FSSCRA - ASME Approved Rupture Discs
The FSSCRA rupture disc is an ASME-approved compression or reverse-acting disc featuring precision micro-scored petals with four, six, or more radial scores. This design ensures rapid, full opening while reducing the risk of petal separation, making the disc suitable for both low and high burst pressure applications.
Designed for use with gases and liquids (with a gas cushion), the FSSCRA performs reliably in cycling and pulsating conditions without compromising safety margins. The disc responds to overpressure within milliseconds and opens cleanly without fragmentation, making it particularly well suited for protecting safety relief valves.
With an operating-to-burst pressure ratio of up to 95%, the FSSCRA delivers excellent efficiency and stability. It offers strong corrosion resistance, which can be further enhanced with an optional PTFE lining, and in many applications can operate under full vacuum without the need for additional supports. The design complies with ASME Section VIII, Division 1 requirements.
Key Specifications:
Sizes: 1" (DN25) to 36" (DN900)
Materials: Stainless steel, Alloy 201, 400, 600, C276, Titanium
Burst Pressure Range: 0.41–137 bar g (6–2000 psi g), depending on size and material
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
Use Under Valve: Yes
Corrosion Resistance: Very good
Linings: Optional
Holder Options: FSHR/A, FSHR/P, FSHR/F, FSHTC
Rupture Detection: Electrical, Magnetic, Inductive, Optical
Certifications: ASME (UD Stamp), PED (CE), ATEX EX II 2 GD
Other Products and Services from Flowstar (UK) Ltd
CONCOA 427 Series Regulator
The CONCOA 427 Series two-port, stainless steel barstock regulator provides single-stage secondary pressure control for ultra-high purity gases or point-of-use control in high-purity gas systems. Front and rear panel mountable, it can connect via flexible hose for versatile configuration. Features include metal-to-metal diaphragm seal, CAPSULE® seats with 360° filtration, butt-welded face seal connections for superior leak integrity, cleanroom assembly, helium leak-checked integrity, and captured vent bonnet. Constructed from 316L stainless steel body, chrome-plated brass bonnet, PTFE seats and internal seals, 10-micron 316 stainless steel filter, Cv 0.1, 1/4 in face seal ports. Max inlet pressure 3000 PSIG (210 BAR), temperature range -40°F to 140°F (-40°C to 60°C). Conforms to CGA G-4.1, PED 2014/68/EU, and CRN OH5216.
Reliance RWC Red 2116 Rubber Seat Pressure Relief Expansion Cartridge 2 Bar ZRC209020
Replacement cartridge for Reliance Valves Pressure Relief Valves. Our Reliance Valves Pressure Relief Valve Cartridges are single-piece replacements designed for most units and combination relief valves. Easy to install, these cartridges come with a durable EPDM boot that withstands high system temperatures. Click here to explore our complete range of Reliance (RWC) Relief Valves.
Features and Benefits:
- Durable EPDM boot ensures a secure seal once fitted to the valve body.
- Compatible with Reliance Valves heating pressure relief valves.
- Designed exclusively for use with central heating systems.
Specification
- Size: 1/2" & 3/4"
- Pressure: Preset at 2 bar
- Part Number: ZRC209020
- Type: Replacement cartridge for heated system pressure relief valves
Bailey 707ED Safety Relief Valve Female x Female (EDPM Disk with Dome Top – Suitable for Water & Gas Service (not Air))
The Kunkle Bailey 707ED Safety Relief Valve with Female x Female connections features a top-guided design that optimises flow with an unobstructed seat bore and high lift capability. This valve is certified to BS EN 4126 Part 1 (BS6759 pt 1:2:3), making it ideal for applications involving air/gas, steam or hot water (exceeding 212°F or 100°C), as well as process liquids, depending on the specific model purchased. We ensure that the valve is set and tested to meet your specified requirements, providing you with a pressure test certificate prior to dispatch.
Specifications
Sizes: 1/2" to 2"
Connections: BSP Female Inlet x BSP Female Outlet
Materials: Bronze body, Chrome Alloy spring
Disc: EPDM
Medium: Air, Gases, Liquids
Set Pressure: 0.35 to 24 Barg
Temperature: -20 to +95°C
Notes: WRAS approved when equipped with an EPDM disc. This valve is also known by several names, including IMI Bailey Birkett valves, Kunkle Emerson valves, and Safety Systems UK valves.
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.