Valves - Solenoid on/off Controls - 2-position 2-way - Poppet Type - Normally Closed - Free Reverse Flow

SF08-28

SOLENOID CARTRIDGE VALVE POPPET, 2 PORT, NORMALLY CLOSED

Overview

Desctiption

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

  • Improved pressure drop
  • 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
  • Improved closure performance
  • Tested to 2 million cycles
  • Less than 5 drops/min leakage maintained after endurance test

Ratings

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)

Operating Parameters

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

Properties

Corrosion protection
960 hr salt spray per ASTM B117
Unit weight
0.18 kg (0.39 lb)
Internal wetted surface area
85 cm² (18.6 in²)

Performance

SF08-28_PERF1 SF08-28_PERF2 SF08-28_PERF3

Dimensions

SF08-28_DIM

Installation Specifications

Cavity
VC08-2
Cartridge 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

Accessories

Order Code

POSITION
CODE
DESCRIPTION
SF08-28EG-H-J-L
E
Manual Override
E
BLANK
NONE
E
P
Push button
E
K
Knob
E
T
Threaded adjustment
G
Screen
G
BLANK
NONE
G
S
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
00
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
SF08-28_ORDER