Advanced Specialty Gas Equipment

Model HPE

Brass Two-stage Regulator Model HPE Ultra High Purity, Two-Stage, Bar Stock Regulators

Model HPE brass bar stock regulators are designed to regulate ultra high purity non-corrosive gases commonly used in analytical instrument applications requiring both high reliability and diffusion resistance. The metal to metal diaphragm to body seal design assures maximum diffusion resistance. Convoluted stainless steel diaphragms provide enhanced performance and excellent accuracy. The two-stage design provides constant pressure control regardless of changes in cylinder (inlet) pressure.

Brass Two-Stage Regulator Model HPE with Quick MountStandard Features
  • 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
  • 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 10–8 sccs 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.
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, 346,
350, 540, 580, 590, or 660 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: Bonnet and Outlet Valve: Brass Bar Stock
Gauges: Brass
Filter: Sintered Bronze
Other Metal Parts Exposed to Gas:
  Brass and Stainless Steel
Seats: PCTFE
Friction Sleeve: PTFE
Diaphragm: Type 316 Stainless Steel

Optional Equipment

Equipment Part No.
Panel Mounting Ring* PM3803
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 SG6703
  1⁄4" NPT male x 1⁄4" compression SG6704
  1⁄16" NPT male x 1⁄8" compression SG6705
Safety Mounting Brackets*  
Regulator Mounting Plate for Model HPD* RP1
To order regulator with optional quick mount assembly, suffix regulator part number with QM. Example: HPE-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)
HPE-3-30-(CGA) 2–30 -30" Hg–0–60 -1–0–4
HPE-3-75-(CGA) 4–75 -30" Hg–0–100 -1–0–7
HPE-3-150-(CGA) 10–150 -30" Hg–0–200 -1–0–14
HPE-3-300-(CGA) 20–300 0–400 0–27
HPE-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: HPE-3-30-580.
Order by complete part number.