Hattersley 970W PN16 Butterfly Valve - Lever Operated

The Altecnic / Caleffi 311 Safety Valve - 311525 is designed for use in domestic hot water systems to safeguard the hot water cylinder, as well as in heating systems to protect boilers and other essential components. This safety valve is carefully selected based on the required set pressure. When system pressure increases and reaches the discharge threshold, the valve automatically opens, releasing excess pressure to the atmosphere. This crucial mechanism prevents the pressure within the system from escalating to hazardous levels, ensuring the safety of the boiler, hot water storage cylinder, and anyone in the surrounding area.

Specifications

Size: 3/4" x 3/4"
Connections: BSP Female Inlet x BSP Female Outlet
Materials: Brass
Medium: Air and Water
Set Pressure: 2.5 Barg
Discharge Flow Rate: 124.4 kg/hr
Max Boiler Rating: 72.3 kW
Temperature Range: +5 to +110 °C
Product Code: 311525
Certifications: WRAS approved, CE marked

Ensure the longevity and safety of your domestic hot water and heating systems with the reliable performance of the Altecnic / Caleffi 311 Safety Valve. Shop now to enhance your system’s safety standards!

The AURA EXS is a high-precision single-stage regulator designed for sub-atmospheric control and low-flow positive pressure applications. Its innovative hybrid spring system, paired with an oversized dual-surface diaphragm, allows for precise pressure regulation ranging from 0 psia to 100 psig, delivering exceptional accuracy in both vacuum and positive pressure scenarios. Central to the EXS is AURA's unique encapsulated seat design, which combines multiple moving parts into a single assembly. This groundbreaking design simplifies maintenance, reduces potential failure points, and ensures long-lasting reliability. The regulator features a 10-micron, 360° filter that offers superior impurity removal, far surpassing that of standard pressed-in discs. Unlike conventional regulators that only filter at the pipeline port, the EXS provides comprehensive protection across all inlet ports. Each EXS regulator is meticulously assembled in a Class 100 cleanroom as a complete unit, with all gauges, valves, and fittings pre-installed. The assembly undergoes thorough cleaning for oxygen service, is 100% helium leak tested, and is subjected to rigorous flow and functional testing to meet the most demanding application requirements. For particularly aggressive environments, the EXS can be equipped with Dursan® LS inert coating technology, which ensures exceptional resistance to acidic and caustic media, often outperforming more exotic alloys. Combining precise control, robust construction, and advanced corrosion resistance, the AURA EXS stands out as the perfect choice for engineers seeking reliable solutions for sub-atmospheric and low-flow applications.

**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.