Norgren 134-4 User Manual
Norgren GT Development Height Control Seat
Valves adjust seat height on air suspension seats.
GT provides these valves in push-pull, paddle, and
rocker configurations, with the option of threaded
ports, push-to-connect, or barb fittings.
Part Number 134-4
Actuation
Leakage
Pressure Rating
Porting
Installation Torque
Part Number
Push: A pplies inlet pressure to outlet port.
Pull: Vents outlet port .
Valve cannot leak to outlet port in "OFF" position.
200 psig
Outlet port configuration options: 1/8"-27 nptf female thread
15 ft. lbs. max.
134-4
Height Control Seat Valve
3013
251-12 A
134-4
Part Number's 251-12B and 251-21A
Actuation
Leakage
Pressure Rating
Porting
Installation Torque
Part Number
Push: A pplies inlet pressure to outlet port.
Pull: Vents outlet port .
Valve cannot leak to outlet port in "OFF" position.
200 psig
Outlet port configuration options: 1/8"-27 nptf female thread
15 ft. lbs. max.
251-12B permanent knob, Ports ¼” push to connect fittings
251-21A remov able knob, Ports 1/8 -27 NPT internal thread
Part Number 3013-4
Actuation
Assembly
Material
Compliance
3-way, dead center, paddle st yle actuation
Valve as sembly snaps into seat side panel from the out side
Black thermoplastic construction, mold tech. #11010 or equivalent
texture on all exposed surfaces.
All plastic component s meet FMVSS 302 flamabilit y requirements
Rev. 9/14 01
Our policy is one of continued research and development. We therefore reserve the right to amend,
without notice, the specifications given in this document.
© Norgren GT Development Corporaton, 2014
Height Control and Lumbar Seat Valve
Dimensions (Inches)
134-4 251-12B
NUT AND
LOCK WASHER
NUT & WASHER
1-1/8
PULL PUSH
5/8-18 UNF THD
3013-4
1-5/32
1.00
1/2
1.62
OUT
1/8-27
NPTF THDS
IN
1-7/16
3/8
0.75
1-1/8
PULL PUSH
5/8-18 UNF THD
KNOB
1-5/32
1/2
2-9/16
1/8 NPTF
TYP
INLET
1.0
OUTLET
3/8
1-3/8
3/8
251-12 A
1-5/32
1/2
1-0
1-25/32
55° ±5°
1/4
5/16
INFLATEDEFLATE
PULL PUSH
5/8-18 UNF THD
NUT AND
LOCK WASHER
1-3/4
INLET
1/8 NPTF
OUTLET
1/8 NPTF
3/8
1-3/8
3/8
2-3/16±1/16
1-5/8
DELIVERY
SEE DETAIL 1
BRASS BARB ACCEPTS
1/4" DOT TUBE 2PL
1.610 ±0.010
DETAIL PANEL HOLE
SCALE 1
SUPPLY
R 0.063 MAX.
0.890 ±0.010
Warning
Improper selection, misuse, age or malfunction of components used in
commercial vehicle systems can cause failure in various modes. The system
designer is warned to consider the failure modes of all component parts
used in commercial vehicle systems and to provide adequate safeguards to
prevent personal injury or damage to equipment or property in the event of
such failure modes. System designers and end users are cautioned to consult
instruction sheets and specifications available from the factory. The system
designer/end user is responsible for verifying that all requirements for the
application are met.
Warranty
The products described herein are warranted subject to seller’s Standard
Terms and Condition of Sale, available at seller’s website.
Our policy is one of continued research and development. We therefore reserve the right to amend,
without notice, the specifications given in this document.
© Norgren GT Development Corporaton, 2014
Rev. 9/1402
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