Model HP721
Model HP 721-015-580-B

Where to buy this product


HP 721

Description: High Purity Single Stage Brass Barstock Regulator

A single stage cylinder regulator available in brass (HP 721) or chrome plated brass (HP 721C) barstock for pressure control of non corrosive gases when pressure rise is not critical.

Typical Application:  High Purity Brass Barstock
High purity gas applications
Research sample systems gases
Process analyzer gases
Gas chromatography
EPA protocol gases
Laser gas systems
Emission monitoring systems

Pressure Control
  • 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)
    • 1 x 10-9 cc/sec. inboard helium leak rate maintains gas purity levels
    • Front or back panel mountable
    • Maximum inlet 3000 PSIG except for models with CGA 300 and 510, equipped with 400 PSIG Inlet Gauge
    • External relief valve standard
    StagesGaugesGas PurityCertifications
    Singlepsi/barGrade 6.0 (99.9999) and higherCGA E-4
    Specialty Gas Selection Tool

    Ordering Information for Model HP 721
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  • Max Inlet Pressure PSIGMax Inlet Pressure MetricGas ServiceGas SupplyGasWeightPressure RegulationCv
    High Purity
    HP Cylinder
    High Purity and Non-corrosive2.92 lbs. (1.32 kg)1.8 psig/100 psig0.08

    Diagram of Model HP721
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    Flow Data for Model HP721
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  • Manual