Low/High Temperatures [Classic 21 Series] 2156B8011
- 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 |
Application | High Temperature |
Actuation | Pneumatic |
Return | Spring |
Thread Type | NPT |
Construction | Poppet |
Mounting | Inline |
Pilot Type | External |
Duty Rating | Continuous Duty |
Ambient Temperature | 0 to 250 F (-17 to 122 C) |
Ambient Temperature (Celsius) | -17 to 122 |
Media Temperature | 0 to 300 F (-17 to 150 C) |
Media Temperature (Celsius) | -17 to 150 |
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 |
Default Position | Normally Open |
Function | 4/2 Single Pilot |
Exhaust Pipe Size | 1-1/2" |
Size | 1-1/4 |
Height | 7.49 in (190 mm) |
Height (mm) | 190 |
Width | 6.49 in (165 mm) |
Width (mm) | 165 |
Length | 4.31 in (110 mm) |
Length (mm) | 110 |
Inlet Pipe Size | 1-1/2" |
Outlet Pipe Size | 1-1/2" |
Weight | 12.0 lb (5.4 kg) |
Weight (kg) | 5.4 |
Cv (4-3) | 27.0 |
Cv (1-4) | 22.0 |
Cv (1-2) | 22.0 |
Cv (2-3) | 27.0 |