The Inta Zero Anti-freeze Valve - 1" BSP PM x 1" BSP F Swivel is designed to protect monobloc air source heat pump primary water circuits from freezing.

Constructed with a durable brass body, this valve is equipped to maintain system functionality during cold conditions. It features a vacuum breaker and a wax element that activates based on water flow, ensuring efficient freeze prevention.

This valve includes a surface treatment to reduce friction, enhancing long-term performance.

A protective ring helps prevent dirt from settling into the cartridge, maintaining system cleanliness.

The double safety o-rings ensure reliable sealing, minimising the risk of leaks. A chamfered edge design helps prevent freezing around the valve, adding extra protection in low temperatures.

The valve operates by opening at 3°C and closing at 4°C, providing effective anti-freeze control for outdoor systems.

For optimal performance, install the valve in a vertical position with the outlet facing downwards, and ensure the system remains pressurised even when draining.

The Inta Zero Anti-freeze Valve combines robust freeze protection with easy maintenance, making it ideal for maintaining water flow in air source heat pump systems during colder weather.

PLEASE NOTE: The valve must be protected from rain, snow and direct sunlight.

Alternative Options available.

Benefits

• Vacuum breaker for enhanced freeze protection
• Wax element for precise temperature response
• Surface treatment to minimise friction
• Protective ring for dirt prevention
• Double safety o-rings for secure sealing
• Chamfered edge design to prevent freezing
• Operates between 3°C to 4°C for consistent protection