Marsh Bellofram is a world class instrumentation manufacturer, with powerful product support, and near flawless distribution. Our mission is to engage the current and future needs of our customers with swift, professional service while providing the highest quality instrumentation products at the most competitive prices.

Bellofram was originally established in the Boston, Massachusetts area in 1953 to manufacture elastomeric rolling diaphragms. John Taplin, the founder and original owner of Bellofram, designed air cylinders, air regulators, gauge protectors (diaphragm seals), and other pneumatic and hydraulic devices using his diaphragms. In the early 1980's Rexnord purchased Bellofram, and then in 1986 sold Bellofram to the Desco Corporation of Columbus, Ohio.

Desco moved Bellofram from its plants in Pelham, New Hampshire and Burlington, Massachusetts to a single facility just south of Newell, West Virginia. Bellofram has two divisions:

· Process Control Division:
Air regulators, electro-pneumatic transducers, air cylinders, diaphragm seals, etc.

· Diaphragm Division:
Elastomeric diaphragms

Marsh Instrument Company was originally established in 1865 in Skokie, Illinois, as the James P. Marsh Company. Marsh was acquired in 1988 by Desco and relocated to Hastings, Nebraska to share operations with Desco's Marshalltown Instruments. Marshalltown had been founded in 1918 in Marshalltown, Iowa.

The two gauge and thermometer product lines were consolidated by November, 1993 into a Marsh/Marshalltown product line. Marsh products are now also primarily manufactured in Newell, West Virginia.

In 1995 Marsh Instruments and Bellofram were merged to form Marsh Bellofram Corporation. With over a 140 years combined experience developing controls, instrumentation, and components for all areas of the process control, industrial automation, agriculture, chemical processing, medical equipment, and automotive industries we have the people and the products to meet your needs.

Marsh Bellofram offers over 40 years' experience in regulator, diaphragm and instrument technology for the controlled flow of process air and gas. Precision, efficiency and reliability are synonymous with our name.
We now offer the Oil & Gas Industry users the same precision in flow control, pressure control, and reliability from years of experience.