FSKRDA - ASME Approved Rupture Discs
The FSKRDA rupture discs use advanced sector technology, ensuring the convex disc camber remains unchanged by operating pressure until reverse pressure is reached. Designed for high reliability, they handle up to 95% operating-to-burst pressure ratios and thousands of cycles without compromising performance. On activation, the disc opens fully along the scored line within milliseconds, without fragmentation. These discs are less sensitive to temperature variations, making them ideal for applications with wide thermal swings.
Their innovative design allows safe use with liquids only, including cycling and pulsating conditions, without reducing safety margins. They are particularly suitable for isolating safety valves. A wide range of materials and thicknesses provides excellent corrosion resistance, further enhanced with optional PTFE linings. Vacuum support is not required, and the discs can withstand high counter-pressures.
Specifications:
Sizes: 1" (DN25) to 36" (DN900)
Materials: Stainless steel, Alloy 201, 400, 600, C276, Titanium
Rupture Pressure: 0.41–137 bar g (6–2000 psi g)
Krl: 0.48
Tolerance: ±5% to ±20%
Temperature Range: –196°C to 480°C
Operating Margin: 90–95%
Fragmentation: None
Use Under Valve: Yes
Corrosion Resistance: Very good
Linings: Optional PTFE
Holder Options: FSHR/A, FSHR/P, FSHR/F, FSHTC
Rupture Sensor: Electrical, Magnetic, Inductive, Optical
Certifications: ASME (UD Stamp), PED (CE), ATEX EX II 2 GD
Notes: Compliant with ASME Section VIII, Division 1 requirements
Other Products and Services from Flowstar (UK) Ltd
Altecnic / Caleffi Pressure Relief Valve with Circlip Connection 6 Bar - F0000412
The Altecnic / Caleffi Relief Valve - Circlip Inlet - F0000412 is specifically designed for domestic hot water systems, providing essential protection for hot water cylinders and heating systems, including boilers and other vital components. This relief valve is chosen based on the required set pressure, and as system pressure increases, it opens to discharge excess pressure into the atmosphere when the predetermined threshold is reached. This crucial function prevents potentially hazardous pressure levels from accumulating within the system, ensuring the safety of both the boiler, hot water storage cylinder, and personnel in the vicinity.
Specification:
- Materials: Brass
- Set Pressure: 6 Barg
- Product Code: F0000412
- Notes: Compatible with MK3 Caleffi Multibloc
Invest in the Altecnic / Caleffi Relief Valve F0000412 for reliable pressure regulation and enhanced safety in your domestic hot water and heating systems.
Niezgodka Type 19.2 Safety Valve - Stainless - Cap
Reliance RWC 12 Litre Aquasystem Potable Expansion Vessel Pre Set 3 Bar With Bracket - XVES050045
Introducing our Stainless Steel Expansion Vessel for potable water applications, the Reliance Valves Aquasystem Replaceable Membrane Potable Water Expansion Vessel. This expertly designed vessel efficiently accommodates the additional load within a water system as the water heats and expands. Crucially, it helps maintain safe operating levels by preventing pressure build-up in both sealed heating systems and cold water systems. Featuring a replaceable membrane, the vessel safeguards the water from corrosion and contamination, ensuring it remains safe for human consumption. The replaceable membrane also allows for straightforward servicing without the need for removal, enabling quick and efficient maintenance in situ.
Features and Benefits:
- Durable stainless steel bolted flange that resists corrosion
- Extra-wide membrane opening to minimise noise from restricted flow
- Internal membrane ensures no water contacts the steel shell, preventing internal corrosion
- Available in a wide range of sizes from 2 to 5000 litres, catering to all applications
- All models come with a replaceable membrane for easy servicing without removal
- Pre-charge valve for convenient air pressure adjustment
- Designed for use with hot and cold water only
Specifications:
- Capacity: 12 Litres
- Colour: White
- Pre-Set Pressure (Bar): 3
- Maximum Pressure (Bar): 10.0
- Minimum Temperature: -10°C
- Maximum Temperature: 99°C
- Height: 295mm
- Diameter: 280mm
- Water Connection: 3/4" MBSP
- Miscellaneous: Supplied complete with wall bracket accessories
- Product Code: XVES050045
Materials:
- Shell: Epoxy Coated Shell
- Membrane: EPDM
- Bolted Flange: Stainless Steel
Standards and Approvals:
- WRAS approved for up to 1000 litres
- CE marked in accordance with Directive PED 97/23/CE
- TUV Certified
- Materials for 1000 - 5000 litre models comply with BS 6920
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.