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Standard Features

  • Balanced Valve Design
  • Non-Rising Pressure Adjusting Dial
  • High-Relief Flow (3/16" Relief Orifice)
  • Two 1/4" Gauge Ports
  • Piston Operated

Optional Features (Specify when requesting a quote)

  • Low Pressure Spring
  •  Remote Controlled
  • Fluorocarbon Diaphragm and Seals
  • Adjustable Pressures (psig): 0-40 or 0-160
Wilkerson R21 Inline Regulator
Unit of Measure
Items Wilkerson R21 Inline Regulator
R21-02-000
Wilkerson R21 Regulator
Wilkerson R21 Inline Regulator
R21-03-000
Wilkerson R21 Regulator
Wilkerson R21 Inline Regulator
R21-04-000
Wilkerson R21 Regulator
Wilkerson R21 Inline Regulator
R21-06-000
Wilkerson R21 Regulator
Wilkerson R21 Inline Regulator
R21-02-L00
Wilkerson R21 Regulator
Capacity N/A 117 cfm N/A 180 cfm N/A 195 cfm N/A 220 cfm N/A 117 cfm
Thread Size N/A 1/4" N/A 3/8" N/A 1/2" N/A 3/4" N/A 1/4"
Thread Type N/A NPT
Adj. Pressure N/A 5 to 160 psig N/A 5 to 160 psig N/A 5 to 160 psig N/A 5 to 160 psig N/A 2 to 40 psig
Max. Inlet Pressure N/A 300 psig
Operating Temperature N/A 32-150 ºF
Shipping Weight N/A 2.3 lb
Gauge Port N/A 2 x 1/4"