Marsh Bellofram products

The Marsh Bellofram Type 1000 is an electro-pneumatic transducer that reduces a supply pressure to a regulated output pressure directly proportional to a converted electrical input signal. The Type 1000 accepts a wide range of supply pressures, ranging from a minimum of 3 psig (0.2 BAR) above the maximum output up to 100 psig (6.9 BAR). An integral pneumatic volume booster provides high flow capacity (up to 12 SCFM/339 slpm). Model selections include general purpose, NEMA 4X Type, extended range, high relief, intrinsically safe, and explosion proof.

The Bellofram T39 regulator selection is the largest of its type in the industry. We offer this regulator in three different materials, one of which will ideally suit your application AND your budget. ALL of the T39 regulators are offered with six different spring ranges. Our broad selection of outlet pressure spring ranges allows more precise regulation of downstream pressure, hence, better process control. Piping designs can be simplified by using any one (or all) of the 3 outlet ports that come standard on the regulator. The Bellofram T39 is the ONLY regulator of this type, which has 3 outlet ports. To enhance the versatility of this regulator further, we provide you with a choice of seat materials that allows the designer to custom fit the seat material with the application.

The Type 37 regulator is specifically designed for applications that require large flow capability and accurate pressure control. This regulator offers low droop, high accuracy, and fine adjustment sensitivity. The use of a Bellofram rolling diaphragm provides greater sensitivity and improved accuracy. The Type 37 offers a balanced pintle,which minimizes output pressure changes caused by fluctuations in supply pressure. Careful design and quality materials throughout assure long, trouble-free operation. The rugged die-cast aluminum housings are pressure tested to assure safe operation, and are designed to withstand harsh and abusive environments. This durability is attributed to a chemical conversion coating of all cast components and a vinyl paint finish. With a maximum supply pressure of up to 400 PSIG/27.6 BAR and output ranges up to 125 PSIG/8.6 BAR, the Type 37 can achieve flow rates of well over 110 SCFM. It can be panel or pipe mounted.

The Marsh Bellofram Type 10 Air Pressure Regulator is designed to control output pressure with accuracy of 0.1% and high-repeatability, with very low sensitivity to changes in supply pressure, ambient temperature and flow.

Marsh Bellofram diaphragm Air Cylinders are actuators made from elastomers, engineered metals and fabrics. They require no lubrication and are virtually frictionless and economical. They can be used to provide lifting, clamping, pushing, coining, turning and other linear force or actuation motions in many applications.

Marsh Differential Pressure Gauges measure the difference between two pressures in a system. This comparison allows the user to tell whether or not the equipment is functioning properly. Diaphragm Type DP Gauges allow no migration of process media from high to low port.

Marsh Differential Pressure Gauges measure the difference between two pressures in a system. This comparison allows the user to tell whether or not the equipment is functioning properly. Piston Type DP Gauges allow minor migration of process media from high to low port.

With over 155 years of proven experience, an extensive list of designs and options make the Marsh Instruments line of Process Gauges the intelligent and practical choice in process instrumentation. All case styles feature SAFECASE solid front construction.