Metric O-Ring Size and Standard Sizes
Perfrez® 9011C Perfluoroelastomer (FFKM) Enhanced
is a general use carbon black-filled material for the manufacturing
of o-rings and seals, gaskets and diaphragms and other custom molded
components for use in chemical process plants and equipment. Perfrez®
9011C offers distinct mechanical properties together with resistance
to a wide range of aggressive chemicals typically used in chemical
Perfrez® 9011C is specially formulated and ideally
suited for use under the most demanding conditions found in
production processes in chemical processing facilities and
hydrocarbon refineries, where sealing components are subject to
harsh chemical media, multiple chemical streams and elevated
Its enhanced thermal and chemical resistance
characteristics makes it the product of choice for the most
demanding conditions encountered during processes like steam
cleaning and hot water flushes. Perfrez® 9011C remains highly
resilient throughout thermal cycles with short excursions to higher
temperatures possible during processes, while retaining its sealing
integrity and mechanical properties.
Possible Range of Chemical Resistance
The versatility of Perfrez® 9011C makes it a standard
compound for use in a variety of applications where exposure to
mixed chemical process streams, hot water and steam, or process
excursions to elevated temperatures are expected. Perfrez® 9011C
offers the widest resistance to a range of aggressive chemicals that
include organic and
inorganic acids, alkalis, amines, hot amines, water and steam,
ketones, esters, ethers,
aldehydes, alcohols, hydrocarbons and lubricants.
In addition to its broad chemical resistance, Perfrez®
9011C is designed for optimum performance up to a temperature
threshold of 230¢XC which is compatible with the operating
environments of most chemical plants and hydrocarbon processing
facilities. With a record of safety operating under the most harsh
conditions, Perfrez® 9011C is the standard choice for sealing
applications for the most demanding environments.
Low Volume Swell of Perfrez® 9011C
Volume swell of sealing components like o-rings and
seals is a good indication of chemical compatibility, and its
measure takes into account dimensional changes in all three
dimensions. Volume swell can be thermal or fluid induced. The proper
and efficient operation of equipment can be interrupted by volume
swell, and equipment downtime as a result of seal failure can happen
due to excessive swell.
Low Compression Set with Excellent Thermal Resistance
Perfrez® 9011C offers outstanding heat resistance
allowing a continuous service temperature of up to 230¢XC.
As service temperatures approach the upper design limits of a seal
or an o-ring, the elastomer may undergo chemical changes resulting
in the breaking of the polymer structure or the cross-linking of
adjacent polymer molecules. Performance of the elastomer becomes
less predictable and seals become more rigid, resulting in a
reduction of compression set resistance. Perfrez® 9011C has a
compression set of 16.2% which is superior to competing products in
the same class.
The end use of Perfrez® 9011C is in the form of
o-rings, gaskets, seals and custom-molded components for an
extensive range of applications that are commonly found in the oil
and gas, petrochemicals, automotive and chemical processing
Ge Mao Rubber Industrial Co., Ltd.
No. 15, Kung Yeh East 4th Rd., Lukang, Chang Hua 505, Taiwan, R.O.C.