FSGGRG - Graphite Rupture Discs

FSGGRG - Graphite Rupture Discs

The FSGGRG Graphite Rupture Discs are replaceable and designed for mounting on either graphite holders (rated for pressures up to 10 bar g) or metal holders (up to 15 bar g). These highly versatile discs cater to a wide range of applications and are particularly efficient in handling aggressive fluids while exhibiting low sensitivity to temperature variations at bursting pressures. Constructed from ultra-pure graphite, the discs are impregnated with phenolic resins, which enhance their impermeability. When ruptured, they provide a complete opening while fragmenting into manageable pieces. For rupture pressures below 1.7 barg, vacuum support is necessary; however, these discs are self-supporting at higher pressure calibrations.

Specifications

  • Sizes: 1" (DN25) to 8" (DN200)
  • Materials: Graphite and Stainless Steel
  • Rupture Pressure: 0.017 – 15 bar g (varies with diameter)
  • Tolerance: +/- 5% to +/- 20%
  • Temperature Range: -60 °C to 180 °C
  • Operating Margin: Up to 75%
  • Vacuum Support: Not Available
  • Fragmentation: Yes
  • Use Under Valve: No
  • Corrosion Resistance: Excellent - can be protected with a PTFE membrane
  • Linings: None
  • Seals: Available in graphite and cork
  • Rupture Sensor: Electrical
  • PED Certification (CE Mark): Available

To request our Rupture Disc Form, please download it and send your completed form to sales@flowstar.co.uk.

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Other Products and Services from Flowstar (UK) Ltd

Hattersley Fig 1732L PN20 Fixed Orifice Double Regulating Valve - Low Flow - DN15

Hattersley Fig 1732L PN20 Fixed Orifice Double Regulating Valve - Low Flow - DN15

The Hattersley Fig 1732L Fixed Orifice Double Regulating Valve (FODRV - Low Flow) is a high-performance commissioning solution designed for precise flow regulation. It boasts an impressive accuracy of ±5% across all settings, making it ideal for various applications. The integral fixed orifice design not only enhances accuracy, but also simplifies installation by reducing connections, ultimately leading to lower installation costs.

Features & Benefits

  • Delivers precise and accurate flow regulation
  • Easy operation with a handwheel and clear numerical indicator
  • Combines integral orifice with built-in test points, eliminating the need for separate DRV and metering station
  • WRAS Approved for use with potable water at temperatures up to 85°C
  • Ensures positive flow control across all handwheel settings
  • Maintains ±5% accuracy for both flow regulation and measurement

Specifications

  • Complies with BS7350: 1990
  • Operated via a handwheel
  • Features a numerical indicator for ease of use
  • Includes an inside screw non-rising handwheel
  • Equipped with a characterised regulating disc
  • Contains an integral fixed orifice
  • Supplied with two Figure 631 test points
  • Threaded end connections
  • Available in sizes ranging from 1 to 2" taper threaded
  • Conforms to BS EN 10266 (ISO 7-1), formerly BS 21
  • Sizes 1/2" & 3/4" conform to ISO 228 parallel
  • WRAS Approved Product

Pressure/Temperature Ratings (Threaded Ends)

  • BS 7350 PN20
  • 17.2 bar at 120ºC
  • 20 bar from -10 to 100ºC

Compression Ends

  • 5 bar at 120ºC
  • 6 bar at 110ºC
  • 10 bar at 65ºC
  • 16 bar from -10 to 30ºC
  • WRAS approval temperature range: -10 to 85ºC

For reliable and accurate flow regulation, choose the Hattersley Fig 1732L Fixed Orifice Double Regulating Valve—engineered for efficiency and approved for potable water use.

Reliance RWC 24 Litre Aquasystem Potable Expansion Vessel Pre Set 3 Bar - XVES050060

Reliance RWC 24 Litre Aquasystem Potable Expansion Vessel Pre Set 3 Bar - XVES050060

**Stainless Steel Expansion Vessel for Potable Water Applications** Introducing the Reliance Valves Aquasystem Replaceable Membrane Potable Water Expansion Vessels, expertly crafted for efficient water systems. These stainless steel expansion vessels are specifically designed to manage additional loads as water heats up and expands, ensuring optimal performance in both sealed heating and cold water systems. By preventing pressure build-up, these vessels maintain safe operating levels, providing peace of mind for users. Equipped with a unique replaceable membrane, our expansion vessels protect against corrosion and contamination, ensuring that your water remains safe for consumption. This innovative design allows for straightforward servicing in situ, meaning the vessel does not need to be removed, enabling quick maintenance with minimal disruption. **Features and Benefits:** - **Corrosion Resistance:** The stainless steel bolted flange ensures durability and prevents corrosion. - **Optimised Flow:** An extra-wide membrane opening minimises noise caused by restricted water flow. - **Corrosion Prevention:** The internal membrane keeps water away from the steel shell, preventing internal corrosion. - **Versatile Range:** Available in capacities from 2 to 5000 litres, catering to all application needs. - **Easy Servicing:** Each version includes a replaceable membrane for hassle-free servicing without removal. - **Pre-Charge Valve:** Conveniently top up air pressure with the integrated pre-charge valve. - **Temperature Suitability:** Ideal for both hot and cold water applications. **Specifications:** - **Capacity:** 24 Litres - **Colour:** White - **Pre-Set Pressure:** 3 Bar - **Max Pressure:** 10.0 Bar - **Minimum Temperature:** -10°C - **Maximum Temperature:** 99°C - **Height:** 489mm - **Diameter:** 280mm - **Water Connection:** 3/4" MBSP - **Product Code:** XVES050060 **Materials:** - **Shell:** Epoxy Coated Shell - **Membrane:** EPDM - **Bolted Flange:** Stainless Steel **Standards and Approvals:** - WRAS approved for capacities up to 1000 litres - CE marked in compliance with Directive PED 97/23/CE - TUV Certified - Models between 1000 and 5000 litres meet BS 6920 materials standards Enhance your water system's safety and reliability with our high-quality stainless steel expansion vessels. Order now to ensure a dependable supply of potable water!
Valfonta PRV44 Steam Reducing Valve

Valfonta PRV44 Steam Reducing Valve

The Valfonta PRV44 Steam Reducing Valve is a self-acting pressure regulating valve designed to maintain a consistent downstream pressure, even in the presence of fluctuating inlet pressures. Its user-friendly design allows for easy adjustment without the need for ongoing maintenance, and it can be installed in any orientation.

Specifications

Sizes: 1/2" (DN15), 3/4" (DN20), 1" (DN25)
Connections: Female BSP Inlet x Female BSP Outlet (Flanged option available on request)
Materials: Stainless Steel
Joints & Seals: Graphited PTFE
Medium: Suitable for liquids, gases, and steam
Inlet Pressure (Max): 25 Barg
Outlet Pressure Range: Available spring ranges: 0.5 to 3 Barg, 1 to 8 Barg, and 4 to 12 Barg
Temperature: -10 to 210 ºC
Approvals: PED 97/23/CEN
Notes: Kvs value ranges from 0.2 to 3.5 m³/h

This steam reducing valve is ideal for various applications, ensuring reliable performance while enhancing system efficiency. Its robust construction and versatile installation options make it a top choice for pressure management solutions in industrial settings.
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.