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.
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
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
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
Unit weight:
  • 0.27 kg (0.60 lb)
Internal wetted surface area:
  • 210 cm² (32.5 in²)
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
SP12-21_Perf_Chrt
SP12-21_Dim_Dwg

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.

Cavity:
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
SP12-21_Order
POSITION
CODE
DESCRIPTION
SP12-21DEG-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
10DS
10 VDC, D-Coil, Dual Spade
L
10EL
10 VDC, E-Coil, Dual Lead Wires
L
10ER
10 VDC, E-Coil, Deutsch
L
12DG
12 VDC, D-Coil, DIN 43650
L
12DL
12 VDC, D-Coil, Dual Lead Wires, 18 inches long
L
12DL/36
12 VDC, D-Coil, Dual Lead Wires, 36 inches long
L
12DL/W
12 VDC, D-Coil, Dual Lead Wires with Weatherpak
L
12DR
12 VDC, D-Coil, Deutsch
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, 18 inches long
L
12EL/36
12 VDC, E-Coil, Dual Lead Wires, 36 inches long
L
12ER
12 VDC, E-Coil, Deutsch
L
12EY
12 VDC, E-Coil, Metri-Pack 150
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
24DP
24 VDC, D-Coil, 1/2" Conduit and Dual Lead Wires
L
24DR
24 VDC, D-Coil, Deutsch
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, 18 inches long
L
24EL/36
24 VDC, E-Coil, Dual Lead Wires, 36 inches long
L
24ER
24 VDC, E-Coil, Deutsch
L
24EY
24 VDC, E-Coil, Metri-Pack 150
L
36DS
36 VDC, D-Coil, Dual Spade