Model HP 721

Model HP 721 ultra high-purity single-stage regulator for gas purity levels up to grade 5.0.

Lincoln Electric Business Partner?

DETAILS

Model HP 721 is a stainless-steel diaphragm single-stage cylinder regulator for pressure control of non-corrosive gases when pressure rise is not critical. Model HP 721 is available in both brass barstock and electroless nickel-plated brass barstock (HP 721C) with various delivery pressures, CGA/inlet fittings, accessories and other options for a customized regulator to meet specific requirements.

Features

1-11/16 in. - 316L stainless steel diaphragm eliminates contamination from diffusion or out-gassing
One-piece encapsulated seat design with 10 micron sintered internal filter to protect the PTFE Teflon® seat from particulate contamination
2.5 in. dual scale gauges (psi/bar)
Ergonomic ABS plastic knob for improved grip
Brass models have brass barstock body, bonnet and fittings; Electroless nickel-plated brass models have electroless nickel-plated brass barstock body, bonnet and fittings for years of dependable service
Maximum inlet 3000 PSIG, except for CGA 300 and 510 models that are equipped with a 400 PSIG inlet gauge.
Designed to 1 x 10-9 cc/sec inboard helium leak rate to maintain gas purity levels
Equipped with an external relief valve
Front or back panel mountable

Typical Applications

High-purity gas, research sample system gas and process analyzer gases applications
Gas chromatography
EPA protocol gases
Laser gas systems
Emission monitoring systems

Disclaimers

Warning -

Cancer and Reproductive Harm -