1/4˝ and 3/8˝ Sizes
Soft Seal Type

Vacuum to 250 PSI
(Subject to Pressure Limitations on Certain Models)

Threaded Body or Subplate Mounted Models

All valves shown on these two pages are assembled from the same basic body size, although the 3/8˝ models have larger internal passages for greater air flow. Subplate mounted valves are listed in the model selection chart but are not illustrated.

For compressed air or inert gases at pressures from vacuum to 250 PSI, subject to limitations described on the next page for certain models. Spool-type 4-way valves for operation of double-acting cylinders or reversible air motors. The valve will stand full pressure on any port, so it may be used as a 5-way valve or it may be used for 2-way or 3-way service by plugging unused ports.

Valve bodies are pressure-cast aluminum alloy; end caps are steel, aluminum, or zinc; spools are machined from aluminum bar stock and processed to a glass-hard surface finish; springs are plated steel or stainless steel; O-rings are Viton® rubber.

Three options are offered in the model chart, each using the same basic body size: second column = 1/4˝ flow capacity with 1/4˝ NPTF body threads; third column = 3/8˝ flow capacity with 3/8˝ NPTF body threads; fourth column = 3/8˝ flow capacity with unthreaded port holes through base of valve; these models must be mounted on a subplate to which plumbing connections are made. Subplate must be ordered separately.

Model Selection Chart for 1/4˝ And 3/8˝ Valves

Find desired valve type in 1st column. Select appropriate model number in 2nd, 3rd, or 4th column. Subplate valves (4th column) have base O-ring seals furnished.

Type Model
1/4˝ NPTF
Threads		 Model
3/8˝ NPTF
Threads		 Model
3/8˝ for
Subplate		 Description
Sing. Sol. SO2 - 24VDC
STOCKED ITEM		 SO3 - 120VAC
STOCKED ITEM		 SO3P 2-pos., spring returned
Sing. Sol. SO2 - 120VAC
STOCKED ITEM		 SO3OL - 120VAC
STOCKED ITEM		    
Sing. Sol. SO2 - 12VDC
STOCKED ITEM		 SO3O - 120VAC
STOCKED ITEM		    
Sing. Sol. SR2 SR3 SR3P 2-pos., pilot returned
Double Sol. SS2 SS3
STOCKED ITEM		 SS3P 2-pos., no springs
Double Sol. SY2 SY3
STOCKED ITEM		 SY3P 3-pos., spr. cent., closed center
Man. Lever HE2
STOCKED ITEM		 HE3
STOCKED ITEM		 HE3P 2-pos., friction positioned
Man. Lever HO2 HO3 HO3P 2-pos., spring returned
Man. Lever HY2
STOCKED ITEM		 HY3 HY3P 3-pos., spr. cent., closed center
Man. Lever HD2
STOCKED ITEM		 HD3
STOCKED ITEM		 HD3P 3-pos., 3-detent, closed center
Pilot Oper. RR2
STOCKED ITEM		 RR3 RR3P 2-pos., double pilot, no springs
Pilot Oper. RO2
STOCKED ITEM		 RO3
STOCKED ITEM		 RO3P 2-pos., spring returned
Pilot Oper. RY2 RY3 RY3P 3-pos., spr. cent., closed center
Button Bleed D2 D3 D3P 2-pos., no springs
Cam CO2 CO3 CO3P 2-pos., spring returned
Cam CR2 CR3 CR3P 2-pos., remote pilot returned
Foot Pedal FO2 FO3
STOCKED ITEM		 FO3P 2-pos., spring returned
Foot Pedal FR2 FR3 FR3P 2-pos., remote pilot returned
Treadle TE2
STOCKED ITEM		 TE3 TE3P 2-pos., friction positioned
Treadle TO2 TO3 TO3P 2-pos., spring returned
Treadle TY2 TY3 TY3P 3-pos., spr. cent., closed center
Treadle TD2 TD3 TD3P 3-pos., 3-detent, closed center
Palm Button KE2
STOCKED ITEM		 KE3 KE3P 2-pos., friction positioned
Palm Button KO2 KO3
STOCKED ITEM		 KO3P 2-pos., spring return to "out"
Palm Button KR2 KR3 KR3P 2-pos., pilot returned to "out"
Palm Button KD2 KD3 KD3P 3-pos., detent positioned
Palm Button KD2Q KD3Q KD3PQ 2-pos., detent positioned

 

AAA_SO2

 

 

 

 

SOLENOID VALVES. Pilot-operated solenoid type. For pressure from 160 PSI to 50 PSI on spring models and down to 25 PSI on no spring models. If operated on pressure above or below this range, or on vacuum, valve must be converted to external pilot operation.

