Rubber Diaphragm

Product Description

We manufacture a wide range of rubber diaphragms made of high-grade compound materials such as Neoprene, EPDM, Viton, Natural Rubber, and Silicone. It regulates the flow of various elements inside the machine in industrial workplaces, such as gases, chemicals, liquids, and non-hazardous, hazardous fluids. Our diaphragm is durable and has a longer life expectancy than the traditional diaphragm.

We also offer FDA-compliant rubber diaphragms that can be used in pharmaceutical and food sectors with the same reliability as industrial-grade diaphragms we make for other sectors. The dimension and compound materials we will use in making the diaphragm will depend on the type of application. RK Rubber Cebu is equipped with the right people and innovative tools to produce high-quality diaphragms to meet your objectives.

How It is Being Made

A rubber diaphragm is a flexible membrane that seals two compartments or chambers. It is made of natural or synthetic rubber and is used in various applications, such as pumps, valves, and compressors.

  • The first step in making a rubber diaphragm is to create a mold of the desired shape and size.
  • Once the mold is created, it is filled with liquid latex rubber. The latex rubber is then cured or hardened using heat or ultraviolet light.
  • After the latex rubber has cured, it is trimmed to the desired shape and size. 
  • The final step is to coat the rubber diaphragm with a thin layer of silicone oil. This gives the diaphragm flexibility and makes it resistant to tearing.

EPDM – is a copolymer of ethylene and propylene, and it is used in various applications due to its excellent resistance to heat, ozone, and weathering. The main advantage of using an EPDM rubber diaphragm is its ability to provide a durable and reliable seal.

Nitrile Rubber – A diaphragm made from nitrile rubber is perfect for use in environments with petroleum products or other chemicals, as it is resistant to these materials. Nitrile rubber diaphragms can withstand high temperatures and pressures, making them suitable for various industrial applications. 

Butyl Rubber  – is a good choice for many applications because it has excellent impermeability to gases, good resistance to ozone and weathering, and low-temperature flexibility. It also has good electrical insulating properties. Butyl rubber diaphragms can be made with either smooth or textured surfaces. 


 It is a versatile and reliable component in many different types of machinery, including pumps, valves, and compressors. Rubber diaphragms have many advantages over other types of materials:

  • They are durable and resistant to wear and tear.
  • They can be used in a wide range of applications and environments.
  • They are easy to install and maintain.
  • They have excellent sealing capabilities.


  • One is that they can be punctured or torn, which can cause severe leaks.
  • Another is that they can deteriorate over time, especially if exposed to sunlight or other harsh conditions.
  • Finally, they’re not always as strong as different types of diaphragms, so they may not be able to withstand high pressures.

To know more about rubber diaphragms and other customized rubber products. Kindly contact our sales team.

 Application Type

Food Industry, Pharmaceutical, Industrial, Aerospace, Engineering, and Agriculture

Features of Rubber Diaphragm

  1. Made from high-grade lightweight materials
  2. Easy to install
  3. FDA-compliant
  4. Excellent chemical resistant
  5. Versatile and durable
  6. Excellent resistance to high and low temperatures
  7. Outstanding resistance to chemicals, UV, oil, and corrosions.

Actual Product

Dimensions may vary depending on the specifications

For Manufacturing, Servicing, and Supplying of rubber products, we only cover the entire Visayas and Mindanao Regions. For faster transactions, feel free to contact our sales team.
Globe: (+63)-916-444-0421 & Smart: (+63)-961-604-3588

Sales Office Location:
#63 F. Gochan Street Mabolo, Cebu City, Cebu Region 7, Philippines

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