VITA TECHNOLOGY
 
Assembled 3-way valves
PISTON

These are a family of air operated valves actuated by a piston. The material of construction is primarily stainless steel ASTM-CF8 investment casting, AISI-304 drawn materials, and bronze. The piston is aluminium alloy and the spring material is powder coated spring steel. All 3-way piston valves have soft seats with carbon filled PTFE enabling bubble tight sealing.

The mounting for all valves are threaded ports with the option of flange mounts. We also manufacture 3-way normally open valves. These valves are available with threaded mounting or with optional flange mounting.

Custom designs are possible. All dimensions and drawings can change at any time without any notice. Information is for reference only. Please contact us for details before ordering or purchasing.



Screw Type

Screw type
Screw type 3-way piston valve
Screw type
Specifications

Sizes (normally closed)
1/4", 1/2", 3/4", 1", 1-1/4" and 1-1/2"
Control air pressure
35 - 50 psi (2.4 - 3.5 bar)
Maximum pressure
460 psi (32 bar)
Maximum fluid temperature
205 degrees C



Model No. Size
inches
L
mm
H1
mm
H2
mm
D
mm
Weight
kg
Flow
Cv
V-S306-GA 1/4" 85 50 164 81 2.5 -
V-S315-GA 1/2" 85 50 164 81 2.5 3.9
V-S320-GA 3/4" 110 61 190 99 3.9 5.7
V-S325-GA 1" 120 70 230 124 6.3 9.7
V-S332-GA 1-1/4" 145 76 252 140 9.0 18.8
V-S338-GA 1-1/2" 160 85 293 166 13.8 26.6




Large Type

Large type
Large type 3-way piston valve
Large type
Specifications

Sizes (normally closed)
2" and 2-1/2"
Control air pressure
35 - 50 psi (2.4 - 3.5 bar)
Maximum pressure
300 psi (21 bar)
Maximum fluid temperature
205 degrees C


Model No. Size
inches
L
mm
H1
mm
H2
mm
Flow
Cv
Weight
kg
V-S350-GA 2" 180 94 324 34.6 20.5
V-S365-GA 2-1/2" 220 114 370 54.0 32.2




Normally Open Type

Normally open type
Normally open 3-way piston valve
Normally open type
Specifications

Sizes (normally open)
1/2", 3/4", 1", 1-1/4", 1-1/2" and 2"
Control air pressure
35 - 50 psi (2.4 - 3.5 bar)
Maximum pressure
460 psi (32 bar), 2"- 300 psi (21 bar)
Maximum fluid temperature
205 degrees C



Model No. Size
inches
L
mm
H1
mm
H2
mm
D
mm
Weight
kg
VNO-S315-GA 1/2" 85 50 191 81 2.8
VNO-S320-GA 3/4" 110 59 210 99 4.4
VNO-S325-GA 1" 120 70 290 124 7.2
VNO-S332-GA 1-1/4" 145 76 323 140 10.3
VNO-S338-GA 1-1/2" 160 91 383 166 16.2
VNO-S350-GA 2" 180 94 417 197 22.6




Flange Type

Flange type
Flange type
Specifications

Sizes (normally closed)
1/4", 1/2", 3/4", 1", 1-1/4", 1-1/2", 2" and 2-1/2"
Control air pressure
35 - 50 psi (2.4 - 3.5 bar)
Maximum pressure
460 psi (32 bar) , 2", 2-1/2"- 300 psi (21 bar)
Maximum fluid temperature
205 degrees C


Size 1/2" 3/4" 1" 1-1/4" 1-1/2" 2" 2-1/2"
OL-Standard (JIS) 146 146 167 190 190 216 241
OL-ANSI 140 150 170 190 200 230 241
OL-DIN 130 150 160 180 200 230 241


Click here to view flange details.

Replace 3xx by 2xx for 2-Way Valves, with Port 3 plugged.
Flange: Standard-JIS, Optional: ANSI, DIN