Model HP 721C-050-590-A Ultra-High Purity Regulator

Model HP 721C is an electroless nickel-plated brass barstock single-stage cylinder regulator for pressure control of non-corrosive gases when pressure rise is not critical. The Model HP 721C regulator is suitable for high purity gas applications, research sample systems gases, process analyzer gases, gas chromatography, EPA protocol gases, laser gas systems and emission monitoring systems. Recommended for gas purity levels of Grade 5.0 (99.999) and higher.

Features

• 1-11/16 in. 316L stainless steel diaphragm eliminates contamination from diffusion or outgassing
• One-piece encapsulated seat design with 10 micron sintered internal filter to protect the PTFE Teflon® seat from particulate contamination
• Electroless nickel-plated brass barstock body, bonnet and fittings
• 2 in. electroless nickel-plated brass barstock dual scale gauges (psi/bar)
• Designed to 1 x 10-9 cc/sec. inboard helium leak rate to maintain gas purity levels
• External relief valve is standard
• Maximum inlet 3000 PSIG
• Front or back panel mountable
• Conforms to CGA E-4 standard for gas pressure regulators