Nickel Aluminium Bronze (NAB) Ball Valves

Introducing our stainless steel expansion vessels designed specifically for heating applications. The Reliance Valves Aquasystem Heating Expansion Vessels are available in sizes ranging from 2 litres to an impressive 5000 litres, with maximum pressure ratings varying between 8.0 to 10.0 bar. Engineered with replaceable membranes, the Aquasystem range facilitates servicing on-site, eliminating water contact with the steel expansion vessel shell to combat internal corrosion and extend the unit's lifespan.

Features and Benefits:

• Stainless steel bolted flange for enhanced corrosion resistance
• Extra wide membrane opening to minimise noise caused by restricted flow
• Internal membrane design prevents water contact with the steel shell, eliminating internal corrosion
• Comprehensive capacity range from 2 to 5000 litres, suitable for all applications
• All models come equipped with a replaceable membrane for easy servicing without removal
• Pre-charge valve included for convenient air pressure topping up
• Designed exclusively for heating applications

Specifications:

• Capacity: 12 Litres
• Colour: Red
• Pre-Set Pressure: 1 Bar
• Maximum Pressure: Up to 500 Litres - 8.0 Bar / 750 Litres and above - 10.0 Bar
• Minimum Temperature: -10°C
• Maximum Temperature: 99°C
• Height: 295 mm
• Diameter: 280 mm
• Water Connection: 3/4" BSP Male
• Product Code: XVES100040

Materials:

• Shell: Epoxy Coated
• Membrane: EPDM
• Bolted Flange: Galvanised Steel

Standards and Approvals: CE marked in compliance with Directive PED 97/23/CE - TÜV Certified

Upgrade your heating systems with the Reliance Valves Aquasystem Heating Expansion Vessel, combining durability, performance, and ease of maintenance for optimal efficiency.

**Altecnic / Caleffi Relief Valve - Nut Inlet - F0000242** The Altecnic / Caleffi Relief Valve (Nut Inlet - F0000242) is an essential component for both domestic hot water systems and heating applications. Designed to safeguard your hot water cylinder and boiler, this reliable relief valve prevents dangerous pressure build-up within the system. When the pressure exceeds the predetermined set limit, the valve automatically opens, discharging excess pressure to the atmosphere. This action ensures the safety of the boiler, hot water storage cylinder, and protects personnel in the area. **Specification:** - **Connections:** Loose Nut Inlet - **Materials:** Brass - **Set Pressure:** 4.5 Barg - **Product Code:** F0000242 - **Notes:** Compatible with MK2 Caleffi Multibloc Ensure your heating systems operate safely and efficiently with the Altecnic / Caleffi Relief Valve. Perfect for domestic installations, this durable relief valve is engineered for optimal performance and to provide peace of mind.

The Kunkle Bailey 707MD Safety Relief Valve Female x Female features a top-guided design, optimising flow with an unobstructed seat bore and a high lift capability. This valve is certified to BS EN 4126 Part 1 (BS6759 pt 1:2:3) and is designed for use with air, gas, steam, hot water (above 212°F / 100°C), and process liquids, depending on the selected model. We will set and test the valve according to your specifications, and upon request, a pressure test certificate will be provided prior to dispatch, ensuring peace of mind.

Specification

Sizes: 1/2" to 2"
Connections: BSP Female Inlet x BSP Female Outlet
Materials: Bronze body, Chrome Alloy spring
Disc: Stainless Steel
Medium: Air, Vapours, Gases, Liquids, and Steam
Set Pressure: 0.35 to 24 Barg
Temperature: -20 to +224°C
Notes: Also recognised as IMI Bailey Birkett valves, Kunkle Emerson valves, and Safety Systems UK valves.

Optimised for reliability and performance, the Kunkle Bailey 707MD Safety Relief Valve is an essential component for various applications, ensuring safety and compliance in your systems. Ideal for industrial environments, it delivers top-tier performance while adhering to the highest safety standards.