Hattersley Fig 973G PN16 Double Regulating Valve - Gearbox Operated

## F300 Storage Tank Pressure Relief Valve The F300 Storage Tank Pressure Relief Valve is meticulously designed to ensure optimal safety and efficiency for your storage tanks and vessels. Available in sizes ranging from 2" to 12" (50 mm to 300 mm) with flanged connections, the valve operates effectively across a pressure range of +2 to 100 mBarg and a vacuum range of -2 to -60 mBarg. Constructed from high-quality materials, including aluminium, carbon steel, and stainless steel, the F300 Series offers robust performance in challenging environments. ### Specifications - **Standard Pressure Settings**: +2 to 100 mBarg - **Standard Vacuum Settings**: -2 to -60 mBarg - **Size Range**: 2” (50 mm) to 12” (300 mm) - **Standard Body Materials**: Aluminium, Carbon Steel, Stainless Steel - **Standard Trim Material**: Stainless Steel - **Diaphragm Material**: FEP - **Removable Seats**: Yes - **Standard Full Form Flanges**: ANSI / DIN - **Lightweight Design**: Yes ### Features - **Cost-Effective Maintenance**: The lightweight design ensures easy handling, while interchangeable components allow for straightforward replacement of standard parts, reducing maintenance costs. - **Quality Assurance**: Every F300 Valve undergoes rigorous factory testing and is fully certified to ensure reliability and safety. - **Self-Draining Design**: Each valve is engineered to allow condensate to drain away effectively from all seating areas, preventing any build-up. - **Low Leakage Performance**: Our standard seating design guarantees minimal leakage of less than 1 scfh at 90% of the set pressure, ensuring operational efficiency. - **Durable Internal Parts**: Internal components are crafted from stainless steel as standard, with non-standard materials available upon request for specific applications. - **Versatile Connections**: All valves are supplied with full form flanges to meet your individual requirements, with alternative connection options available upon request. - **Custom Solutions for Special Applications**: The F300 Series can accommodate various specialised needs. We offer exotic materials such as Hastelloy, Monel, and various plastics suited for the most hazardous environments. Additionally, we can apply special coatings for extreme service conditions. For low-temperature operations, internal parts can be PTFE coated to prevent seizure. ### Conclusion Invest in the F300 Storage Tank Pressure Relief Valve for unparalleled safety and reliability in your storage systems. With custom options available, it's the perfect solution for any challenging environment. Don't compromise on safety—choose the F300 Series for your pressure and vacuum relief needs.

Refrigeration Flow Indicators and Sight Glasses facilitate the continuous monitoring of liquid levels within your refrigeration system. These essential components ensure optimal performance and efficiency, providing peace of mind for your operations.

Specifications:

• Sizes: Ranging from 3/8" to 4"
• Connections: Available in Flanged or Screwed options
• Materials: Constructed from Steel or Stainless Steel, depending on the specific type
• Medium: Suitable for glycol-based cold brine refrigerants as per EN 378 p. 1, including NH3, R134a, R290 (propane), R507, blends with refrigerant oil, as well as neutral gas and liquid media
• Pressure Rating: PS 25, PS 40
• Temperature Range: -60°C to +120°C Max
• Design: Tailored to meet your specific needs
• Notes: Please consult with our team for additional guidance and specifications.

Optimise your refrigeration system with our high-quality Flow Indicators and Sight Glasses, designed for durability and reliability under a variety of operational conditions.

**FSY90RA Reverse Acting Rupture Discs: Advanced Safety Solutions for Pressure Management** The FSY90RA Reverse Acting Rupture Discs are expertly engineered compression or reverse circumference micro-scored discs designed for optimal reliability. Featuring a unique camber, the convex disc maintains its shape under normal operating pressure and only modifies when reaching reverse pressure. These cutting-edge devices can handle pressure ratios of up to 95% between operating and rupture pressure, ensuring thousands of operational cycles without compromising reliability. Upon activation, the FSY90RA disc ruptures instantaneously along the pre-scored line, producing no fragments and achieving a full opening in just a few thousandths of a second. Unlike traditional rupture discs, the FSY90RA offers reduced sensitivity to temperature fluctuations, making them particularly advantageous in applications subject to significant temperature variations. They are especially effective for managing both gas and liquid processes (when a special gas cushion is present) and are ideal for protecting pressure relief valves. The FSY90RA discs are available in a variety of materials and thicknesses, providing exceptional resistance to corrosion. For even greater protection, a PTFE lining can be applied to the process side of the disc. Moreover, vacuum support is not necessary, enhancing installation versatility. **Specifications:** - **Sizes:** 1" (DN25) to 8" (DN200) - **Materials:** Stainless Steel, Alloy 201, Alloy 400, Alloy 600, Alloy 625, Alloy C276, Titanium - **Rupture Pressure:** 0.2 - 70 bar g (depending on material and diameter) - **Tolerance:** +/- 5% to +/- 20% - **Temperature Range:** -196°C to 600°C - **Operating Margin:** 90%, with the potential to reach 95% based on service conditions - **Fragmentation:** None (no fragmentation upon rupture) - **Suitable for Use Under Valves:** Yes - **Corrosion Resistance:** Excellent - **Linings Available:** Yes - **Containers:** FSHR/A, FSHR/P, FSHR/F, FSHTC - **Rupture Sensors:** Electrical, Magnetic, Inductive, Optical - **PED Certification (CE Mark):** Available - **ATEX EX II 2 GD Certification:** Available To order or for more information, please download our Rupture Disc Request Form and send the completed document to sales@flowstar.co.uk. **Optimise your pressure management systems with FSY90RA Reverse Acting Rupture Discs – the reliable choice for safety and efficiency.**