Model HP742 is a 2-stage stainless steel bar stock cylinder regulator for constant delivery pressure from full to near empty cylinder conditions. The Model HP742 is suitable for corrosive gas applications， high purity gas applications， research sample systems gases， process analyzer gases， gas chromatography， EPA protocol gases， laser gas systems and emission monitoring systems. This specialty gas， lab quality regulator is to be used with compressed air.
1-11/16 in. 316L stainless steel diaphragm eliminates contamination from diffusion or outgassing
1-piece encapsulated seat design includes a sintered filter to protect the seat from particulate contamination
Chrome-plated brass bonnet， 316L stainless steel body and fittings
2 in. dual scale stainless steel gauges (psi/bar)
Front panel mountable
Designed to 1 x 10-9 cc/sec. inboard helium leak rate to maintain gas purity levels
Maximum inlet 3000 PSIG except for models with CGA 240， 300 and 510 and equipped with 400 PSIG inlet gauge
Recommended for corrosive gases or purity levels of grade 6.0 (99.9999) and higher
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