Description

Model HPI 904 is a single-stage cylinder regulator available in nickel plated brass (HPI 904) or chrome plated brassl (HPI 904C) barstock. Designed for applications where a slight rise in delivery pressure from full to empty cylinder can be tolerated. APPLICATIONS: ▪ High purity gas applications for Non Corrosives Gases ▪ Gas chromatography ▪ Calibration gas, Purging, Blanketing ▪ Process analyzer gases ▪ Emission monitoring systems FEATURES: ▪ Recommended gases purity levels up to grade 5.0 (99.999) ▪ 302 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 ▪ Capsule seat with KELF-F (CTFE) sealing surface ▪ HPI 904 - Nickel-plated body, bonnet and fittings ▪ HPI 1904C - Chrome plated body, bonnet and fittings ▪ 1x10-8 mbar I/s He inboard helium leak rate to maintain gas purity levels ▪ 5 ports flexible configuration, 2 high pressure and 3 low pressure ▪ 1/8’’ NPT thread on the bonnet venting for safety ▪ Maximum inlet pressure: 300 bar (4350 psig) and 25 bar (362 pisg) for Acetylene AA version ▪ Cleaned for oxygen service TECHNICAL DATA: Type: Single-stage Purity: Up to 5.0 Inlet pressure: Max. 300 bar (4350 psi) and Max.25 bar (362 psig) for Acetylene AA gas Outlet pressure: 2/4/10/20 bar (29/58/145/290 psi) and 1.5 bar (21 psig) for Acetylene AA gas Flow capacity: Kv = 0,0602 (Cv = 0,07) Oxygen use: Suitable MATERIALS: Body: Standard Nickel-plated brass barstock or Chrome Plated Brass (Optional Bonnet: Nickelplated ZnAl or Chrome Plated ZnAl (optional) Diaphragm :302 Stainless Steel Nozzle: Brass Seat: Brass Seals O-ring: Kel-F (CTFE) Filter: Sintered Bronze - 10 Micron Adjusting Knob: ABS plastic