PEX Manifolds for Plumbing
About PEX copper manifolds by Sioux ChiefAll Sioux Chief manifolds can be divided into two main categories: PEX Manifolds with Valves and Valveless Manifolds. Valved models have 1/4"-turn shut-off miniature ball valves permanently soldered over the manifold’s branches. Regular models without valves have either crimp or push-to-connect outlets.
Inlet/outlet options include PEX or sweat connections in sizes from 3/4" to 2" sizes.
“Closed” manifolds have a spin closed trunk on one end of the manifold. “Open” manifolds are flow-through and have open outlets on both ends.
Branches are spaced at 2" apart on all PEX models and 3" apart for regular models with sweat outlets.
Frequently Asked Questions:Q: Can I use PEX copper manifolds for radiant floor heating?
A: Radiant heating applications generally require balancing valves or other means of flow/temperature regulation, which copper manifolds don't have, so we do not recommend the use of these manifolds for floor heating applications unless proper system balancing is present. Under normal conditions, these manifolds are intended for PEX plumbing only.
Q: Which tubing types and brands are these manifolds compatible with?
A: Outlets on the Sioux Chief PEX plumbing manifolds we carry are crimp style (per ASTM F1807/F877 standard) and are compatible with all types of tubing (PEX-a,b,c), except PEX-AL-PEX.
Note: Although PEX-a is typically installed using an expansion method, it is still compatible with crimp or clamp connection method and crimp style fittings.
Q: How do I tell the difference between a Left hand and a Right hand manifold?
A: In right-hand manifolds, water will be moving to the right, while in left-hand ones, to the left.
Q: Can I use these manifolds for a Home Run System?
A: Yes, these manifolds are well suited for a PEX home run system and can be installed next to each other by using a bracket support system or standard pipe clamps.