21 Vacuum Series

2151A2901

 

 

  • Poppet construction for high dirt tolerance
  • ROSS vacuum valves have larger orifices, allowing greater flow and easing the transport of air even though there is a small differential between the vacuum within the valve and atmospheric pressure outside the valve
  • Can be mounted close to actuator, reducing length of pipe to be pressurized/exhausted on each cycle
  • Internal/external pilot supply
  • Near zero leakage

 

Need Help? No Problem!

Customer Service
1-800-GET-ROSS

Technical Service
1-888-TEK-ROSS

2151A2901

$24154
USD

Quantity

Estimated Ship Date: 09/06/2022

**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 Vacuum Valve, 2/2 Single Pilot, Normally Closed, 1/4" NPT (In-Out)
Valve Type Directional Control
Series 21
Application Vacuum
Actuation Pneumatic
Function 2/2 Single Pilot
Default Position Normally Closed
Return Spring
Thread Type NPT
Inlet Pipe Size 1/4"
Outlet Pipe Size 1/4"
Construction Poppet
Mounting Inline
Pilot Type External
Manual Override Not Included
Size 3/8
Cv (1-2) 2.1
Ambient Temperature -40 to 175 F (-40 to 80 C)
Ambient Temperature (Celsius) -40 to 80
Media Temperature -40 to 175 F (-40 to 80 C)
Media Temperature (Celsius) -40 to 80
Fluid Media Filtered air
Operating Pressure Vacuum to 150 psig (vacuum to 10 bar)
Operating Pressure (bar) Vacuum to 10
Pilot Supply Minimum Equal to or greater than inlet pressure
Length 3.56 in (90 mm)
Length (mm) 90
Width 3.11 in (79 mm)
Width (mm) 79
Height 3.71 in (94 mm)
Height (mm) 94
Weight 1.8 lb (0.8 kg)
Weight (kg) 0.8
Valve Body Material Aluminum
Poppet/Spool Material Aluminum and Stainless Steel
Seal Material Fluorocarbon
Weight 1.8 lbs (0.82 kg)
View Our Terms & Conditions | Standard Warranty | Cautions & Warnings | Privacy Policies Copyright © 2022 ROSS Controls. All Rights Reserved.