312 Series Regulators
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Product Details
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The 312 Series dual stage regulators are intended for primary pressure control of non-corrosive, liquefied, or high purity (up to grade 5.5) 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.
Typical Applications
- EPA Protocol Gases
- Gas and Liquid Chromatography
- High Purity Carrier Gases
- Zero, Span, and Calibration Gases
- High Purity Chamber Pressurization
Features
- CAPSULE® Seat increases serviceability and life
- Low Wetted Surface Area minimizes purge requirements
- 316L Stainless Steel Diaphragm prevents inboard diffusion
- Convoluted Diaphragm provides smooth pressure changes
- Compact Design permits easy transport and system integration
- 10-Micron Filtration in Both Stages offers fail-safe seat performance
- Field-Adjustable Pressure Limit safeguards downstream equipment
- Pressure Ranges 0-15 to 0-250 PSIG (0-1 to 0-17 BAR) facilitates a range of applications
Specifications
- Maximum Inlet Pressure (bare body): 3000 PSIG (210 BAR); optional 3500 PSIG (240 BAR) or 4500 PSIG (310 BAR)
- 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 See flow curves attached
- Helium Leak Integrity: 1 x 10-8 scc/sec
- Internal Seals: PTFE
- Ports (bare body): 1/4 in FPT
- Weight (312 2331-580): 4.4 lbs (1.98 kg)
- Conformances: Cleanliness meets or exceeds CGA G-4.1; PED 2014/68/EU; ANSI/ASME B40.1; CRN OH5216
312 Series Regulators
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