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Marsh Bellofram is the originator of the rolling diaphragm and has been the industry leader since 1950. Our Type 50 pressure regulator is the industry standard for modulating valve control. Marsh Bellofram can supply many of your needs when it comes to repairing control valves. Parts include rolling diaphragms, pressure regulators, I/P transducers, bourdon tubes and pressure gauges.

Bellofram Rolling Diaphragms Marsh Bellofram manufactures fabric reinforced diaphragms for many major actuator OEM’s. Please call your local Marsh Bellofram distributor for your application. Fisher Actuator Models 657/667- 30, 40, 50 & 60 Masoneilan Varimax ATA Models 3, 5, 7 & 9 Masoneilan Camflex II Models 4 1/2" Dia (1"-2" valves), 6" Dia (3"-4" valves)

High Flow BelGAS Regulators The P627 and P630 are spring loaded, direct-operated regulators for both low and high pressure applications in the oil and gas industries and provide direct replacement for Fisher 630 and 627 regulators. These regulators provide durability, from the powder-coated epoxy exterior finish, as well as installation versatility, from the multi-position body and spring case configurations. They are also available in NACE construction for corrosive (sour) gas environments. Marsh Bellofram, the leader in pressure regulator design, now offers Natural Gas and Propane users the...

P039 The P039 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 P039’s are offered with a minimum of five different spring ranges, with an option for a sixth range (500 psig), on our brass and nickel plated versions. P038 The P038 uses a patented balanced pintle design which eliminates unsteady changes in outlet pressure due to inlet pressure fluctuations. The P038 is a spring opposed, diaphragm-operated, non-relieving regulator. The use of a relief valve...

M1 & M2 Filter Regulators Marsh Bellofram’s line of Filter-Regulators are designed with economy and convenience in mind. Standard and Miniature sizes to fit the majority of applications and featuring Bellofram rolling diaphragms. Units are available in 0-30, 0-60, and 0-120 psi output pressure ranges with a maximum supply pressure of 145 psi. Other options include; 5, 25 or 50 micron filters, and manual or semi-automatic drains. Available with 1/8", 1/4", 3/8", and 1/2" NPT pipe sizes. Modular design allows for easy maintenance. T51SSF & T51SSAF Filters The T51SS filter assemblies have built-in...

63mm Severe Service Marsh instruments liquid filled gauges are designed to perform in rugged applications and harsh environmental conditions, especially where pulsation and vibration are a problem. Liquid filled gauges offer a significant cushioning and dampening effect, reducing pointer flutter and internal gauge damage; also lubricating the internals and reducing corrosion. All stainless steel liquid filled gauges feature a ventable top fill plug for pressure relief and ease of venting after installation. Pressure ranges are available through 10,000 psi, with high pressure ranges offering a...