Cartridge Valves - Solenoid Valves - 2-Position 2-Way - Poppet Type - Normally Closed - Free Reverse Flow

SF08-28

SOLENOID CARTRIDGE VALVE POPPET, 2 PORT, NORMALLY CLOSED

Overview

Description

A solenoid-operated, 2 port, normally closed, direct-acting, poppet-type, screw in hydraulic cartridge valve, designed for low-leakage blocking and load-holding applications to operate as a bidirectional blocking valve in low flow circuits.

Operation

When de-energized, the SF08-28 blocks flow in both directions. When energized, the poppet shifts to open the bidirectional flow path.

Manual Override Operation

Emergency use only! Not for continuous duty operation. to activate the "T" manual override: turn the knurled adjustment knob clockwise until the valve opens. To deactivate: turn the adjustment knob counterclockwise until it stops. To activate the "P" and "K" manual override: push until the valve opens. To deactivate: remove the applied force from the manual override.

Features

  • Flow rating 11.3 lpm (3 gpm), peak flow up to 39 lpm (10.4 gpm)
  • Pushbutton (P), Knob (K), and Threaded (T) manual override options
  • Tested to 2 million cycles
  • Less than 5 drops/min leakage maintained after endurance test
Pressure Ratings
Pressure rating:
  • 345 bar (5000 psi)
Proof pressure:
  • 690 bar (10,000 psi)
Burst pressure:
  • 1379 bar (20,000 psi)
Flow Ratings
Flow rating:
  • 11.3 lpm (3 gpm) See performance graph for shifting limits.
Maximum internal leakage:
  • 5 drops/min At 345 bar (5000 psi)
Temperature Ratings
Operating fluid temperature:
  • -40 to 100 °C (-40 to 212 °F Buna N Seals
  • -26 to 204 °C (-15 to 400 °F Fluorocarbon Seals
  • --54 to 107 °C (-54 to 225 °F Polyurethane Seals
Storage temperature:
  • -40 to 70 °C (-40 to 160 °F)
Ambient temperature:
  • -40 to 70 °C (-40 to 160 °F)
Fluids
Compatible fluids:
  • Mineral based or synthetic hydraulic fluid with lubricating properties
Fluid viscosity range:
  • 7.4 to 420 cSt
Maximum operating contamination level:
  • 18/16/13 per ISO 4406
Corrosion protection:
  • 12 hr salt spray per ASTM B 633
Unit weight:
  • 0.18 kg (0.39 lb)
Internal wetted surface area:
  • 85 cm² (18.6 in²)
SF08-28_PERF1(2022-02-24) SF08-28_PERF2(2022-02-24) SF08-28_PERF3(2022-02-24)
SF08-28_DIM(2022-02-24)
Cavity:
Cartridge installation torque:
  • 25.8 to 28.6 N-m (19 to 21 ft-lb)
Coil nut torque:
  • 5.4 to 6.8 N-m (4 to 5 ft-lb)
Orientation restrictions:
  • None
SF08-28_ORDER(2022-02-24)

