21 Series

2156B4012

 

 

  • 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

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Customer Service
1-800-GET-ROSS

Technical Service
1-888-TEK-ROSS

2156B4012

$26471
USD

Quantity

Estimated Ship Date: 09/08/2022

**Shipping may be effected by COVID-19 pandemic

*Estimated Ship Date based on standard manufacturing times for quantities of 10 or less. Shipments will be made anywhere in the United States.

Need Help? No Problem!

Customer Service
1-800-GET-ROSS

Technical Service
1-888-TEK-ROSS


Product Information

Description 21 Series Low Temp 4/2 Single Pilot Valve, Normally Open, 1/2" NPT (In-Out), 1/2"NPT (Exhaust)
Valve Type Directional Control
Series 21
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
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
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
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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