FSKRDA - ASME Approved Rupture Discs

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

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Altecnic / Caleffi Pressure Relief Valve with Circlip Connection 6 Bar - F0000412

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

Niezgodka Type 19.2 Safety Valve - Stainless - Cap

**Product Specification** **Size Options:** - 3/4" x 1.1/2" - 1" x 1.1/2" - 1.1/4" x 1.1/2" - 1.1/2" x 1.1/2" **Connections:** - Screwed BSPP or NPT **Materials:** - **Nozzle:** Stainless Steel - **Spring Bonnet:** Stainless Steel - **Disk:** Available in Metal, Viton, or Nylon (dependent on pressure) - **Joints & Seals:** NBR, FPM, EPDM (varies by model) **Head Type:** - C (Gas tight cap) **Applications:** - Suitable for steam, gases, and liquids **Set Pressure Range:** - 0.05 to 130 Barg (dependent on size) **Temperature Range:** - -60 to 280°C **Design Certification:** - TUV **Additional Information:** We offer various other variants (please see downloads), including options for different (a) o-ring and disc materials, (b) NPT connections, (c) orifice sizes, and (d) head types. For further assistance and detailed specifications, please do not hesitate to contact us. Optimised for performance and reliability, our product is ideal for a range of industrial applications. Ensure safety and efficiency in your operations with our high-quality components.
Reliance RWC 12 Litre Aquasystem Potable Expansion Vessel Pre Set 3 Bar With Bracket - XVES050045

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

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.