Stainless Steel Manifold Submittal

Sizes*: 1" (25.4 mm)
1-1/2" (38.1 mm)
Watts Radiant's Stainless Steel manifolds are designed to be used with
Watts Radiant tubing and connections.
Installation Parameters
Mount manifold bracket to a secure surface or inside a
manifold enclosure. Manifolds may be mounted in any
orientation. If thermal actuators are used, manifolds cannot be mounted
upside-down, placing the actuators below the
manifold. This orientation may cause the actuators to fail or function
improperly.
Transition fittings and adaptors must be used with the
included gaskets to create a proper seal. Multiple manifold sections may
be connected to each other with the use of a manifold coupling.
Use only tubing fittings and adapters designed for use with Watts
Radiant’s Stainless Steel Manifolds (SS-T20 fittings).
Stainless Steel Manifolds are available in 1" (25.4 mm)
and 1-1/2" (38.1 mm) trunk sizes and come complete
with mounting brackets.
Stainless Steel Manifolds
√
Description Model # Order #
1" Manifolds
(25.4 mm)
M-2 D3803002SS 81001981
M-3 D3803003SS 81001982
M-4 D3803004SS 81001983
M-5 D3803005SS 81003398
M-6 D3803006SS 81001984
M-7 D3803007SS 81003682
M-8 D3803008SS 81001985
M-9 D3803009SS 81003687
M-10 D3803010SS 81001986
M-11 D3803011SS 81003688
M-12 D3803012SS 81001987
1-1/2" Manifolds
(38.1 mm)
M-4 D3807604SS 81005355
M-5 D3807605SS 81005356
M-6 D3807606SS 81005357
M-8 D3807608SS 81005358
M-10 D3807610SS 81005359
M-12 D3807612SS 81005360
Specifications/Features 1"
(25.4 mm)
1-1/2"
(38.1 mm)
Trunk Material ANSI 304 Stainless Steel
Nominal Trunk Size 1" (25.4 mm) 1-1/2" (31.8 mm)
Circuit Spacing 2" (50.8 mm)
Thread/Connection Type BSP (British Standard Pipe)
Max. Trunk Flow Rate 12 gpm (0.7 l/s) 22 gpm (1.4 l/s)
Max. Circuit Flow Rate 2 gpm (0.1 l/s) 4 gpm (0.3 l/s)
Max. Operating Temperature 176°F (80ºC)
Max Operating Pressure 87 psi (6.0 bar)
Circuit Flow Meter Integral
Circuit Isolation Integral
Circuit Balance Valves Integral
Circuit Thermal Actuator Optional
Vent/Purge Assembly Optional
Trunk Isolation Valves
w/Temperature Gauges
Optional
*RadiantPEX
+
and Onix
3/8" (9.5 mm), 1/2" (12.7 mm), 5/8"
(15.9 mm), 3/4" (19.1 mm)
*RadiantPEX-AL Press 1/2" (12.7 mm), 5/8" (15.9 mm)
*RadiantPEX-AL Compression
3/8" (9.5 mm), 1/2" (12.7 mm), 5/8"
(15.9 mm), 3/4" (19.1 mm)
ES-WR-SSManifold
For Residential or Commercial Radiant Heating and Snow Melt Applications
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Do not use ttings designed for use with cast brass or
standard tubular manifolds.
Thermal actuators may be used to provide circuit ow
control. Circuits not used must be capped with a Circuit
Isolation Cap.
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Watts Radiant product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements, please
contact Watts Radiant Technical Service. Watts Radiant reserves the right to change or modify product design, construction, specifications, or materials without
prior notice and without incurring any obligation to make such changes and modifications on Watts Radiant products previously or subsequently sold.
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CAUTION
This Engineering Sheet is not intended to provide full installation
instructions and safety information. In order to avoid property
damage or injury, please refer to the complete installation manual
and product safety information provided with the product.