Intatec 28mm Zero Heat Pump Anti-Freeze Valve

The Intatec 28mm Zero Anti-Freeze Valve ZERO28) is a unique anti-freeze valve designed to protect heat pump systems operating with water, discharging fluid when temperatures drop to prevent freezing and damage to pipes and components.

Product Description

The Inta Zero is engineered specifically for heat pump installations using water as the medium, activating quickly when the system temperature reaches 3°C to release water and avoid freezing. It closes at 4°C to resume normal operation. With a brass body and high Kv-value, it ensures efficient flow and is ideal for domestic and commercial heat pump systems where glycol is not used.

Key Features

• Anti-freeze protection: Opens at 3°C, closes at 4°C to prevent system freeze-up.
• High flow rate: Kv-value of 64 m³/h for minimal restriction.
• Brass construction: Durable UNI EN 12165 CW617N body for corrosion resistance.
• 28mm connections: Compression fittings for easy integration.
• Sensitivity: +/-1°C for precise operation.
• High pressure rating: Max inlet pressure 10 bar (static).
• Water medium: Designed for systems without glycol.

Technical Specifications

• Model: ZERO28 – Zero Anti-Freeze Valve 28mm.
• Connections: 28mm compression.
• Opening temperature: 3°C.
• Closing temperature: 4°C.
• Sensitivity: ±1°C.
• Max inlet pressure (static): 10 bar.
• Medium: Water.
• Valve body: UNI EN 12165 CW617N brass.
• Kv-value: 64 m³/h.

Dimensions & Weights

• Width: 58 mm.
• Weight: 0.11 kg.

System & Application Notes

• Ideal for heat pump systems using water to prevent freezing in cold conditions.
• Compatible with domestic and commercial installations without glycol.
• Suitable for outdoor pipework and vulnerable sections.
• Installation by qualified plumbers; position in areas prone to freezing.
• Supports system protection with automatic discharge.