Valve Manufacturers Association of America
(VMA) http://www.vma.org
Phone: 202-331-8105
An association that represents the interests of over 100 U.S. and Canadian
valve and actuator manufacturers.
Manufacturers Standardization Society of the Valve and Fittings Industry
(MSS) http://www.mss-hq.com
Phone: 703-281-6613
A non-profit technical association organized for development and improvement
of industry, national and international codes for valves, valve actuators,
pipe fittings, etc.