Niezgodka Type 1.1 Relief Valve - SG Iron - Cap

**Features and Benefits of Our High-Quality Valves** - **Dezincification Resistant**: Our valves are designed to withstand dezincification, ensuring longevity and reliability. - **Lightweight and Compact**: These valves are easy to install and operate, making them a convenient choice for any project. - **Enhanced Leak Protection**: Experience improved leak prevention features for greater peace of mind. - **Increased Durability**: Our valves are more resistant to damage during installation, reducing the risk of future issues. - **Variety of Sizes**: Available in sizes ranging from 15mm to 28mm, catering to diverse plumbing needs. - **WRAS Approved**: Fully compliant with the Water Regulations Advisory Scheme for your added assurance. **Specifications** - **UK End Connection**: Fitted with compression ends in accordance with BS EN 1254-2:1998 for easy integration. - **Operator Feature**: Designed for use with T-Handle, Spanner, or Socket for versatile operation. - **Quarter Turn Operation**: Quick and efficient operation with a simple quarter turn. - **PTFE Seats and Stem Seal**: Provides enhanced sealing capabilities for reliable performance. - **WRAS Listed**: Certified for use with water meant for human consumption. - **Compatibility**: Suitable for Low Temperature Hot Water (LTHW), chilled, and wholesome (potable) water services. **Pressure and Temperature Rating** - For detailed pressure and temperature ratings, please refer to the datasheet. This high-quality valve solution ensures robust performance and compliance, making it suitable for a wide range of applications in plumbing and water services.

**Product Specification** **Sizes Available:** DN80, DN100 **Connections:** Flanged PN16 Inlet x Flanged PN16 Outlet **Materials Used:** Gunmetal Body / Bonnet: Cast Iron **Disk:** Joints & Seals: Diaphragm: NBR, Seals: NBR **Compatible Media:** Gases and liquids, including water, neutral non-viscous fluids, compressed air, nitrogen, and non-combustible gases. Please note: not suitable for steam. **Maximum Inlet Pressure:** 16 Barg **Outlet Pressure Range:** 0.5 to 9 Barg **Cv Range:** **Maximum Temperature:** 100°C **Certifications:** PED 97/23/CE category I **Additional Information:** (a) Built-in gauge ports (b) Minimum pressure drop between inlet and outlet: 1 Barg (c) For assistance with sizing, please use our sizing calculator available in the TECHNICAL INFO section of the menu above. --- This revised description is crafted with UK English terminology and aims to optimise for search engine rankings through strategic keyword placement.

**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.**