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WA 772 Regulator

WA 772

High Purity - Brass Barstock Regulator

Model WA 722 is a two stage cylinder regulator available in brass (WA 722) or chrome plated brass (WA 722C) barstock for constant delivery pressure from full to near empty cylinder conditions. The WA 722 is suitable for:

  • High purity gas applications
  • Research sample systems gases
  • Process analyzer gases
  • Gas chromatography
  • EPA protocol gases
  • Laser gas systems
  • Emission monitoring systems

Recommended for gas purity levels of Grade 5.0 (99.999) and higher.

Materials

Body/Bonnet Brass Barstock
Diaphragm 316L Stainless Steel
Nozzle Brass
Seat PTFE Teflon
Seals PTFE Teflon
Filter Nickel-Plated Sintered Bronze - 10 Micron
Seat Return Spring PH17-7 Stainless Steel
Adjusting Knob ABS Plastic

Features

  • 1 11/16″ 316L stainless steel diaphragm eliminates contamination from diffusion or outgassing
  • One piece encapsulated seat design includes a sintered filter to protect the seat from particulate contamination
  • 2″ dual scale brass gauges (psi/bar)
  • Designed to 1 x 10-9 cc/sec. inboard helium leak rate to maintain gas purity levels
  • Front and rear panel mountable
  • Maximum inlet 3000 PSIG except for models with CGA 300 and 510 equipped with 400 PSIG inlet gauge

WA 772 Ordering Information

WA 772
Model No.
  • WA 772
  • WA 772C (chrome plated)
XXX
Delivery Pressure
Delivery (Outlet Gauge)
  • 0-15 PSIG (30” Hg Vac-30 psi/2 bar)
  • 0-15 PSIG (30” Hg Vac-30 psi/2 bar)
  • 0-125 PSIG (30” Hg Vac-200 psi/14 bar)
  • 0-250 PSIG (400 psi/28 bar)
  • 0-500 PSIG (1000 psi/70 bar)
XXX
CGA / Inlet Fitting
  • 000 (1/4” FNPT) 346
  • 001 (1/4” MNPT) 350
  • 296 510
  • 300 540
  • 320 580
  • 326 590
XXXX
Accessories
  • 1/4” MNPT Needle Valve
  • 1/4” FNPT Diaph. Valve
  • 1/4” MNPT Nipple
  • 1/4” FNPT Port
  • 1/4” Tube Fitting
  • 1/8” Tube Fitting
  • Single Regulator Alarm
  • SG 910 EZ BR Regulator Hose Barb
    Mounting Station 1 cyl 36" Pigtail
XXXX
Options
  • Without Relief Valve
  • He Leak Cert. (Inboard)
  • No Gauges
  • He Leak Cert. (Outboard)

Flow Data

WA 772 reguator flow data chart

Specifications

  • Cv: .06
  • Pressure Regulation: .05 PSIG/100
  • PSIG
  • Weight: 4.43 lbs.

Dimensions

WA 772 regulator dimensions diagram

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