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.
Other Products and Services from Flowstar (UK) Ltd
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
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
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.