VALVE-IN-HEAD ® CYLINDERS
ALLENAIR VALVE-IN-HEAD:emoji: CYLINDERS are unique, compact selfcontained
units combining Cylinder and Valve into one complete module.
The base of the 4-way built-in valve is an integral part of the cylinder rear
head, providing faster response and flow.
These units are space, time and cost savers in most applications. Only
one air connection is required. The built-in speed control
screws enable fine adjustment of the extending and retracting stroke
speeds independently. Consequently, pipe connections are
reduced, reliability is increased and maintenance and installation costs
are lowered.
The basic design features and materials are the same as found on the
standard Allenair Cylinders and Valves on Pages 9 and 67.
Standard Stroke Lengths: Half-inch increments up to 3-1/2” and
whole-inch increments from 4” through 20”.
Special strokes available from 1/8” to 130”.
units combining Cylinder and Valve into one complete module.
The base of the 4-way built-in valve is an integral part of the cylinder rear
head, providing faster response and flow.
These units are space, time and cost savers in most applications. Only
one air connection is required. The built-in speed control
screws enable fine adjustment of the extending and retracting stroke
speeds independently. Consequently, pipe connections are
reduced, reliability is increased and maintenance and installation costs
are lowered.
The basic design features and materials are the same as found on the
standard Allenair Cylinders and Valves on Pages 9 and 67.
Standard Stroke Lengths: Half-inch increments up to 3-1/2” and
whole-inch increments from 4” through 20”.
Special strokes available from 1/8” to 130”.
TYPE AVSA
A continuous electrical contact is required to fully extend the rod, which will remain extended until the
electrical contact is broken. An external force is required to return the rod to its original position. A 1/8”
N.P.T. port is provided in the front head to permit the return of the rod by means of a separate air supply
when required. This port can also be used to install a Flow Control Valve to control forward speed.
Standard stroke lengths are whole inch increments from 1" through 20” and 1/2", 1-1/2", 2-1/2"
and 3-1/2" . Special strokes available from 1/8” to 80” maximum.
TYPE AVSR
ROD NORMALLY RETRACTED
A continuous electrical contact is required to fully extend the rod, which will remain extended until the
electrical contact is broken. An internal spring will return the rod to its fully retracted position.
SPRING FORCE: 17 LBS. AT REST, 40 LBS. FULL STROKE.
Standard stroke lengths are whole inch increments from 1" through 10” and 1/2", 1-1/2", 2-1/2" & 3-1/2”.
Special strokes available from 1/4” to 10” maximum.
TYPE AVSRR
ROD NO
DOUBLE PILOT
MODEL AP
This model incorporates a 4-way Double Pressure Pilot Valve. A
momentary or maintained pilot pressure applied to one side of the valve
will move the rod its full stroke. The rod will remain in that position under
pressure until a pilot pressure is applied to the other side, which will
cause the rod to return to its original position. If a maintained pilot
pressure is applied, it must be released before the other pilot pressure is
applied. Pilot pressure must be at least 25% of the operating pressure.
Bore Sizes Available: 1-1/8”, 1-1/2”, 2”, 2-1/2”, 3”, 4” & *5”.
* 5” BORE AVAILABLE-Consult Factory for Details.
SINGLE PILOT
MODEL APSR
Models incorporate a 4-way Single Pressure Pilot Valve. A continuous
pilot pressure applied to “IN” side of valve will move rod its full stroke.
When the pilot pressure is released, the rod will return to its original
position. Pilot pressure is normally supplied through an optional
N.C. Valve.
Models can be supplied with the rod normally retracted (pilot pressure to
extend rod) or normally extended (pilot pressure to retract rod). The pilot
pressure must be at least 75% of the operating pressure.
Bore Sizes Available: 1-1/8“, 1-1/2“, 2”, 2-1/2“, 3”, 4” & *5”.
* 5” BORE AVAILABLE-Consult Factory for Details.
DOUBLE SOLENOID
MODEL SDS
Models incorporate a 4-way Double Solenoid Pressure Pilot
Valve. A momentary or maintained electrical contact applied to
one solenoid will move the rod its full stroke. The rod will remain
there under pressure until the other solenoid is energized, which
will cause the rod to return to its original position. If a maintained
contact is employed, the first solenoid must be de-energized
before the other is energized. The standard solenoid operator is
the AAS splice box housing.
