Flowstar CT5-1 Relief Valve

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.

**PREL100001 High Capacity Sealed Heating System Pressure Relief Valve** The PREL100001 High Capacity Sealed Heating System Pressure Relief Valve is engineered to safely discharge water from the system at a specified pressure, effectively mitigating risks associated with over-pressurisation—particularly beneficial for larger capacity systems. The Reliance Valves 100 Series Pressure Relief Valves, crafted from hot pressed brass, are primarily designed to safeguard closed-circuit wet heating systems from excessive pressure build-up. **Product Features:** - **High Flow Design:** Specifically tailored for larger capacity systems, ensuring effective water discharge. - **Optimised Outlet Size:** The outlet is intentionally larger than the inlet to facilitate elevated discharge flow rates. - **Overpressure Protection:** Provides essential protection against over-pressurisation in wet heating systems, ensuring system longevity and safety. - **Enhanced Scale Resistance:** The diaphragm design improves resistance to scale, enhancing the valve's performance and durability. - **Cartridge Design:** Simplifies maintenance by allowing easy servicing and replacement without needing to reset the response pressure. - **Versatile Pressure Range:** Adjustable pressure settings from 2.5 to 5.0 bar accommodate various system requirements, with the specific response pressure clearly indicated on the twist cap. - **Increased Discharge Capacity:** The high lift design significantly boosts discharge capability, making it ideal for demanding applications. - **Heating Applications Only:** Specifically designed for heating systems, ensuring optimal performance. **Specifications:** - **Size:** 1/2" x 3/4" - **Connections:** BSP Female Inlet x BSP Female Outlet - **Materials:** Hot pressed DZR Brass - **Medium:** Water - **Set Pressure:** 3 Barg - **Temperature Rating:** Up to +140°C - **Product Code:** PREL100001 - **Certification:** WRAS approved Upgrade your heating system's safety and efficiency with the PREL100001 High Capacity Sealed Heating System Pressure Relief Valve—your trusted solution for reliable pressure management.

Introducing the NABIC 500ST High Lift Safety Valve, meticulously engineered for applications requiring the benefits of stainless steel in the service fluid, while not necessitating a complete stainless steel valve due to the working environment. NABIC Valves proudly offer an industry-leading 5-Year Guarantee, ensuring reliability and quality.

Product Specifications

Sizes Available: Tri-Clamp x 3/4" (DN15), Tri-Clamp x 1" (DN20), Tri-Clamp x 1.1/4" (DN25), Tri-Clamp x 1.1/2" (DN32), Tri-Clamp x 2" (DN40), Tri-Clamp x 2.1/2" (DN50), Tri-Clamp x 3" (DN65)

Connections: Tri-Clamp Inlet x Female BSPP Outlet

Materials: Gunmetal Body, Stainless Steel wetted parts, Stainless Steel with PTFE disk

Set Pressure: 1.0 to 12.5 Barg (DN15 to DN25), 0.4 to 12.5 Barg (DN32 to DN65)

Temperature Range: -20°C to 195°C Max

Important Note: The DN value embossed on the valve body signifies the NABIC 500 body size used in the manufacture of this valve and does not correspond to the inlet or outlet size. For instance, a valve with 1" connections (DN25) employs a DN20 NABIC 500 valve body, which is why it will have DN20 marked on the side of the valve.

The NABIC 500ST High Lift Safety Valve is the ideal solution for professionals seeking a reliable and durable valve that meets their specific needs. Its robust design and high-quality materials ensure optimal performance, making it an essential addition to your industrial equipment. Upgrade your safety systems with NABIC valves today!