from 45 to 100% of max flow (at max control current)
Temperature Ratings
Maximum 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

Operating Parameters

Fluids
Mineral based or synthetic hydraulic fluid with lubricating properties
Fluid viscosity range
7.4 to 420 cSt
Maximum operating contamination level
20/18/14 per ISO 4406

Properties

Cartridge weight
0.27 kg (0.60 lb)
Internal wetted surface area
210 cm² (32.5 in²)

Electrical Parameters

Valve inductance
197 mH
Maximum control current
0.85 A D-coil 12 Vdc
1.2 A Required to achieve rated leakage
Minimum control current
Less than threshold current
Threshold current
0.25 A D-coil (see performance graphs) 12 Vdc
Dither PWM frequency
100 to 400 Hz
Dither PWM frequency
100 to 400 Hz

Performance

SP12-21_Perf_Chrt

Dimensions

SP12-21_Dim_Dwg

Materials

Materials

Cartridge: Weight: 0.27 kg (0.60 lb); 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 lb); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi); Ductile iron bodies available; dimensions may differ.

Standard D-Coil: Weight each: 0.27 kg (0.60 lb); Unitized thermoplastic encapsulated, Class H high temperature magnet wire.

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.

Installation Specifications

Cavity
VC12-2
Cartridge installation torque
44.8 to 50.2 N-m (33 to 37 ft-lb)
Coil nut torque
6.8 to 9.5 N-m (5 to 7 ft-lb)
Orientation restriction
None

Accessories

Order code

POSITION
CODE
DESCRIPTION
SP12-21EG-H-J-L
D
Poppet Metering
D
A
Linear Poppet Metering
D
BLANK
Standard Poppet Metering
E
Manual Override
E
BLANK
NONE
E
K
Momentary Push Override, Knob
E
P
Momentary Push Override, Button
G
Screen
G
BLANK
NONE
G
S
100 Mesh Screen
H
Line Body
H
0
No Body
H
10T
Aluminum SAE 10
H
12T
Aluminum SAE 12
H
16T
Aluminum SAE 16
H
12TD
Ductile Iron SAE 12
H
16TD
Ductile Iron SAE 16
H
8B
Aluminum BSPP 1" (8)
H
8BD
Ductile Iron BSPP 1" (8)
J
Seal
J
N
Buna-N
J
V
Fluorocarbon
J
P
Polyurethane
J
U
PPDI Urethane
L
Coil
L
0
No Coil
L
10DG
10 VDC, D-Coil, DIN 43650
L
10DL
10 VDC, D-Coil, Dual Lead Wires
L
10DR/D
10 VDC, D-Coil, Deutsch with Diode
L
10DS
10 VDC, D-Coil, Dual Spade
L
10EL
10 VDC, E-Coil, Dual Lead Wires
L
10ER
10 VDC, E-Coil, Deutsch
L
10ER/Z
10 VDC, E-Coil, Deutsch with Zener Diode
L
12DG
12 VDC, D-Coil, DIN 43650
L
12DL
12 VDC, D-Coil, Dual Lead Wires
L
12DL
12 VDC, D-Coil, Dual Lead Wires
L
12DL/W
12 VDC, D-Coil, Dual Lead Wires with Weatherpak
L
12DL/W/D
12 VDC, D-Coil, Dual Lead Wires with Weatherpak with Diode
L
12DR
12 VDC, D-Coil, Deutsch
L
12DR/D
12 VDC, D-Coil, Deutsch with Diode
L
12DR/Z
12 VDC, D-Coil, Deutsch with Zener Diode
L
12DS
12 VDC, D-Coil, Dual Spade
L
12EG
12 VDC, E-Coil, DIN 43650
L
12EJ
12 VDC, E-Coil, AMP Jr.
L
12EL
12 VDC, E-Coil, Dual Lead Wires
L
12EL
12 VDC, E-Coil, Dual Lead Wires
L
12EL/W/Z
12 VDC, E-Coil, Dual Lead Wires with WeatherPak and Zener Diode
L
12EL/Z
12 VDC, E-Coil, Dual Lead Wires with Zener Diode
L
12ER
12 VDC, E-Coil, Deutsch
L
12ER/Z
12 VDC, E-Coil, Deutsch with Zener Diode
L
12EY
12 VDC, E-Coil, Metri-Pack 150
L
12EY/Z
12 VDC, E-Coil, Metri-Pack 150 with Zener Diode
L
20DR/D
20 VDC, D-Coil, Deutsch with Diode
L
20DS
20 VDC, D-Coil, Dual Spade
L
20ER
20 VDC, E-Coil, Deutsch
L
24AG
24 VDC, D-Coil, DIN 43650
L
24AP
24 VDC, D-Coil, 1/2" Conduit and Dual Lead Wires
L
24DG
24 VDC, D-Coil, DIN 43650
L
24DL
24 VDC, D-Coil, Dual Lead Wires
L
24DL/W
24 VDC, D-Coil, Dual Lead Wires with Weatherpak
L
24DL/W/D
24 VDC, D-Coil, Dual Lead Wires with Weatherpak with Diode
L
24DP
24 VDC, D-Coil, 1/2" Conduit and Dual Lead Wires
L
24DR
24 VDC, D-Coil, Deutsch
L
24DR/D
24 VDC, D-Coil, Deutsch with Diode
L
24DS
24 VDC, D-Coil, Dual Spade
L
24EG
24 VDC, E-Coil, DIN 43650
L
24EJ
24 VDC, E-Coil, AMP Jr.
L
24EL
24 VDC, E-Coil, Dual Lead Wires
L
24EL
24 VDC, E-Coil, Dual Lead Wires
L
24EL/W/Z
24 VDC, E-Coil, Dual Lead Wires with WeatherPak and Zener Diode
L
24ER
24 VDC, E-Coil, Deutsch
L
24ER/Z
24 VDC, E-Coil, Deutsch with Zener Diode
L
24EY
24 VDC, E-Coil, Metri-Pack 150
L
24EY/Z
24 VDC, E-Coil, Metri-Pack 150 with Zener Diode
L
36DS
36 VDC, D-Coil, Dual Spade
SP12-21_Order