Model Options

SF08-28EG-H-J-L
E Manual Override
CODE
DESCRIPTION
BLANK
NONE
P
Push button
K
Knob
T
Threaded adjustment
G Screen
CODE
DESCRIPTION
BLANK
NONE
S
Screen
H Line Body
CODE
DESCRIPTION
0
No Body
4T
Aluminum SAE 4
6T
Aluminum SAE 6
8T
Aluminum SAE 8
6TD
Ductile Iron SAE 6
8TD
Ductile Iron SAE 8
2B
Aluminum BSPP 1/4" (2)
3B
Aluminum BSPP 3/8" (3)
3BD
Ductile Iron BSPP 3/8" (3)
J Seal
CODE
DESCRIPTION
N
Buna-N
V
Fluorocarbon
P
Polyurethane
L Coil
CODE
DESCRIPTION
00
No Coil
10DL
10 VDC, D-Coil, Dual Lead Wires
10DR/D
10 VDC, D-Coil, Deutsch with Diode
10DS
10 VDC, D-Coil, Dual Spade
10EL
10 VDC, E-Coil, Dual Lead Wires, 18 inches long
10EL/36
10 VDC, E-Coil, Dual Lead Wires, 36 inches long
10ER
10 VDC, E-Coil, Deutsch
10ER/Z
10 VDC, E-Coil, Deutsch with Zener Diode
12DG
12 VDC, D-Coil, DIN 43650
12DL
12 VDC, D-Coil, Dual Lead Wires, 18 inches long
12DL/36
12 VDC, D-Coil, Dual Lead Wires, 36 inches long
12DL/W
12 VDC, D-Coil, Dual Lead Wires with Weatherpak
12DL/W/D
12 VDC, D-Coil, Dual Lead Wires with Weatherpak with Diode
12DR
12 VDC, D-Coil, Deutsch
12DR/D
12 VDC, D-Coil, Deutsch with Diode
12DR/Z
12 VDC, D-Coil, Deutsch with Zener Diode
12DS
12 VDC, D-Coil, Dual Spade
12EG
12 VDC, E-Coil, DIN 43650
12EG/Z
12 VDC, E-Coil, DIN 43650 with Zener Diode
12EJ
12 VDC, E-Coil, AMP Jr.
12EJ/Z
12 VDC, E-Coil, AMP Jr. with Zener Diode
12EL
12 VDC, E-Coil, Dual Lead Wires, 18 inches long
12EL/36
12 VDC, E-Coil, Dual Lead Wires, 36 inches long
12EL/Z
12 VDC, E-Coil, Dual Lead Wires with Zener Diode
12ER
12 VDC, E-Coil, Deutsch
12ER/Z
12 VDC, E-Coil, Deutsch with Zener Diode
12EY
12 VDC, E-Coil, Metri-Pack 150
12EY/Z
12 VDC, E-Coil, Metri-Pack 150 with Zener Diode
20DG
20 VDC, D-Coil, DIN 43650
20DS
20 VDC, D-Coil, Dual Spade
20ER
20 VDC, E-Coil, Deutsch
20ER/Z
20 VDC, E-Coil, Deutsch with Zener Diode
24AG
24 VDC, D-Coil, DIN 43650
24AP
24 VDC, D-Coil, 1/2" Conduit and Dual Lead Wires
24DG
24 VDC, D-Coil, DIN 43650
24DL
24 VDC, D-Coil, Dual Lead Wires, 18 inches long
24DL/36
24 VDC, D-Coil, Dual Lead Wires, 36 inches long
24DL/W
24 VDC, D-Coil, Dual Lead Wires with Weatherpak
24DR
24 VDC, D-Coil, Deutsch
24DR/D
24 VDC, D-Coil, Deutsch with Diode
24DR/Z
24 VDC, D-Coil, Deutsch with Zener Diode
24DS
24 VDC, D-Coil, Dual Spade
24EG
24 VDC, E-Coil, DIN 43650
24EG/Z
24 VDC, E-Coil, DIN 43650 with Zener Diode
24EJ
24 VDC, E-Coil, AMP Jr.
24EL/D
24 VDC, E-Coil, Dual Lead Wires with Diode
24ER
24 VDC, E-Coil, Deutsch
24ER/Z
24 VDC, E-Coil, Deutsch with Zener Diode
24EY
24 VDC, E-Coil, Metri-Pack 150
24EY/Z
24 VDC, E-Coil, Metri-Pack 150 with Zener Diode
36DG
36 VDC, D-Coil, DIN 43650
36DS
36 VDC, D-Coil, Dual Spade
115AG
115 VAC, D-Coil, DIN 43650
115AP
115 VAC, D-Coil, 1/2" Conduit and Dual Lead Wires
230AG
230 VAC, D-Coil, DIN 43650
230AP
230 VAC, D-Coil, 1/2" Conduit and Dual Lead Wires