Rostra Vernatherm   Vernatherm

Manufacturing thermal actuators and thermostatic valves for over 70 years

Rostra Vernatherm is a major manufacturer of thermostatic, self-actuating valves, and pressure controls.
We specialize in thermal actuators, pressure relief valves, oil valves, thermostatic valves, solar protection products, and custom controls.
We are ISO 9001:2008 certified.


thermal relief
oil valves
Oil Valves More
Thermally activated valves for fluid control in various applications, this product installs in a valve housing that provides a valve seat. Select any activation temperature range from 30F - 300F
thermal actuators Thermal Actuators More
Thermally activated, hydrocarbon powered control devices used in various control applications.
This device delivers linear motion at any set temperature range from 30F - 300F.
pressure relief valve Pressure Relief Valves More
Adjustable & Non-adjustable styles with relief pressures between 8 psi to 3,500 psi.
Various materials available for various applications
three port valve
Self Contained Valves More
Valves with housings, ready for plumbing hookup. These valves can contain thermal actuators, and pressure relief controls all within one self contained valve.
pressure relief
We are proud to be a member of the nation’s leading association of solar professionals and grassroots advocates.
solar freeze protectionsolar freeze valve
Our new Solar Freeze Protection Valves have been featured in the Solar Industry Magazine 2009
thermal actuators

Solar Hot Water Freeze Protection Products

solar freeze protection   Why Solar Freeze Protection?
Keep your solar collectors and exposed piping from freezing with the Vernatherm solar freeze protection valve.

The Vernatherm valve contains a thermal actuator that opens the valve when the temperature approaches freezing and re-closes it upon warm up. This is a continuous process of modulation; cold water is discharged and replaced by warmer water preventing panel and piping freeze up.

This valve features a patented anti-seize feature which ensures longevity and durability you can depend on, through the years this valve will not seize due to corrosion, and will continue to function.
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Customer Testimonials

Disclaimer:
Do not expose valves to temperatures above 300F (148.8c) as this may damage the valve.

Distributors

North American Distributor
Australian Distributor
South African Distributor
     
thermal actuator
 
Rostra Vernatherm LLC.
106 Enterprise Drive, Bristol Connecticut 06010 - USA
Toll Free: 888-582-6776 P: 860-582-6776 F: 860-582-0298
ISO 9001:2008 Certified

Copyright © 1993-2009 Rostra Vernatherm All Rights Reserved
Vernatherm® is a registered trademark
iso quality seal