CONCOA 327 Series Regulator

The Kunkle Bailey 616D safety relief valve is a spring-operated, high-capacity safety valve specifically designed for low-pressure air applications.

Commonly utilised on blowers or bulk transfer vehicles for road and rail transport, the Kunkle Bailey 616D safety relief valve offers essential overpressure protection for positive displacement air blowers, as well as associated tanks and pressure vessels.

Features:

• Engineered to provide precise relieving and re-seating pressures.
• Protected open discharge facilitates downward flow.
• Non-stick seating surfaces ensure a positive shut-off and prevent sticking.
• A combination of aluminium and gunmetal offers a lightweight yet extremely robust construction.

Specifications:

• Material: Body - Aluminium / Trim - PTFE & Bronze
• Sizes: 1.1/2" to 2" (DN40 to DN50)
• Connections: BSP Female inlet x Open discharge outlet
• Medium: Air
• Pressure Range: 0.2 to 2.5 barg (2.9 to 36.3 psig)
• Temperature Range: -30°C to 200°C

The Kunkle Bailey 616D safety relief valve is the ideal solution for maintaining safety and efficiency in your low-pressure air systems, ensuring reliable performance in various applications.

**Altecnic / Caleffi 309 Pressure & Temperature Relief Valve (309500CST)** The Altecnic / Caleffi 309 Pressure & Temperature Relief Valve (model 309500CST) is expertly designed to monitor and regulate the temperature and pressure within domestic storage heaters. This valve plays a crucial role in preventing the water temperature from exceeding 100°C and averting the dangerous formation of steam. Once the specified limits are reached, the valve automatically discharges an adequate quantity of water, ensuring that both temperature and pressure are safely maintained within the system's operational parameters. **Operational Mechanism:** 1. **Temperature Regulation:** The valve's thermostat compound, housed within the temperature sensor submerged in the hot water storage heater, expands with a rise in temperature. This expansion causes a thrust pin to move, which in turn activates the obturator, resulting in the opening of the valve. The valve is calibrated to open when temperatures exceed 90°C. 2. **Pressure Regulation:** The obturator is countered by a predetermined spring. Upon reaching the designated pressure setting, the obturator elevates, fully opening the outlet. The pressure setting is based on the maximum allowable pressure for the system. As temperature and pressure lower, the valve automatically re-closes within the established tolerances. **Specifications:** - **Size:** 3/4" - **Connections:** Male x Ø 22 mm, featuring a compression fitting for copper piping - **Materials:** DZR (Dezincification Resistant) - **Medium:** Water - **Set Pressure:** 10 Barg - **Discharge Rating:** 25 kW - **Temperature Setting:** 90°C - **Probe Length:** 99 mm - **Product Code:** 309500CST - **Certifications:** WRAS approved, CE marked Ensure the safety and efficiency of your hot water system with the reliable Altecnic / Caleffi 309 Pressure & Temperature Relief Valve. Perfectly suited for domestic use, this valve meets strict industry standards while optimising your heating system's performance.

### Stainless Steel Expansion Vessel for Heating Applications Introducing the Reliance Valves Aquasystem Heating Expansion Vessels, expertly designed for heating applications. Available in capacities ranging from 2 litres to 5000 litres, these vessels can handle maximum pressures between 8.0 and 10.0 bar. Crafted with replaceable membranes, the Aquasystem range allows for efficient in-situ servicing, eliminating water contact with the steel expansion vessel shell to minimise internal corrosion and enhance longevity. #### Features and Benefits - **Corrosion-Resistant Design**: The stainless steel bolted flange ensures maximum protection against corrosion. - **Noise Reduction**: An extra-wide membrane opening effectively mitigates noise caused by restricted flow. - **Internal Membrane Protection**: The vessel's internal membrane prevents water contact with the steel shell, halting internal corrosion and extending lifespan. - **Versatile Capacity Range**: Available in sizes from 2 to 5000 litres, suitable for various applications. - **Serviceability**: All models come with a replaceable membrane, allowing the vessel to be serviced on-site without removal. - **Convenient Pre-charge Valve**: Easily top up air pressure as needed. - **Heating Applications Only**: Specifically designed for use in heating systems. #### Specifications - **Capacity**: 200 Litres - **Colour**: Red - **Pre-Set Pressure (Bar)**: 1.5 - **Maximum Pressure (Bar)**: Up to 500 Litres – 8.0 bar / 750 Litres and above – 10.0 bar - **Minimum Temperature**: -10°C - **Maximum Temperature**: 99°C - **Height**: 1085mm - **Diameter**: 600mm - **Water Connection**: 1" MBSP #### Materials - **Shell**: Epoxy Coated Steel - **Membrane**: EPDM (Ethylene Propylene Diene Monomer) - **Bolted Flange**: Galvanised Steel #### Standards and Approvals - CE marked in accordance with Directive PED 97/23/EC - TÜV Certified Enhance your heating system with our reliable and durable stainless steel expansion vessels from the Reliance Valves Aquasystem range. Ideal for professionals looking for high-quality solutions combined with ease of maintenance.