Valves - Solenoid on/off Controls - 2-position 2-way - Poppet Type - Normally Open - Restrictive Reverse Flow

SF08-21

SOLENOID CARTRIDGE VALVE POPPET, 2 WAY, NORMALLY OPEN HIGH PRESSURE

Overview

Description

A solenoid-operated, 2 way, piloted, poppet-type, normally open, screw in hydraulic cartridge valve designed for low leakage in higher pressure load-holding applications

Operation

When de-energized, the sf08-21xx allows flow from port 2 to port 1. Flow from port 1 to port 2 is severely restricted in this mode. When energized, the valves poppet closes on its seat, blocking flow from port 2 to port 1. In this mode the cartridge will allow port 1 to port 2 flow after overcoming the solenoid force (requires 50 to 150 psi [3,4 to 10,3 bar])

Features

  • Continuous-duty rated coil.
  • Corrosion-resistant plating.
  • Hardened seat for long life and low leakage.
  • Optional coil voltages and terminations.
  • Cartridges are voltage interchangeable.
  • Unitized, molded coil design.
  • Manual override option.
  • Optional waterproof E-Coils rated up to IP69K.
  • Industry common, compact size.

Ratings

Pressure Ratings
Pressure rating:
  • 350 bar (5000 psi)
Proof pressure:
  • 385.5 bar (5200 psi) Does not apply to MO Valve
Burst pressure:
  • 723.9 bar (10500 psi) Does not apply to MO. Valve
Flow Ratings
Flow rating:
  • See performance chart
Maximum internal leakage:
  • 3 drops/min Max at 350 bar (5000 psi)
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
Other Ratings
Corrosion protection:
  • Gsf08-21 960 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

Unit weight:
  • 0.09 kg (0.20 lb)
Internal wetted surface area:
  • 103.9 cm² (16.1 in²)

Electrical Parameters

Minimum pull in voltage:
  • 10.2 Vdc 12 Vdc coil

Performance

SF08-21_Perf_Chrt

Dimensions

SF08-21_Dim_Dwg

Materials

Materials

Cartridge: Weight: 0.09 kg (0.20 lb); Steel with hardened work surfaces. Zinc-plated exposed surfaces; Polyurethane cast O-rings and Fluorocarbon back-up standard.

Standard Ported Body: Weight: 0.54 kg (1.2 lb); Ductile iron standard, rated to 345 bar (5000 psi).

Standard D-Coil: Weight each: 0.11 kg (0.25 lb); Unitized thermoplastic encapsulated, Class H high temperature magnet wire.

E-Coil: Weight: 0.14 kg (0.3 lb); Perfect wound, fully encapsulated with rugged external metal shell; Rated up to IP69K with integral connectors.

Installation Specifications

Cavity:
Cartridge installation torque:
  • 25.8 to 28.5 N-m (19 to 21 ft-lb)
Coil nut torque:
  • 5.4 to 6.8 N-m (4 to 5 ft-lb)
Orientation restriction:
  • None

Accessories

Seal kit:
  • SK08-2HX-T X = n, V seal options
  • SK08-2P-T P seal option

Order Code

POSITION
CODE
DESCRIPTION
SF08-21EG-H-J-L
E
Manual Override
E
BLANK
NONE
E
HP
Momentary Push Override, Button with Protective Nut
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
4T
Aluminum SAE 4
H
6T
Aluminum SAE 6
H
8T
Aluminum SAE 8
H
6TD
Ductile Iron SAE 6
H
8TD
Ductile Iron SAE 8
H
2B
Aluminum BSPP 1/4" (2)
H
3B
Aluminum BSPP 3/8" (3)
H
3BD
Ductile Iron BSPP 3/8" (3)
J
Seal
J
N
Buna-N
J
V
Fluorocarbon
J
P
Polyurethane
L
Coil
L
0
No Coil
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, 18 inches long
L
10EL/36
10 VDC, E-Coil, Dual Lead Wires, 36 inches long
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, 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
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
12EG/Z
12 VDC, E-Coil, DIN 43650 with Zener Diode
L
12EJ
12 VDC, E-Coil, AMP Jr.
L
12EJ/Z
12 VDC, E-Coil, AMP Jr. with Zener Diode
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
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
20DG
20 VDC, D-Coil, DIN 43650
L
20DS
20 VDC, D-Coil, Dual Spade
L
20ER
20 VDC, E-Coil, Deutsch
L
20ER/Z
20 VDC, E-Coil, Deutsch with Zener Diode
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, 18 inches long
L
24DL/36
24 VDC, D-Coil, Dual Lead Wires, 36 inches long
L
24DL/W
24 VDC, D-Coil, Dual Lead Wires with Weatherpak
L
24DR
24 VDC, D-Coil, Deutsch
L
24DR/D
24 VDC, D-Coil, Deutsch with Diode
L
24DR/Z
24 VDC, D-Coil, Deutsch with Zener Diode
L
24DS
24 VDC, D-Coil, Dual Spade
L
24EG
24 VDC, E-Coil, DIN 43650
L
24EG/Z
24 VDC, E-Coil, DIN 43650 with Zener Diode
L
24EJ
24 VDC, E-Coil, AMP Jr.
L
24EL/D
24 VDC, E-Coil, Dual Lead Wires with 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
36DG
36 VDC, D-Coil, DIN 43650
L
36DS
36 VDC, D-Coil, Dual Spade
L
115AG
115 VAC, D-Coil, DIN 43650
L
115AP
115 VAC, D-Coil, 1/2" Conduit and Dual Lead Wires
L
230AG
230 VAC, D-Coil, DIN 43650
L
230AP
230 VAC, D-Coil, 1/2" Conduit and Dual Lead Wires
SF08-21_Order