Wacker Neuson 1000304075 Non Return Valve

The Wacker Neuson Non Return Valve is a genuine OEM component designed for the TH627 hydronic surface heater. As a factory-sourced part, it meets the original design specifications required to maintain proper fluid flow control within the heating system. Verify your machine's parts list reference (418-02) before ordering to confirm this is the correct valve for your unit.

Key Features

• Genuine OEM Construction — Manufactured to Wacker Neuson's original specifications, ensuring the valve seats, seals, and opens at the correct pressure thresholds for this heating system.
• Direct Drop-In Replacement — Engineered to match the original valve's port size, thread pattern, and body dimensions for a straightforward swap into the existing fluid circuit.
• Confirmed Fitment for the TH627 — Referenced directly against parts list 418-02 for the TH627 hydronic surface heater, taking the guesswork out of parts sourcing.
• Maintains Unidirectional Flow Control — A correctly functioning non return valve prevents backflow through the heating circuit, keeping fluid moving in the intended direction under all operating conditions.
• Protects System Components from Backflow Damage — A failed or stuck valve can allow reverse flow that stresses pumps, lines, and heat exchangers — replacing it promptly safeguards the broader system.

A non return valve — also called a check valve — allows fluid to flow in one direction only and automatically closes to block reverse flow when pressure drops or reverses. In a hydronic surface heater like the TH627, this valve plays a key role in keeping heated fluid circulating correctly through the system's plumbing circuit. When the valve fails or its seal degrades, backflow can disrupt heating performance, place unnecessary strain on the circulation pump, and potentially cause damage to other components in the loop.

For fitment questions or help confirming compatibility with your specific TH627 unit, contact our parts team with your machine serial number and parts list reference.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

Why Buy From DHS Equipment

Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.