Manifold identification

Alan (California Radiant) Forbes

This looks like an old Wirsbo manifold, but the marking says "TA". Any idea who made these circa 1991?

hot_rod

TA could be Tour Andersson, I think it is part of Vitraulic now

Mainly know for their balance valves, in the US.

PC7060

What type of tubing is that?

chris_nj

I have 1 system with these manifolds I was told it was installed at least 30 years ago. Went to every supply house and was told it's an old wirsbo manifold and good luck getting parts for it like the actuator heads. I was able to find a listing from I think England that sells adapter rings to install modern heads to the old body. In my repair they left the override caps with the manifold so I opened all valves manually and run the system with a radiant mixing pump manifold.

mattmia2

looks like some sort of pex-al-pex

hot_rod

Wirsbo pex that has taken on a grey tint over the years?

I don’t know that Wirsbo or Uponor ever made their own manifolds? Any brass component for that matter.

Some parts had their name on them as an OEM, others had the actual manufactures logo

Alan (California Radiant) Forbes

"TA could be Tour Andersson" As it turns out, Wirsbo tech. support confirms that they used manifolds made by Tour Andersson in the 80's and 90's and that manifold gaskets - part #A2620005 - are still available from Uponor. Other than the gaskets, no other parts are available for these manifolds.

Thanks, hr!

Bill_17

Moehlenhoff is the main manufacturer of thermohydraulic actuators and has adapter rings fitting most brands of manifolds and smaller valves (like radiator valves) made in Europe. The rings, aka valve adapters, typically have an ID on them (alpha numeric). You should be able to contact them for the name of an importer or for product selection assistance. www.moehlenhoff.de

GGross

Yeah you can get parts for the old wirsbo manifolds, including adapter rings right from uponor. the old style brass ones like this will need an adapter ring that will be marked " VA33 " can just google spacer va33 to find on supply house or local wholesalers can source them. the old stadler manifolds on the other hand aren't so easy. Viega completely dropped them and won't support them, if you ever run across a need for parts or telestats you contact a company called hydronic alternatives. As they are the only company that is importing the spacer rings in the US they don't just want to sell the rings by themselves you should also buy the new telestats from them, they are not bad priced and the guy I have talked to there really knew pretty much everything about those manifolds. I really like that guy because he was very much into repairing existing manifolds and not replacing.

Alan (California Radiant) Forbes

The V2620005 was the correct gasket and fixed the leak. I was surprised to find a brass rod inside the manifold. It was connected and didn't budge and I presume that it is there to collect air bubbles and move them to the vent.