Inline Poppet Valves (21 Series)

2151A4910

Vacuum, Low/High Temperatures [Classic 21 Series]2151A4910

RC 48947 Vacuum, Low/High Temperatures [Classic 21 Series] Scraped 2026-04-28 03:19:26

Specifications

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 1/2
OUTLET PIPE SIZE 1/2
CONSTRUCTION Poppet
MOUNTING Inline
PILOT TYPE External
MANUAL OVERRIDE Not Included
SIZE 3/8
CV (1-2) 3.0
AMBIENT TEMPERATURE -40 to 175 F (-40 to 80 C)
MEDIA TEMPERATURE -40 to 175 F (-40 to 80 C)
FLUID MEDIA Filtered air
OPERATING PRESSURE Vacuum to 150 psig (vacuum to 10 bar)
PILOT SUPPLY MINIMUM Equal to or greater than inlet pressure
LENGTH 3.56 in (90 mm)
WIDTH 3.11 in (79 mm)
HEIGHT 3.71 in (94 mm)
WEIGHT 1.8 lb (0.8 kg)
VALVE BODY MATERIAL Aluminum
POPPET/SPOOL MATERIAL Aluminum and Stainless Steel
SEAL MATERIAL Fluorocarbon

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