Low/High Temperatures [Classic 21 Series] 2156B6012
- ¼” to 1 ½” Port Sizes
- 2, 3 or 4-way valves
- High Temperature and Low Temperature Applications
- Readily Adaptable to Vacuum Service
- Extreme Temperature Range Options including up to 300° F (150° C) for pressure controlled models and down to -40° F (-40° C) with Buna-N Seals
Product Information
Valve Type | Directional Control |
Series | 21 |
Actuation | Pneumatic |
Return | Spring |
Thread Type | NPT |
Construction | Poppet |
Mounting | Inline |
Pilot Type | External |
Duty Rating | Continuous Duty |
Fluid Media | Filtered air |
Operating Pressure | 30 to 150 psig (2 to 10 bar) |
Operating Pressure (bar) | 2 to 10 |
Pilot Supply Minimum | Equal to or greater than inlet pressure |
Valve Body Material | Cast Aluminum |
Poppet/Spool Material | Aluminum and Stainless Steel |
Seal Material | Fluorocarbon |
Application | Low Temperature |
Default Position | Normally Open |
Exhaust Pipe Size | 1" |
Size | 3/4 |
Ambient Temperature | -40 to 120 F (-40 to 50 C) |
Ambient Temperature (Celsius) | -40 to 50 |
Media Temperature | -40 to 175 F (-40 to 80 C) |
Media Temperature (Celsius) | -40 to 80 |
Function | 4/2 Single Pilot |
Width | 4.63 in (118 mm) |
Width (mm) | 118 |
Inlet Pipe Size | 1" |
Outlet Pipe Size | 1" |
Length | 5.15 in (131 mm) |
Length (mm) | 131 |
Height | 5.78 in (147 mm) |
Height (mm) | 147 |
Weight | 5.8 lb (2.6 kg) |
Weight (kg) | 2.6 |
Cv (1-4) | 7.8 |
Cv (4-3) | 26.0 |
Cv (1-2) | 7.8 |
Cv (2-3) | 26.0 |