CONCOA 203 Series Regulator
The CONCOA 203 Series is a chrome-plated forged brass, single-stage regulator designed for low-pressure delivery of non-corrosive, liquefied, or high-purity inert gases (up to grade 4.5). It provides precise final pressure control from low inlet pressures, with adjustable delivery as low as 0.1 PSIG (7 mBAR) in 0.05 PSIG (4 mBAR) increments, ideal for applications requiring atmospheric or sub-5 PSIG (350 mBAR) outputs.
Features:
Fine-adjusting screw for precise pressure control
316L stainless steel diaphragm prevents inboard diffusion
CAPSULE® seat design with 360° integral filtration
Helium leak-tested for integrity
Specifications:
Max inlet pressure: 200 PSIG (14 BAR)
Body: Chrome-plated forged brass; Bonnet: Chrome-plated die-cast zinc
Gauges: 2½" (63 mm) steel with brass connections
Seat: PTFE; Filter: 10-micron sintered bronze
Temperature range: -40°F to 140°F (-40°C to 60°C)
Cv: 0.02; Diaphragm: 316L stainless steel
Helium leak integrity: 1 × 10⁻⁸ scc/sec
Internal seals: PTFE; Ports: 1/4" FNPT
Compliance: Meets/exceeds CGA G-4.1, PED 2014/68/EU, ANSI/ASME B40.1, CRN OH5216
Other Products and Services from Flowstar (UK) Ltd
FSSCRRA - Reverse Acting Rupture Discs
Introducing the FSSCRRA Reverse Acting Rupture Discs – advanced compression or reverse discs featuring micro-scored calibrated sections that open in the form of petals. These discs are designed with 4, 6, or more radial scores, allowing for optimal opening and significantly reducing the risk of petal detachment. The FSSCRRA rupture discs are ideally suited for both high and low bursting pressures and can be safely utilised with gases and liquids (when a special gas cushion is present), even under cycling and pulsating conditions, without compromising safety margins. Reacting to excessive pressure within mere milliseconds, FSSCRRA rupture discs operate without fragmentation, making them particularly effective for the protection of safety valves. These rupture discs boast an impressive operating to bursting pressure ratio of up to 95% and demonstrate excellent corrosion resistance. This resistance can be further enhanced with a PTFE lining. Notably, FSSCRRA discs can operate under absolute vacuum conditions without requiring additional supports.
Specifications
- Sizes: 1" (DN25) to 36" (DN900)
- Materials: Stainless Steel, Alloy 201, Alloy 400, Alloy 600, Alloy 625, Alloy C276, Titanium
- Rupture Pressure: Ranges from 0.41 bar g (6 psi g) to 137 bar g (2000 psi g) depending on material and diameter
- Krl: 0.48
- Tolerance: +/- 5% to +/- 20%
- Temperature Range: -196 °C to 480 °C
- Operating Margin: 90% - up to 95% depending on service conditions
- Fragmentation: None (will not break apart upon bursting)
- Use Under Valve: Yes
- Corrosion Resistance: Very good
- Linings: Yes
- Container Options: FSHR/A, FSHR/P, FSHR/F, FSHTC
- Rupture Sensor Options: Electrical, Magnetic, Inductive, Optical
- ASME Certification (UD Stamp): Available
- PED Certification (CE Stamp): Available
- ATEX EX II 2 GD Certification: Available
To request more information about our rupture discs, please download our Rupture Disc Request Form and send the completed form to sales@flowstar.co.uk.
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Flowstar (UK) Ltd
Wiltshire Road, Kingston-upon-Hull, East Riding of Yorkshire, HU4 6PA, United Kingdom
Flowstar (UK) Ltd is a leading global supplier of safety, relief, and reducing valves. With strong partnerships across major manufacturers, we deliver precise, reliable valve solutions tailored to your needs. Email enquiries to sales@flowstar.co.uk or call us on +44 (0)1482 601030.