All standard voltages, both AC and DC can be furnished. All coils may be used for continuous duty. They have a power requirement of 11 watts. Inrush current is 0.36 amps, holding current is 0.23 amps at 120 volts, 60 Hz. Current at other voltages is in proportion. DC coils draw 9 watts at all voltages. Pigtail leads on solenoids are standard; DIN connectors are also available.

Converting to external pilot operation: Remove the pilot operator from the main valve body. Leave gasket as is and rotate the solenoid operator 180° and remount. This will put the valve nameplate on the opposite side from that shown in photos. Connect a steady source of 50 to 160 PSI air to pilot port on top of valve.

Size of double solenoid model: 5-3/4˝ ˣ 2-1/2˝ ˣ 3-3/4˝ high. Weight 2-1/2 lbs.

SO2

AAA_SS2

SS2

AAA_HE2

 

 

MANUAL LEVER. Pressure range is vacuum to 250 PSI. Handle on 2-position spring models is offset opposite to position shown in photo. On 3-position models handle is vertical in neutral. Size: 6-1/4˝ ˣ 2-1/4˝ ˣ 4-5/8˝ high (includes handle). Weight approximately 1-1/4 lbs.

HE2

AAA_RR2

 

PILOT OPERATED. Vacuum to 250 PSI on main ports. Pilot pressure is maximum 250 PSI to 50 PSI minimum on spring loaded models or 20 PSI on no-spring model. Size: 4-7/8˝ ˣ 2-1/4˝ ˣ 1-7/16˝ high. Weight 1 lb.

RR2

AAA_D2

BUTTON BLEEDER. Furnished in 2 or 3-position models. Limited to compressed air of 20 to 250 PSI. Not suitable for liquids or vacuum. Two bleed buttons are furnished in valve end caps. These may be remotely mounted on hose extensions. A momentary pressure on a bleed button causes main spool to shift. Size: 6˝ ˣ 2-1/4˝ ˣ 1-5/16˝ high. Weight 1 lb.

D2

AAA_CO2

CAM ACTUATED. Pressure range is vacuum to 250 PSI. Requires a force of 20 lbs. and a travel of 17/32˝ to fully shift spool. Has built-in over-travel of 1/32˝. Roller may be taken off and remounted at right angle to position shown. Size: 6-1/8˝ ˣ 2-1/4˝ ˣ 1-1/2˝ high. Weight 1-1/4 lbs.

CO2

AAA_FO2

 

FOOT PEDAL. For toe actuation. Pressure range is vacuum to 250 PSI.  Size: 8˝ ˣ 2-1/4˝ ˣ 2-9/16˝ over pedal. Weight 1-1/4 lbs.

FO2

AAA_TE2

 

 

FOOT TREADLE. For toe and heel operation. Pressure range is vacuum to 250 PSI. Size: 8˝ ˣ 2-1/4˝ ˣ 3-7/8˝ high over treadle. Weight 1-1/2 lbs.

TE2

AAA_KO2

PALM BUTTON. Requires 5 lbs. force on Models KE and KR, 12 lbs. on Model KO. Pressure range is vacuum to 250 PSI. Can be panel mounted by specifying Suffix R. Size: 6-1/4˝ ˣ 2-1/4˝ ˣ 1-1/2˝ high. Weight 1-1/4 lbs.

KO2

 

Available in: Alabama, Arkansas, N.W. Florida, Louisiana, Mississippi, Montana, New Mexico, Oklahoma, Texas and Utah