Hattersley 970WG PN16 Butterfly Valve - Gearbox Operated

**PREL104013 High Capacity Potable Water Pressure Relief Valve** The PREL104013 High Capacity Potable Water Pressure Relief Valve is engineered to release water from the system at a predetermined pressure, effectively managing cold water over-pressurisation in unvented cylinders. Designed for high flow rates, this valve is particularly suitable for larger capacity systems. The Reliance Valves 104 Series provides reliable protection for unvented systems against over-pressurisation. Each valve is pre-set and securely locked to a specific pressure—if the system pressure surpasses this limit, the valve will lift from the seat, allowing water to discharge safely to waste. The valve's outlet connection is sized one inch larger than the inlet, ensuring optimal flow capacity during high discharge demands. As the primary safety device in an unvented system, these valves offer peace of mind and robust performance. Available in various pressure settings from 3.5 to 8 bar, and with multiple connection sizes for ease of installation, the PREL104013 is a versatile solution for any plumbing system. **Features and Benefits:** - **High Flow Design**: Ideal for larger capacity systems. - **Easy Maintenance**: Quick removal of the single-piece cartridge for cleaning or replacement. - **Durable Diaphragm**: Enhanced resistance against scale build-up ensures longevity. - **Over-Pressure Protection**: Guards against potentially damaging over-pressurisation. - **Flexible Installation**: Multiple connection options cater to diverse installation requirements. - **Adjustable Pressure Range**: Set relief pressure from 3.5 to 8.0 bar. - **Cold Water Usage**: Specifically designed for use with cold water. **Specifications:** - **Size**: 1.1/4" x 1.1/2" - **Connections**: BSP Female Inlet x BSP Female Outlet - **Materials**: Hot pressed DZR Brass - **Medium**: Cold Water - **Set Pressure**: 8 Barg - **Temperature Rating**: +140 degrees Celsius - **Product Code**: PREL104013 Ensure your unvented system is protected with the reliable performance of the PREL104013 High Capacity Potable Water Pressure Relief Valve. Perfect for both residential and commercial applications, this valve is essential for maintaining a safe and efficient plumbing system.

The Resideo Flanged Two-Way Linear Valve (DF) is a single-seated valve designed for the modulating control of hot or chilled water, as well as steam, within heating, ventilation, and air conditioning (HVAC) systems. These valves are specifically engineered for high differential pressure applications, such as district heating. They can be seamlessly operated by the linear actuators in the ML64... and ML74... series.

Special Features:

• Pressure-balanced plug for enhanced stability
• Nodular iron body with durable flanged end connections
• Low seat leakage rate to ensure efficiency
• Metal-to-metal seating for longevity and reliability
• Self-adjusting packing that maintains performance
• Precise positioning for cutting-edge temperature control
• Direct-coupled electric configuration for straightforward installation

Product Codes:

DF15B0.25CI, DF15B0.4CI, DF15B0.4NI, DF15B0.63CI, DF15B0.63NI, DF15B1.0CI, DF15B1.0NI, DF15B1.6CI, DF15B1.6NI, DF15B2.5CI, DF15B2.5NI, DF15B4.0CI, DF15B4.0NI, DF15C0.4, DF15C0.63, DF15C1.0, DF15C1.6, DF15C2.5, DF15C4.0, DF15D0.25, DF15D0.4, DF15D0.63, DF15D1.0, DF15D1.6, DF15D2.5, DF15D4.0, DF20B4.0CI, DF20B6.3CI, DF20B6.3NI, DF20C6.3, DF20D6.3, DF25B10CI, DF25B10NI, DF25C10, DF25D10, DF32B16CI, DF32B16NI, DF32C16, DF32D16, DF40B25CI, DF40B25NI, DF40C25, DF40D25, DF50B40CI, DF50B40NI, DF50C40, DF50D40, DF65B63CI, DF65B63NI, DF65C63, DF65D63, DF80B100CI, DF80B100NI, DF80C100, DF80D100, DF100B160CI, DF100B160NI, DF100C160, DF100D160, DF125B250CI, DF125B250NI, DF125C250, DF150B360CI, DF150B360NI

This expertly crafted valve exemplifies reliability and performance, making it an ideal choice for professionals seeking efficiency in HVAC systems.

The Kunkle Bailey 716ESD Safety Relief Valve (featuring an EDPM disc with a Dome Top) is specifically designed for water and gas applications (not suitable for air). This safety relief valve boasts a top-guided, unobstructed seat bore which allows for full lift capability, ensuring maximum discharge performance. The Bailey 716 safety relief valve is certified to BS6759 parts 1, 2, and 3, making it an excellent choice for the protection of vessels, pipelines, and equipment operating with hot or cold water, air, steam, and various other gases and liquids.

Specifications:

Sizes: 1/2" x 3/4" to 2" x 3"

Connections: BSP Female Inlet x BSP Female Outlet

Materials: Bronze body, Chrome Vanadium spring

Disc: EDPM

Medium: Suitable for gases and liquids, including air and hot water

Set Pressure: 0.35 to 32 Barg (size dependent)

Temperature Range: -29 to +150°C Maximum

Notes: Also referred to as IMI Bailey Birkett valves, Kunkle Emerson valves, and Safety Systems UK valves.

Optimise your system's safety with the Kunkle Bailey 716ESD Safety Relief Valve—ensuring reliable and efficient pressure relief for various applications.