Bore Sizes Available: 1-1/8”, 1-1/2”, 2”, 2-1/2”, 3”, 4” & *5”.
Voltages: 12, 24, 120 & 240/60 AC and 6, 12 & 24VDC
are standard.
* 5” BORE AVAILABLE-Consult Factory for Details.
DOUBLE PILOT
MODEL SVA
This model incorporates a 4-way Double Bleed Pilot Valve. A Bleeder
Valve, such as the Allenair BV100 or BV-1/8 (to be ordered separately)
must be connected to each spool cap. Depressing one Bleeder Valve
momentarily will move the rod its full stroke. Depressing the other
Bleeder Valve momentarily will return the rod to its original position.
Bore Sizes Available: 1 1/8”, 1-1/2”, 2”, 2-1/2”, 3”, 4” & *5”.
* 5” BORE AVAILABLE-Consult Factory for Details.
MANUALLY OPERATED
The following 3 models incorporate a 4-way Manual Valve.
Bore Sizes Available: 1-1/8”, 1-1/2”, 2”, 2-1/2”, 3”, 4” & *5”.
* 5” BORE AVAILABLE-Consult Factory for Details.
MODEL VH:
This model requires manual operation of the lever to both extend and
retract the rod.
MODEL VHSRR:
This model is lever operated to extend the normally retracted rod.
The valve is equipped with a built-in air return which
automatically retracts the rod when lever is released.
MODEL VHSRE:
This model is lever operated to retract the normally extended rod.
The valve is equipped with a built-in air return which automatically extends
the rod when leve
SINGLE SOLENOID
MODEL SVEVA
These models incorporate a 4-way Single Solenoid Double Bleed
Pilot Valve. A momentary (NOT continuous) electrical contact is re-
quired to move the rod its full stroke. A Bleeder Valve, such as the
Allenair BV100 or BV-1/8 (to be ordered separately), must be con-
nected to the spool cap opposite the solenoid.
Depressing this Bleeder Valve momentarily will return the rod to its
original position.
Models can be supplied with the rod normally retracted (electrical
contact will extend rod) or normally extended (electrical contact will
retract rod). The standard solenoid operator, as shown is the AAS
splice box housing.
Bore Sizes Available: 1-1/8”, 1-1/2”, 2”, 2-1/2”, 3”, 4” & *5”.
Voltages: 12, 24, 120 & 240/60 AC and 6, 12 & 24VDC
Are standard.
* 5” BORE AVAILABLE-Consult Factory for Details.
FOR DIMENSIONS AND MOUNTS SEE
PAGES PAGES 40 - 44.
AVAILABLE IN TYPES
“AV”, “CV”, “EV” & “EVT”
ROD NORMALLY RETRACTED MODEL SVEVAR
Energize solenoid to extend rod, manual bleed signal to retr
SINGLE SOLENOID
MODEL SVS
These models incorporate a 4-way Single Solenoid Pilot Valve, air
return. A maintained electrical contact is required to move the rods
its full stroke. Breaking the electrical contact returns the rod to its
original position.
Models can be supplied with the rod normally retracted
(electrical contact will extend rod) or normally
extended (electrical contact will retract rod).
The standard solenoid operator, is the AAS
Splice box housing.
Bore Sizes Available: 1-1/8”, 1-1/2”, 2”, 2-1/2”, 3”, 4” & *5.
Voltages: 12, 24,120 & 240/60 AC and 6, 12 & 24VDC are
standard.
* 5” BORE AVAILABLE-Consult Factory for Details.
ROD NORMALLY RETRACTED MODEL SVSR
Energize solenoid to extend rod, de-energize solenoid to retract rod.
ROD NORMALLY EXTENDED MODEL SVSE
Energize solenoid to retract rod, de-energize solenoid to extend rod.
SHOWN WITH
SPLICE BOX HOUSING AAS
SINGLE PILOT
MODEL VAR AUTOMATIC RETURN
Models incorporate a 4-way Double Bleed Pilot Valve. A momentary
(NOT continuous) actuation of Bleeder Valve is required to move the rod
its full stroke. Upon reaching its FULL stroke, the rod will automatically
return to its original position.
