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

Cartridge 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 ( coil) 12 Vdc

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
VC08-2
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
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
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
L
12EL
12 VDC, E-Coil, Dual Lead Wires
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
L
24DL
24 VDC, D-Coil, Dual Lead Wires
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
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