FAHKNS Radiant Heating Manifold 3 Loop Stainless

Description

Product Overview

The FAHKNS 3 Loop Radiant Heating Manifold is engineered for high‑performance underfloor heating applications. Constructed from premium SUS304 stainless steel, the manifold resists corrosion and maintains structural integrity in demanding environments. Each connection utilizes 0.5 inch NPT threads with extended depth for a secure, leak‑proof fit, while EPDM rubber sealing elements provide a robust barrier against moisture. Integrated features include an automatic exhaust and drain valve that continuously removes air and condensate, and a visual flowmeter‑type shut‑off valve that allows precise adjustment of water flow between 0‑5 L/min per circuit. The manifold’s compact dimensions (16.3 × 14.76 × 2.72 in) and 4.81 kg weight make it easy to handle during installation.

Usage

Designed for both new construction and retrofit projects, this manifold excels in residential homes, multi‑unit apartments, and commercial spaces such as offices, hotels, and retail stores. It supports three independent heating loops, allowing zone‑based temperature control for living rooms, bathrooms, and kitchens. The automatic exhaust and drain valve simplifies system priming, reducing installation time and minimizing the risk of air pockets that can impair heating efficiency. Ideal for HVAC contractors, plumbers, and DIY homeowners who demand reliable performance and easy serviceability.

Why Choose Us

FAHKNS combines rigorous material selection with precision engineering. The SUS304 stainless steel body offers superior corrosion resistance compared to standard carbon steel, extending the service life of the heating system. EPDM sealing ensures a tight, long‑lasting connection even under fluctuating temperatures. Each component is individually replaceable, providing cost‑effective maintenance. Our manifolds are tested to meet industrial standards, reflected in a 4.4‑star rating from verified customers and a top‑100 ranking in the Manifold Fittings category on major e‑commerce platforms.

Key Features

• Premium SUS304 stainless steel construction for durability and corrosion resistance
• EPDM rubber sealing elements deliver a reliable, leak‑free connection
• Automatic exhaust and drain valve continuously removes air and moisture
• Visual flowmeter‑type shut‑off valve enables precise flow control per loop
• Extended NPT 0.5″ threads provide a stronger, easier installation

FAQ

What size pipe does the manifold support?

The manifold is designed for standard ½” (0.5 inch) NPT threaded pipe connections, compatible with most residential and commercial underfloor heating systems.

Can the manifold be used with existing heating loops?

Yes, the modular design allows you to integrate the manifold into existing loops or expand a system by adding new zones, thanks to its interchangeable components.

How does the automatic exhaust and drain valve work?

The valve automatically releases trapped air and condensate during system fill and operation, maintaining optimal flow and preventing air lock without manual intervention.

Is the visual flowmeter accurate for balancing loops?

Absolutely. The flowmeter provides real‑time visual feedback, allowing precise adjustment of water flow between 0 and 5 L/min for each loop, ensuring balanced heating across zones.

What maintenance is required?

Periodic inspection of the EPDM seals and cleaning of the flowmeter window are recommended. Individual components can be replaced without removing the entire manifold, simplifying service.