Low/High Temperatures [Classic 21 Series] 2151B4002
- 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 | Low Temperature |
Actuation | Pneumatic |
Function | 2/2 Single Pilot |
Default Position | Normally Closed |
Return | Spring |
Thread Type | NPT |
Inlet Pipe Size | 1/2" |
Outlet Pipe Size | 1/2" |
Construction | Poppet |
Mounting | Inline |
Pilot Type | External |
Size | 3/4 |
Avg Cv | 6.5 |
Duty Rating | Continuous Duty |
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 |
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 |
Length | 4.56 in (116 mm) |
Length (mm) | 116 |
Width | 3.11 in (79 mm) |
Width (mm) | 79 |
Height | 4.42 in (112 mm) |
Height (mm) | 112 |
Weight | 4.2 lb (2.0 kg) |
Weight (kg) | 2.0 |
Valve Body Material | Cast Aluminum |
Poppet/Spool Material | Aluminum and Stainless Steel |
Seal Material | Fluorocarbon |