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WA 403

General Purpose - Brass Regulator

Model WA 403 is a brass single stage pipeline regulator with a neoprene diaphragm for general purpose laboratory applications. The WA 403 is not recommended for high purity applications which may be sensitive to contamination due to elastomeric components. The WA 403 is suitable for:

  • Non-corrosive industrial grade gases
  • Purging
  • Pressure testing
  • Blanketing

Materials

Body Brass
Bonnet Painted Die Cast
Diaphragm Neoprene
Nozzle Brass
Seat PTFE Teflon
Filter Nickel-Plated Sintered Bronze - 10 Micron
Seat Return Spring PH 17-7 Stainless Steel
Adjusting Knob ABS Plastic
Inlet/Outlet 1/4" FNPT

Features

  • 0-15, 0-50, 0-125 and 0-250 PSIG delivery pressure
  • Neoprene diaphragm for greater sensitivity
  • One-piece encapsulated seat design to protect the seat from particulate contamination
  • Tamper-proof, self reseating internal safety valve
  • 2″ dual scale brass gauge (psi/kPa)
  • Conforms to CGA E-4 standard for gas pressure regulators

WA 403 Ordering Information

WA 403
Model No.
  • WA 403
XXXX
Delivery Pressure
Delivery (Outlet Gauge)
  • 0-15 PSIG (30” Hg Vac-30 psi/2 bar)
  • 0-50 PSIG (30" Hg Vac-100 psi/7 bar)
  • 0-125 PSIG (30" Hg Vac-200 psi/14 bar)
  • 0-250 PSIG (400 psi/28 bar)
XXX
CGA / Inlet Fitting
  • 000 - 1/4" FNPT x 1/4" FNPT
  • 001 - 1/4" MNPT x 1/4" MNPT
  • 002 (1/4" Tube Fitting)
  • 003 (1/8" Tube Fitting)
  • 004 (1/4" Hose barb x 1/4" MNPT)
  • 005 (1/8" Hose barb x 1/4" MNPT)
  • G. 1/4" MNPT Hose Barb
  • H. 1/8" MNPT Hose Barb
XX
Accessories
  • A. 1/4" MNPT Needle Valve
  • B. 1/4" FNPT Diaph. Valve
  • C. 1/4" MNPT Nipple
  • D. 1/4" FNPT Port
  • E. 1/4" Tube Fitting
  • F. 1/8" Tube Fitting
XX
Options
  • 1. No gauges

Flow Data

Specifications

  • Cv: .17
  • Pressure Regulation: 1.8 PSIG/100 PSIG
  • Weight: 2.92 lbs.

Dimensions

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