Niezgodka Type 13 Straight Pattern Relief Valve

Introducing the Bailey Birkett G4 Pressure Reducing Valve GN Conversion Kit, specifically designed for models 2042 and 2043. This essential kit ensures optimal performance and reliability for your pressure reducing valve.

When purchased alongside a new valve, our expert team will meticulously fit the components and conduct thorough testing before dispatch, guaranteeing that your valve operates flawlessly from the moment you receive it.

Kit Contents:

• 1 x Set of joints
• 1 x Main valve
• 1 x Pilot valve stem
• 1 x Pilot valve spring
• 1 x Pilot valve cap
• 1 x Pilot valve guide

Enhance your pressure reducing valve's functionality with the Bailey Birkett G4 Conversion Kit today!

The Altecnic / Caleffi 309 Pressure & Temperature Relief Valve - 309400CST is designed to effectively control and limit the temperature and pressure of hot water in domestic storage heaters. This essential safety valve ensures that water temperatures do not exceed 100°C, preventing steam formation. When the temperature or pressure reaches its set limits, the valve releases a sufficient amount of water into the atmosphere, ensuring that both temperature and pressure return to safe operating levels.

**How It Works:**

The valve features a thermostat compound within the temperature sensor that is submerged in the hot water storage heater. As the temperature increases, the compound expands, moving a thrust pin that activates the obturator, thereby opening the valve. This mechanism is set to initiate opening at temperatures exceeding 90°C. Regarding pressure, the obturator, which is countered by a spring, lifts when the pressure reaches its designated limit, fully opening the outlet. The pressure setting is predetermined based on the system's maximum permissible pressure. As the temperature and pressure decrease, the valve automatically re-closes within the specified tolerances.

**Product Specifications:**

• Size: 1/2"
• Connections: Male x Ø 15 mm with compression fitting for copper pipe
• Materials: DZR
• Medium: Water
• Set Pressure: 10 Barg
• Discharge Rating: 10 kW
• Temperature Setting: 90°C
• Probe Length: 102mm
• Product Code: 309400CST

**Notes:** WRAS approved, CE marked

This high-quality pressure and temperature relief valve is an indispensable component for maintaining the safety and efficiency of your domestic hot water system. Ensure optimal performance and compliance with regulations by choosing the Altecnic / Caleffi 309 Pressure & Temperature Relief Valve.

The Fig. 970W and 970WG valves feature a robust ductile iron body with integrated notch plate, anti-blowout stem, and fully bonded epoxy coating for Level 3 C3 corrosion protection. WRAS approved for potable water (-10 to 80°C), they are maintenance-free, suitable for flow regulation and gas applications, and DN250+ valves include a gear operator. Compliant with BS EN 593/558 and approved for Group 1 & 2 gases and liquids (PED 2014/68/EU). Rated PN16, -10 to 80°C (WRAS) or -10 to 100°C (Non-WRAS).