Five-port, chrome-plated brass barstock, dual stage cylinder regulator for high purity inert gas applications

The 312 Series regulator provides primary pressure control for non-corrosive, high purity (up to grade 5.5), or liquefied gases. Two stages of pressure regulation minimize pressure variation arising from inlet pressure changes, such as the depletion of the supply cylinder, making the 312 Series regulator ideal for applications where constant delivery pressure is critical. Available with a variety of options installed at the factory, the 312 Series regulator may be configured as a single station manifold with or without purge, low-pressure alarm, or multiple inlets.

Features

• 316L stainless steel diaphragm prevents inboard diffusion
• CAPSULE® seat design features integral 360° filtration in both stages
• Spectometric helium leak check verifies leak integrity

Specifications:

• Max inlet pressure (bare body): 3000 PSIG (210 BAR); 3500 PSIG (240 BAR) optional; or 4500 PSIG (310 BAR) optional
• Body: Chrome-plated brass barstock
• Bonnet: Chrome-plated, die-cast zinc
• Gauges: 2 in (50 mm) diameter plated case
• Seats: PCTFE (first stage); PTFE (second stage)
• Filter: 10-micron sintered bronze
• Temperature range: -40°F to 140°F (-40°C to 60°C)
• Diaphragm: 316L stainless steel
• Cv: 0.1
• Helium leak integrity: 1 x 10?8 scc/sec
• Internal seals: PTFE
• Ports (bare body): 1/4 in FNPT
• Conformances: Cleanliness meets or exceeds CGA G-4.1; ANSI/ASME B40.1; PED 2014/68/EU; CRN OH5216