ORING Material: Perfluoroelastomers FFKM 2375

ID 72.69 x CS 2.62mm

This product can be use in this medium below :

Product used in - Propylene Oxide

Operating temperature – 10 – 20 Deg C (cold service)

Operating pressure – 60 Bar

Design pressure – 78 bar

Material Data Sheets

Material Type: Black perfluoroethers rubber compound, hardness Shore A 70-80.

Material Features :

FFKM 2375 has excellent chemical resistance, good mechanical properties and excellent heat resistance, chemical resistance, the most widely used types of media, including various acids, bases, amines, steam, ethylene oxide, and the like. Its products can play a role in long-term reliability of industrial solvents and corrosive chemicals and electronic grade contact occasions.

The temperature for continuous use is +230 ℃ , Maximum temperature: +260 ℃

Applications:

FFKM 2375 used in chemical, petrochemical, semiconductor, pharmaceutical, oil and gas exploration, aerospace and other fields.

Mechanical properties

performance specification unit Original Properties Value

Density g/cm3 ASTM D-792 1.99

Shore A hardness pt ASTM D-2240 74

Tensile at Break MPa ASTM D-412 19.5

100% Modulus MPa ASTM D-412 7.5

Elongation at Break % ASTM D-412 180

Compression Set,70hr@200℃ 214# O-Ring % ASTM D-395 18.5

Note: some curing conditions of 160 degrees * 10Min Sec conditions: 230 degrees * (1 + 4) h

Chemical resistance

Immersion chemicals FFKM2375

Inorganic acid A

Organic acids A

Base A

Alcohol A

Aldehyde A

Amine (room temperature) A

Amine (> 70 degrees) B

Ether A

Ester A

Ketone A

Steam / hot water A

Strong oxidizers B

Alkanes A

Tetrahydrofuran A

Note:

A : is volume change rate <10%

B : is volume change rate <20% ~ 30%

C : is the volume change rate <30% ~

Primary Usage

O-Rings and rubber seals are generally used for:

· Applications that require resistance to OIL

· Applications that are required to work in low temperatures (-0°C)

· High performance Fuel systems that requires strictly no leakage

• Aircrafts
• Marine Ships
• F1 Cars

· General Industrial Use

Tips for installation of an O-ring

O-rings need to be installed properly for a perfect fit and sealing. It is important that you install the O-ring in a prescribed manner to ensure your application continues to function properly. You will also ensure you increase the life of the application.

So how do you install an O-ring?

The process of installing an O-ring into a male gland is an intricate affair that should be carefully undertaken. Glide it along the shaft so as it reaches the gland. At that point, it should easily snap into place. Simple as it might sound, a number of steps will ensure that the O-ring doesn’t get damaged.

If you want to install an O-ring correctly and within a short time, here are steps to follow:

· Covering and lubricating the threading of the shaft

The threading of the shaft has the potential of tearing the rubber seal. Cover the threads using a masking tape and then lubricate them to allow for easy passage of the O-ring. The aim is to have the O-ring slide through without getting torn.

· Don’t force it over sharp corners

That’s a tip that will save you the stress of a torn O-ring. In fact, running the O-ring over jagged or sharp objects could get it torn. You may not be able to notice some of these tears. That’s why you should ensure you prevent them from occurring in the first place.

· Even stretching

You will have to stretch the O-ring over the shaft. Ensure you do it evenly. Pulling from one side is a no-no. If anything, you should stretch the O-ring as little as possible. You will not just get a tighter grip but added security too.

· Don’t roll it down the shaft

Instead of rolling the O-ring down the shaft, slide it. If you spiral wind or roll an O-ring, it cannot be properly installed. It will also not function optimally and can even end up being damaged. If you have a lubricant, apply it on the O-ring and you will keep it rolling.

· Finishing it off

Place the female component in a manner that allows its radius to go around the corner. This should be done when you are finalizing the installation process. Ensure the lead of this component is inside the chamfer. This is how you will be able to guarantee the safety of the O-ring.

For O-rings to perform optimally, they have to be properly installed. It doesn’t just provide secure sealing but also increases the service life of the component together with the application. Don’t compromise on this process.

Installation Guide