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21 Series

2156B4011

 

 

  • 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

Need Help? No Problem!

Customer Service
+1 (416) 251-7677

Technical Service
+1 (416) 251-7677

Need Help? No Problem!

Customer Service
+1 (416) 251-7677

Technical Service
+1 (416) 251-7677


Product Information

Description 21 Series High Temp 4/2 Single Pilot Valve, Normally Open, 1/2" NPT (In-Out), 1/2"NPT (Exhaust)
Valve Type Directional Control
Series 21
Application High Temperature
Actuation Pneumatic
Return Spring
Thread Type NPT
Exhaust Pipe Size 1/2"
Construction Poppet
Mounting Inline
Pilot Type External
Size 3/8
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
Inlet Pipe Size 1/2"
Outlet Pipe Size 1/2"
Width 3.91 in (99 mm)
Width (mm) 99
Cv (1-4) 5.6
Cv (4-3) 8.1
Length 3.91 in (97 mm)
Length (mm) 97
Height 3.96 in (101 mm)
Height (mm) 101
Weight 3.0 lb (1.4 kg)
Weight (kg) 1.4
Cv (1-2) 5.6
Cv (2-3) 8.1
Weight 3.0 lbs (1.36 kg)
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