Diaphragm Products Flat Diaphragms

Bellofram’s flat diaphragms are precision-engineered components used to sense and respond to pressure changes in industrial equipment. Commonly found in regulators, pumps, instrumentation, and control systems, these diaphragms serve as the reactive interface between fluctuating pressure and mechanical movement — helping restore systems to their original set points with accuracy and reliability.

Available in a variety of thicknesses and material combinations, our flat rubber diaphragms are manufactured from both elastomer-only and fabric-reinforced constructions. These combinations allow for tailored flexibility, strength, and responsiveness depending on the system’s performance needs. Whether you need high sensitivity for low-pressure applications or added reinforcement for greater durability, Bellofram can design the right flat diaphragm to meet your requirements.

Flash Cut Diaphragms for Rapid Prototyping and Precision Cutting

Our flash cut diaphragms are produced using advanced cutting technologies for maximum precision. Our in-house diaphragm flash cutting process eliminates the need for custom tooling, making it ideal for fast-turnaround prototyping and short-run production. With this method, we can deliver custom diaphragms — up to 60x60 inches in size — within just a few days, significantly reducing lead times and costs.

These flat diaphragms are critical to system performance in industries such as aerospace, fluid control, automotive, HVAC, and medical devices. By accurately sensing changes in pressure and allowing systems to adjust accordingly, they help regulate flow, pressure, and mechanical responses across a wide range of environments.

Material Options for Flat Rubber Diaphragms

Our diaphragms can be produced using a range of elastomers, including EPDM, nitrile, neoprene, and FKM diaphragms for high-temperature or chemically resistant applications. Bellofram’s FKM seals offer superior durability and resistance to aggressive chemicals, oils, and fuels — making them an excellent choice for harsh industrial or aerospace applications.

The flat design offers simplicity, reliability, and ease of integration into a wide variety of mechanical systems. With no convolutions or complex geometry, flat diaphragms allow for straightforward installation, minimal wear points, and consistent actuation over time.

Fast, Flexible Solutions for Flat Diaphragm Applications

Backed by in-house design and fabrication expertise, Bellofram provides fast, flexible solutions for both standard and custom diaphragm needs. Whether you require a rapid prototype or a production-scale run of precision flash cut flat diaphragms, our team is equipped to deliver quality parts on time and within budget.