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Stainless Steel Manifold Accessories

Let MasterHEAT provide the accessories you need for your installation:

Circulation cap
Circulation Cap
For unused circuits in Stainless Steel manifolds. Circuit Isolation Caps are used to “seal off” unused circuits on the manifolds. They can be used to convert an M-8 manifold into an M-7 manifold. Nickel-plated brass for corrosion resistance. Sold individually.
Circulation Isolation mini valve
Circuit Isolation Mini Ball Valve
The Circuit Isolation Mini-ball Valve is used to either positively shut-off a circuit, or to adjust the flow of a circuit on 1” and 1-1/4” manifolds. Features a large handle for easy adjustment and control. Nickel-plated brass for corrosion resistance. May be used on Stainless Steel or Custom Tubular T20 Manifolds. Do not use with CazzBrass Manifolds. Sold individually.
manifold kit
Manifold Kit
Manifold kits come complete with one Vent-and-Purge Assembly, one Manifold End Cap, and a pair of Trunk Isolation Valves, BSP x NPT Manifold Adapters, or BSP x Sweat Manifold Adapters. Order your Onix, Crimp, or Compression fitings separately.
Manifold Boxes
Manifold Boxes
For wall or ceiling-mounted manifold systems.
Manifold Boxes protect manifolds with a locking door. Made of powder-coated carbon steel. All types of 1” – 11⁄2” Watts Radiant manifolds an be mounted in these boxes. Dimensions are width x height x depth. Depth can be expanded to 6”.
Manifold End Caps
Manifold End Caps
To cap flow at end of manifold trunk.
These Manifold End Caps are used to cap off the end of a Stainless Steel Manifold when a vent-and-purge assembly is not used. Nickel-plated brass.
SS-T20 Circuit Sweat Adapter
SS-T20 Circuit Sweat Adapter
For sweating ½” copper or other ½” copper fitting (M Swt) adapters
Stainless Steel Add-a-Zone
Stainless Steel Add-a-Zone
Order Transitional Adapters or Isolation Ball Valves separately (see below).
Add-a-Zones make it easy to add additional capacity to a manifold already installed. Just thread them onto the end of a manifold, or use them as a one-branch manifold (M-1). If using as an M-1, order separately an Add-a-Zone Plug and Transitional Fittings of your choice, as shown below. Sold individually.
Stainless Steel Manifold Couplings
Stainless Steel Manifold Couplings
For Connecting one manifold to another.
These Manifold Couplings are used to connect two manifold pairs. For example, an M-4 can be connected to an M-3 using the coupler to make an M-7. Nickel-plated brass for corrosion resistance. Sold individually.
Transitional BSP x BSP Manifold Elbows
Transitional BSP x BSP Manifold Elbows
Easily install supply lines at 90° to manifold.
Use Manifold Elbows to connect directly to the manifold, then connect an ISO Ball Valve or other transitional to the male BSP side of the Elbow. Adapter or a Trunk Isolation Ball Valve is used to transition to NPT threads.
Transitional BSP x Crimp Fitting Adapter
Transitional BSP x Crimp Fitting Adapter
For connecting PEX to Stainless Steel manifolds.
Transitional BSP x Onix Fitting Adapters
Transitional BSP x Onix Fitting Adapters
For connecting Onix to Stainless Steel manifolds.
Transitional BSP x RadPEX-AL Fitting Adapter
Transitional BSP x RadPEX-AL Fitting Adapter
For connecting RadiantPEX-AL to Stainless Steel manifolds.
Transitional Swivel BP x Sweat Manifold Adapters
Transitional Swivel BP x Sweat Manifold Adapters
For connecting Stainless Steel Manifolds to standard pipe.
BSP x Sweat Manifold Adapters connect Stainless Steel Manifolds to standard brass or copper pipe. This fitting features female BSP threads on the manifold side and a sweat fitting on the pipe side. Nickel-plated brass for corrosion resistance. These are not needed if you are using the Transitional Trunk Valves. Sold individually.
Transitional Tunk Isolation Ball Valves with Temperature Gauge
Transitional Tunk Isolation Ball Valves with Temperature Gauge
Provides manifold isolation and transition to NPT threads.
These manifold ball valves include temperature gauges to measure supply and return temperatures for troubleshooting or system balancing. They also provide transition from MBSP manifold threads to FNPT threads.
Valve Actuator
Valve Actuator
For automated circuit control.
This new Valve Actuator is an optional feature for mounting directly to the balancing manifold. The Valve Actuator provides on/off flow control to individual radiant circuits. This new style incorporates an indicator window that allows you to visually determine whether the valve is fully open or closed. Flow can be balanced prior to installing by turning the adjustment valve under the blue cap. Actuator is 24 VAC with four wires to connect to the thermostat and circulating pump.
Vent-and-Purge Assemblies
Vent-and-Purge Assemblies
For purging air and water from the zones.
The Vent-and-Purge Assembly allows purging of the zone at the manifold location. The Vent-and-Purge Assembly consists of a 1” BSP sleeve nut for attaching to the end of the manifold, and a 3/8” manual air vent valve. Also includes a 1/2” hose fitting with a built-in ball valve to allow zone draining and filling. Nickel-plated brass.

*See our MasterHEAT Pricing page for itemization & ordering information

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