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Location: 185 Price Parkway, Farmingdale, NY 11735
Hours: 8:00AM - 7:00PM, Mon - Fri.
This product does not comply with the "Safe Drinking Water Act,"
which requires that products used in any system providing water for human
consumption (drinking or cooking) to meet low-lead standards.
Please check the box below to confirm you are aware of that this item is for non-potable water applications only.
This product will NOT be used in the installation or repair of a potable water (human consumption) application.
You must agree to this statement in order to purchase this product.
Do not use this item for any installation or repair of potable water applications.
This product does not comply with the "Safe Drinking Water Act,"
which requires that products meet low-lead standards in order to be used in systems providing water for human consumption (drinking or cooking).
This item is for non-potable (non-human consumption) water applications only.
Brand: Uponor (Wirsbo)
This product was discontinued by the manufacturer.
Voltage, or volts, is a measurement of the difference between two electric fields (in heating terms, the difference between the Earth's electrical field and the electricity running through your wires).
The Motorized Valve Actuator (MVA) (24VAC) features quick-opening motorized valve head that mounts directly onto 1-1/4" Brass and TruFLOW Valved Manifolds. The open/close indicator allows for easy visual inspection. It provides individual flow control on a multi-zoned manifold (manifold serving more than one zone). MVA includes end switch for activation of relay (pump), heat plant or other auxiliary devices. Power-open, spring-closed, do not mount actuators upside down.Note: The MVA is not compatible with the Wirsbo Genius control system.
(based on 21 reviews)
of respondents would recommend this to a friend.
Most Liked Positive Review
Wirsbo MVA have good track record
We have radiant floor heating in 23 homes. Each home uses one Wirsbo MVA for each heating zone. With an average of 4 per home have a total of about 100 heating zones thus...Read complete review
We have radiant floor heating in 23 homes. Each home uses one Wirsbo MVA for each heating zone. With an average of 4 per home have a total of about 100 heating zones thus 100 valves. The system was installed 11 years ago. Over the last 5 years we have replaced 10 Wirsbo MVA's. I expect to replace a few each season. When they die they tend to stay open so the heat runs constantly. We keep 3 in stock at all times. They take about 10 minutes to install. No need to call the plumber. 90% of the valves have been working for over 10 years. I think that's pretty good. We'll replace as necessary. I'd love it if they would work forever but I guess I need to be real about this.
Most Liked Negative Review
Easy to install
I use the product as part of my home heating system. The valves are easy to replace and the price from Pex Supply is the best around. Unfortunately the valves need replacing about every...Read complete review
I use the product as part of my home heating system. The valves are easy to replace and the price from Pex Supply is the best around. Unfortunately the valves need replacing about every two to three years. I don't think they're sealed and internal corrosion makes them malfunction.
Reviewed by 21 customers
Displaying reviews 1-10
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MVA for Radiant Heating
from Whidbey Island, Washington
Comments about Motorized Valve Actuator (MVA), four-wire:
Used for zone control in a radiant heating system with 8 MVA valves. All valves have been replaced once. We are now starting to replace the last Wirsbo's with the blue Uponor's. System is 15 years old this October.The MVA's work good for about 5-7 years. Then the small motors begin to fail or the end switch to the pump fails closed.
Bottom Line Yes, I would recommend this to a friend
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they work like they are supposed to
from hot springs village arkansas
easy to use easy to trouble shoot
Very good product.
from Newaygo, MI
Product works very well.
from Beecher Il
Works great, replacement for a MVA with bad end switch so we will see.
from outback Mn.
simple screw it on, hook up 4 wires. 2 min time floor heat is up and running, floor is worm again, saved a pile of money
Fills the bill.
from Montrose, CO
One of the motorized valve actuators in our heating system failed. I ordered this part as a replacement and it works perfectly.
Just like picture, different color is al
from Orcas Island WA
This was a easy replacement would recommend to any homeowner.
(0 of 1 customers found this review helpful)
Purchase process was great...
from Ocean City, MD
The system works great but more important is the quality follow up processes if your need replacement parts. There are real people who talk to you that help you with technical questions, installation adjustments, who will call you back when there are upgrades. All done quickly, they know that time is important and respect you time. They are great....
PexSupply exceeded ecpectations.
By Fred G. (for great) Sanford
from Loveland, CO
Installation is simple and straight forward. The directions mention that the manifolds should be balanced. It would have been helpful to have instructions on how to balance the manifolds - I'm a handy homeowner, not an experienced radiant floor installer.
Easy to install, the floor is now warm
from Placitas, New Mexico
Purchased a 4000+ sq ft home in NM. Ended up replacing six out of 28 actuators. The radiant heat is now producing like it was new. With me replacing those six actuators I eliminated a $1200 and a $1500 repair estimate from two plumbing companys. I also now understand my homes heating system much better...
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