The Inta Zero is a unique anti-freeze valve designed and engineered to protect heat pump systems that are operating with water. Designed to discharge when the system water temperature drops to 3°C, preventing ice from forming in the heat pump circuit that could cause breakdown or costly damage to the system.

Product Range

Product	Code
Zero - Anti-freeze valve 28mm	ZERO28
Zero - Anti-freeze valve 35mm	ZERO35
Zero - Anti-freeze valve 1˝ male	ZERO001
Zero - Anti-freeze valve 1 1/4" male	ZERO114
Zero - Anti-freeze valve 1" male x 1" female swivel	ZERO1SW
Zero - Anti-freeze valve 1 1/4" male x 1 1/4" female swivel	ZERO14SW
Insulation for 28mm / 1" Zero Anti-freeze valve	INSULZERO28
Insulation for 35mm / 1 1/4" Zero Anti-freeze valve	INSULZERO35
Anti-freeze valve protector	ZEROGUARD

Installation for Anti Freeze valves

The Zero anti-freeze valves must only be installed in a vertical position, with the outlet facing downwards, to allow the draining water to flow out free from obstructions.

The Zero anti-freeze valves should be properly insulated and sealed to reduce heat loss. Only the vacuum breaker and discharge point should be exposed.

The valves must also not be placed close to heat sources which could interfere with their
function.

When installed outdoors, the Zero antifreeze valves must be protected from rain, snow and direct sunlight.
Inta recommend placing a small cover / hood with 1 open face over the vacuum break - Inta ZEROGUARD optionally available. This should prevent interference or debris whilst still permitting air flow.

Technical Specification

Max Inlet Pressure (static): 10 Bar
Medium: Water
Sensitivity: ± 1°C
Opening Temperature: 3°C
Closing Temperature: 4°C
Working Temperature Range: 0 to 80°C
Ambient Temperature Range: -30 to 60°C
Max Discharge Flow Rate @ 3 Bar: 1.5 L/H
Kv:
ZERO001 (55m³/h)
ZERO114 (70m³/h)
ZERO28 (64m³/h)
ZERO35(70m³/h)
ZERO1SW (33m³/h)
ZERO14SW (52m³/h)

Documents

Antifreeze