Models can be supplied with the rod normally retracted (manual bleed to
extend rod) or normally extended (manual bleed to retract rod). Due to
internal construction and application requirements, there can be a loss
of approximately 1/8” to 1/4” of stroke.
Bleeder Valve Model BV100 is supplied on these models.
Bore Sizes Available: 1-1/2“, 2”, 2-1/2”, 3” & 4”.
AUTOMATIC RECIPROCATING
MODEL VCR This model incorporates a 4-way Double
Bleed Pilot Valve. By means of Built-in Bleeder Valves and internal
Cam Bosses, this unit will automatically reciprocate as soon as air
pressure is applied. Because of this, it is recommended that a
shut-off valve be mounted in the inlet line. Due to internal
construction and application requirements, there can be a loss of
approximately 1/4” to 1/2” of stroke. Minimum stroke available is 1/2”.
Bore Sizes Available: 1-1/2”, 2”, 2-1/2”, 3” & 4”.
SINGLE SOLENOID
MODEL VER AUTOMATIC RETURN
Models incorporate a 4-way Single Solenoid Double Bleed Pilot Valve.
A momentary (NOT continuous) electrical contact is required to move
the rod its full stroke. Upon reaching its FULL stroke, the rod will
automatically return to its original position.
Models can be supplied with the rod normally retracted (electrical
contact will extend rod) or normally extended (electrical contact will retract rod).
The standard solenoid operator is the AAS splice box housing.
Due to internal construction and application requirements, there can
be a loss of approximately 1/8” to 1/4” of stroke.
Bore Sizes Available: 1-1/2”, 2”, 2-1/2”, 3”, 4” & *5”.
Voltages: 12, 24, 120 & 240/60 and 6, 12 & 24VDC
are standard.
* 5” BORE AVAILABLE-Consult Factory for Details.
ROD NORMALLY RETRACTED
MODEL VERR
Energize solenoid to extend rod and retract automatically.
ROD NORMALLY EXTENDED
MODEL VERE
Energize solenoid to retract rod and extend automatically.
TYPE AV
All Type “AV” Cylinders, with the exception of the 4” bore are constructed
using “O”-Ring Seals. The 4” bore uses “O”- Ring Rod Seals and
“U”-Cup Piston Seals. Coupled with one of a wide variety of 4-way
valves, these all purpose units are used for most pneumatic applications.
Optional Double Rod Packing is recommended for heavy-duty
applications.
Pressure Rating : 20 P.S.I. Minimum
150 P.S.I. Maximum
TYPE CV
Type “CV” Cylinders are constructed using low friction
“U”- Cup Seals. A heavy-duty wear strip (bearing) on the piston mini-
mizes friction and piston cup wear, and on side load conditions prevents
metal-to-metal contact. Coupled with one of a wide variety of 4-way
valves, these units are primarily used on low friction applications and
where low minimum breakaway is required.
Pressure Rating : 10 P.S.I. Minimum
150 P.S.I. Maximum
TYPE EV
Type “EV” Cylinders are constructed using Block-Vee Seals and include
a heavy-duty wear strip on the piston and double rod seals in the front
head. Coupled with one of a wide variety of 4-way Valves, these Cylin-
ders are recommended for heavy-duty applications and where side load
conditions are present.
Pressure Rating : 20 P.S.I. Minimum
150 P.S.I. Maximum
TYPE EVT
Type "EVT" Cylinders feature two Cylinders in tandem having two
pistons mounted on one common rod (as Type "ET" on Page 11).
Block-Vee Seals are used and include a wear strip on both pistons
and double rod seals in the front head. The rear Cylinder has the
advantages of an air operated Valve-in-Head® Cylinder, yet
hydraulic control can be obtained by filling the front Cylinder with oil
and piping its ports in series using a flow control valve.
Pressure Rating : 20 P.S.I. Minimum
150 P.S.I. Maximum
BASIC CONSTRUCTION (VALVES)
The valve portion of the Valve-in-Head® Cylinder is a corrosion resistant slider type 4-way 2-position valves. The valve base is hard coated aluminum, lapped within one light band, and electro filmed. This provides minimum
slider wear, positive seal and millions of trouble-free cycles.
A durable delrin spool rapidly pilots the high-tensile manganese bronze slider across the enlarged internal ports changing direction of flow. The built-in side tubing provides air passage to the front end of the Cylinder.
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