CONCOA 308 Series Regulator

The CONCOA 308 Series is an electrically-heated, single-stage regulator designed for high-flow carbon dioxide and nitrous oxide in laboratory applications. To prevent freeze-up caused by dry ice formation at high flows, it features three integral 50-watt heating cartridges, a primary thermostat for automatic temperature control, and a secondary safety thermostat cutout that heats the regulator seat directly. The 308 Series can be factory-configured with options such as single-station manifolds, purge, low-pressure alarms, or multiple inlets.

Features:

• Three 50W heaters maintain gas flows up to 350 SCFH (165 LPM)

• NEMA 4 housing for safe indoor/outdoor use

• 316L stainless steel diaphragm prevents inboard diffusion

• CAPSULE® seat design with 360° integral filtration

• Low wetted surface area reduces purge requirements

• Spectrometric helium leak-tested for integrity

Specifications:

• Max inlet pressure: 3000 PSIG (210 BAR); optional 3500 PSIG (240 BAR) or 4500 PSIG (310 BAR)

• Body & bonnet: Chrome-plated brass barstock

• Gauges: 2" (50 mm) plated case

• Seats: PTFE; PCTFE for higher-pressure options

• Filter: 10-micron sintered bronze

• Diaphragm: 316L stainless steel; Cv: 0.1

• Helium leak integrity: 1 × 10⁻⁸ scc/sec

• Electrical housing: NEMA 4; thermostat range: 95–120°F (35–49°C)

• Heaters: 3 × 50W; Power: 115V AC (100–127V 50/60Hz, 150W) or 230V AC (197–252V 50/60Hz, 150W)

• Internal seals: PTFE; Ports: 1/4" FNPT

• Compliance: Meets/exceeds CGA G-4.1, PED 2014/68/EU, CE (230V models), ANSI/ASME B40.1, CRN OH5216