Inta Tundish

Inta Tundish – Unvented System Discharge Compliance Component

The Inta Tundish is a vital safety and compliance component for sealed and unvented hot water systems, engineered to meet strict water regulations and building standards. Installed on the discharge of expansion valves, temperature relief valves, and temperature & pressure relief valves, a tundish provides a visible air gap that safeguards potable water and prevents backflow ensuring installations conform to Water Regulations G19.1, G19.3 & G19.4 and Building Regulations Part G3.

Constructed for reliability and ease of installation, the Inta Tundish accommodates high operating temperatures up to 110 °C and supports correct discharge routing in line with local and national bylaws. For installers specifying unvented systems in domestic or commercial environments, the Inta Tundish is a robust and compliant solution.

Why You Should Buy This

✔ Regulatory Compliance – Designed to meet Water Regulations G19.1, G19.3 & G19.4 and Building Regulations Part G3 for unvented and sealed hot water systems.
✔ Protects Potable Water – Creates a safe visible air gap at relief valve discharge points to prevent cross‑contamination.
✔ High Temperature Rated – Suitable for systems operating up to 110 °C.
✔ Installer Friendly – Straightforward installation assists with correct discharge routing as required by water bylaws.
✔ Versatile Application – Suitable for use with expansion valves, TPRs (temperature & pressure relief valves), and TRVs on sealed systems.

Key Specifications

• Brand: Inta

• Product Type: Tundish

• Purpose: Discharge air gap component for relief valves

• Compliance: Water Regulations G19.1, G19.3, G19.4; Building Regulations Part G3

• Maximum Operating Temperature: 110 °C

• WRAS Approval: Applies to 15 mm × 22 mm straight tundish only (verify model)

• Application: Unvented and sealed hot water systems, expansion/relief valve discharge

What’s in the Box

• 1 × Inta Tundish (model/size as ordered)

• Installation instructions and regulatory guidance

Note for Installers: Ensure discharge pipework from the tundish is routed in accordance with the local water bylaws and Part G3 requirements — typically ending in a visible safe location, frost‑protected where required, and with correct fall and traps as applicable.