Advanced Specialty Gas Equipment

Stainless Steel Two-Stage Regulator Model APG
STAINLESS STEEL REGULATORS
Model APG

Ultra High Purity, Two-Stage, Bar Stock Regulators

The Model APG stainless steel bar stock regulator is specially suited for applications requiring both corrosion and diffusion resistance in a two-stage regulator. It is recommended for high purity gases or gas mixtures that have corrosive properties. The two-stage design provides constant outlet pressure regardless of changes in cylinder (inlet) pressure.


Standard FeaturesStainless Steel Two-Stage Regulator Model APG
  • Type 316 Stainless Steel Bar Stock Construction provides maximum corrosion resistance.
  • Metal to Metal Diaphragm to Body Seal (without back-up o-ring) assures maximum diffusion resistance.
  • High Purity Regulator Design permits vacuum purging of regulator.
  • Diaphragm Seal Outlet Valve maintains gas purity.
  • Filter traps foreign matter, extends regulator life and reduces maintenance.
  • 1⁄16" NPT Female Bonnet Vent Ports allow bonnets to be connected to a vent line or disposal system as a precaution in the unlikely event of a diaphragm failure.
Optional Features
  • Captured Venting Configuration provides 1⁄16" NPTF vent ports and stem packing allowing for complete
    capturing of second stage bonnet when connected to a vent line or disposal system.
  • Mounting Ring permits regulator to be panel mounted.
  • Quick Mount Assembly provides for convenient and safe wall-mounted installation.
  • Internal (Inboard) Helium Leak Test and Test Report determines inboard leak rate of gas from regulator to
    atmosphere; test report certifies leak rate of less than 2 x 10–8sccs air equivalent.
  • External (Outboard) Helium Leak Test and Test Report determines outboard leak rate of gas from regulator to atmosphere; test report certifies leak rate of less than 5 x 10–7 sccs air equivalent.
Specifications
Maximum Inlet Pressure: 3000 psig

Inlet Pressure Gauge (dual scale):
  0–4000 psig / 0–275 bar

Delivery Pressure Range

Delivery Pressure Gauge

Filter: 40 micron

Gauge Size: 2" Dial

Operating Temp. Range: -40°F to 140°F

Flow Coefficient:
  Regulator: Cv = 0.05
  Outlet Valve: Cv = 0.17

Bonnet Vent Connection: 1⁄16" NPT female

Inlet Connection: CGA 296, 320, 326,
330, 346, 350, 510, 540, 580, 590, 660 or
705 as ordered

Outlet Connection:   1⁄4" NPT female

Supply Pressure Effect: 0.04 psi per 100 psi

Approximate Weight: 5 lbs

Materials of Construction
Body and Outlet Valve: Type 316 Stainless Steel Bar Stock
Gauges: Type 316 Stainless Steel
Bonnet: 300 Series Stainless Steel
Other Metal Parts Exposed to Gas: Type 316 Stainless Steel
Seats: PCTFE
Friction Sleeve: PTFE
Diaphragm: Type 316 Stainless Steel

Optional Equipment

Equipment Part No.
Panel Mounting Ring* PM3803
Regulator Mounting Plate* for Model APC RP1
Inboard Helium Leak Test and Test Report HT1000
Outboard Helium Leak Test and Test Report HT1001
Compression Fittings* (male connectors)  
  1⁄4" NPT male x 1⁄8" compression SG6713
  1⁄4" NPT male x 1⁄4" compression SG6714
  1⁄16" NPT male x 1⁄8" compression SG6715
Safety Mounting Brackets*  
Captured Venting Configuration SG5650
To order regulator with optional quick mount assembly, suffix regulator part number with QM. Example: APG-3-150-580-QM.
One 30" all stainless steel flexible hose with check valve – CGA connection will be included with each quick mount assembly.

Table I

  Delivery Pressure
Part No. Range
(psig)
Gauge (dual scale)
(psig)

(bar)
APG-3-30-(CGA) 2–30 -30" Hg–0–60 -1–0–4
APG-3-75-(CGA) 4–75 -30" Hg–0–100 -1–0–7
APG-3-150-(CGA) 10–150 -30" Hg–0–200 -1–0–14
APG-3-300-(CGA) 20–300 0–400 0–27
APG-3-500-(CGA) 30–500 0–600 0–41
Where “(CGA)” is indicated above, insert appropriate Compressed Gas Association connection number to
complete the part number. Example: APG-3-30-580. Order by complete part number.