Mud Box

**Altecnic / Caleffi 314 Relief Valve - A314437CST** The Altecnic / Caleffi 314 Relief Valve - A314437CST is an essential component designed for use in heating systems, domestic water systems, and hydraulic systems. Manufactured by Caleffi S.p.A., this safety relief valve adheres to the critical safety standards outlined in Directive 97/23/CE from the European Parliament and the Council of the European Union, ensuring compliance for pressurised equipment across member States. The 314 series safety relief valves are vital for pressure control in heating systems, including hot water storage units in both hydraulic and domestic water systems. When the system reaches the predetermined pressure, the valve activates, discharging to prevent potentially dangerous pressure buildups that could threaten the generator and installed components. **Product Specifications:** - **Size:** 1/2" x 15mm - **Connections:** BSP Male Inlet - **Materials:** Brass - **Medium:** Air and Water - **Set Pressure:** 3 Barg - **Discharge Flowrate:** 142.1 kg/hr - **Max Boiler Rating:** 82.5 kW - **Temperature Range:** +5 to +110°C - **Product Code:** A314437CST - **Certifications:** WRAS approved, CE marked For reliable and efficient pressure regulation in your systems, trust the Altecnic / Caleffi 314 Relief Valve - A314437CST. Its robust construction and compliance with industry standards make it an indispensable choice for both domestic and hydraulic applications.

### Product Description Gate valves are primarily utilised for on-off applications, providing reliable control over fluid and gas flow. These valves feature a robust construction, comprising a Body, Bonnet, Gate, Stem (with outside screw and yoke), a rising stem equipped with a non-rising handwheel, and an integral seat, with options available for renewable seats. Additionally, they incorporate an open and closed indicator along with a lockable handwheel for enhanced operational security. ### Features Gate valves are renowned for their ability to offer a positive shutoff with minimal pressure drop, making them highly effective for managing the flow of liquids and gases across various applications. With their sturdy design and straightforward maintenance, these valves are both efficient and user-friendly. Operable either manually or via automated devices such as motors, solenoids, or actuators, the gate valve functions effectively by acting as a barrier when closed, blocking fluid flow completely. When the gate is opened, it swings away from the seat, facilitating unrestricted flow through the valve. ### Materials - **Body/Bonnet:** NAB (ASTM B148 C95800) - **Stem:** NAB (ASTM B150 C63200) / MONEL (ASTM B865 N05500) - **Bonnet Joint:** SS-136 + Graphite - **Handwheel:** ASTM A351 CF8M ### Technical Data #150 - **Design Standard:** MSS SP80 / BS 5154 / BS EN 12288 - **Size:** DN15 to DN100 - **Flanges:** ASME B16.5 #150 - **End To End:** ASME B16.10 #150 - **Testing:** EN 12266-1, API 598 - **Max Pressure:** 19 BAR / **Min Temperature:** -29°C - **Max Pressure:** 7.9 BAR / **Min Temperature:** 260°C - **Material Test Certification:** BS EN 10204-3.1 ### Technical Data #300 - **Design Standard:** MSS SP80 / BS 5154 / BS EN 12288 - **Size:** DN15 to DN80 - **Flanges:** ASME B16.5 #300 - **End To End:** ASME B16.10 #300 - **Testing:** EN 12266-1, API 598 - **Max Pressure:** 49.6 BAR / **Min Temperature:** -29°C - **Max Pressure:** 20.6 BAR / **Min Temperature:** 260°C - **Material Test Certification:** BS EN 10204-3.1 Enhance your industrial operations with our high-performance gate valves, ensuring safe and effective control over your fluid and gas systems.

The PREL104005 High Capacity Potable Water Pressure Relief Valve is designed to effectively discharge water from the system when the cold water pressure exceeds the set limit, safeguarding unvented cylinders from over pressurisation. Ideal for high flow and larger capacity systems, the Reliance Valves 104 Series High Capacity Potable Water Pressure Relief Valve provides robust protection against pressure surges. Pre-set and locked to a specific pressure, this valve will lift from its seat and allow water to escape into the waste when the system pressure surpasses the threshold. The outlet connection is sized larger than the inlet to ensure the valve can manage high-capacity discharges efficiently, making it the first line of defence in unvented systems. Available in a variety of pressure settings ranging from 3.5 to 8 bar, as well as multiple connection sizes, this valve offers flexibility for installation.

**Features and Benefits:**

• High flow design suited for larger capacity systems
• Quick-release single-piece cartridge for easy cleaning or replacement
• Diaphragm design enhances resistance to scale
• Safeguards against over pressurisation effectively
• Multiple connections facilitate flexible installation
• Adjustable relief pressure range from 3.5 to 8.0 bar
• Designed for cold water use only

**Specifications:**

• Size: 1¼" x 1½"
• Connections: BSP Female Inlet x BSP Female Outlet
• Materials: Hot pressed DZR Brass
• Medium: Cold water
• Set Pressure: 6 Barg
• Temperature: +140°C
• Product Code: PREL104005

Protect your unvented water system with the reliability and performance of the PREL104005 High Capacity Potable Water Pressure Relief Valve.