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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Resideo Shut-Off Two-Way Linear Valve (DI & DE)

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The Resideo Shut-Off Two-Way Linear Valve (DI & DE) is a single-seated control or shut-off two-way linear valve designed for hot water, chilled water, and saturated steam (in valves featuring a stainless steel plug), as well as superheated steam (in valves equipped with a stainless steel plug). This valve is ideal for use in heating, ventilation, and air conditioning systems and open circuit applications. It is operated by electric linear actuators from the ML64... and ML74… series.

SPECIAL FEATURES

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  • Brass body with internal threaded end connections (type DI)
  • Low seat leakage rate
  • Self-adjusting packing
  • Precise positioning for optimal temperature control
  • Consistent total flow throughout the entire plug travel

Product Codes:

DE15B0.63, DE15B1.0, DE15B1.6, DE15B2.5, DE15B4.0, DE20B6.3, DE25B10, DE32B16, DE40B25, DE50B40

DI15B0.63, DI15B0.63SS, DI15B1.0, DI15B1.0SS, DI15B1.6, DI15B1.6SS, DI15B2.5, DI15B2.5SS, DI15B4.0, DI15B4.0SS,

DI20B6.3, DI20B6.3SS, DI25B10, DI25B10SS, DI32B16, DI32B16SS, DI40B25, DI40B25SS, DI50B40, DI50B40SS

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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.