Hattersley 950WG PN16 Butterfly Valve - Gearbox Operated

The PREL101013 Reliance Water Controls (RWC) 101 Series Sealed Heating System Pressure Relief Valve is designed to safely discharge water from the system when a predetermined pressure is exceeded, providing essential protection against over-pressurisation in heating systems. The Reliance Valves 101 Series are widely utilised as a vital safety feature in sealed heating systems. Upon installation, the pressure relief valve is calibrated to the appropriate settings. When the system pressure elevates to this set limit, the valve activates, releasing water into the atmosphere to safeguard the system from reaching hazardous pressure levels that could potentially cause damage and present risks to individuals nearby.

**Features and Benefits:**

• The diaphragm design enhances resistance to scaling, thereby prolonging the lifespan of the valve.
• Easy removal of the single-piece cartridge allows convenient access for cleaning or replacing the cartridge.
• Flexible set relief pressure range from 2.0 bar to 6.0 bar aligns with diverse system design requirements.
• Available with FSBP or MBSP/FBSP connections, offering complete installation versatility.
• Designed exclusively for heating applications.

**Specifications:**

• Size: 3/4" x 3/4"
• Connections: BSP Female Inlet x BSP Female Outlet
• Materials: Hot pressed DZR Brass
• Medium: Water
• Set Pressure: 3 Barg
• Temperature: +140°C
• Product Code: PREL101013
• Notes: WRAS approved

This pressure relief valve is an essential component for ensuring the safety and efficiency of sealed heating systems. Invest in the PREL101013 Reliance Water Controls 101 Series for reliable performance and peace of mind.

**Product Features and Benefits** - Resistant to dezincification - Lightweight, compact design for easy installation and operation - Enhanced leak protection capabilities - Increased durability during installation - WRAS approved for hot and cold water systems up to 85°C - Conforms to BS EN 13547 standards - Available T-Handle sizes: ½” to 1” - Available Lockshield sizes: ½” to 2” **Specifications** - UK End Connection: BS EN 10226-2:2005 (formerly BS21 Taper) - US End Connection: ANSI B1.20.1:1983 - Operator Types: T-Handle, Spanner, Socket - Specification: DZR Brass (CW602N) Body Ball Valve, constructed in accordance with BS EN 13547, featuring a two-piece design, floating stainless steel SS304 ball, anti blow-out stem, PTFE seats, threaded ends, and rated for PN25. WRAS approved. - Suitable for use with Group 2 Gas, and Group 1 and Group 2 Liquids as defined by the Pressure Equipment Directive 2014/68/EU (as amended). - Not suitable for Group 1 Gases or unstable liquids. **Pressure and Temperature Ratings** - Operating Range: -10 to 100°C at 25 Barg - Maximum Temperature: 120°C at 21.8 Barg Optimise your plumbing solutions with our high-quality DZR Brass Ball Valves, designed for reliable performance and exceptional durability in your hot and cold water systems. With WRAS approval and compliance with safety standards, these valves are the ideal choice for both domestic and commercial applications.

The Altecnic / Caleffi 313 Relief Valve with Gauge (Product Code: 313560) is an essential component for domestic hot water systems and heating setups. Designed to safeguard hot water cylinders and boilers, this valve is tailored to ensure optimal safety by releasing excess pressure. Upon reaching the designated discharge pressure, the valve automatically opens, venting to the atmosphere and preventing hazardous pressure levels that could jeopardise the boiler, hot water storage cylinder, and nearby personnel. This model is supplied complete with a built-in pressure gauge for added convenience and monitoring.

Specifications

• Size: 3/4" x 3/4"
• Connections: BSP Female Inlet x BSP Female Outlet
• Materials: Brass
• Medium Compatibility: Air and Water
• Set Pressure: 6 Barg
• Discharge Flow Rate: 248.81 kg/hr
• Maximum Boiler Rating: 144.6 kW
• Operating Temperature Range: +5 to +110°C
• Product Code: 313560

Additional Information

• WRAS Approved
• CE Marked
• Pressure Gauge Included

Ensure the safety and efficiency of your heating systems with the Altecnic / Caleffi 313560 Relief Valve – the reliable choice for managing pressure in your domestic hot water applications.