What is FEP encapsulated?
FEP encapsulation – FEP (fluorinated ethylene propylene) gives an O-ring its tremendous characteristics relating to its resistance to nearly all liquids, gases and chemicals. The exceptions are liquid alkali metals and some fluorine compounds.
What is a FEP seal?
FEP/PFA Encapsulated Seals An Encapsulated ‘O’-Ring is an ‘O’-Ring bound by a seamless and uniform FEP/PFA encapsulation, which encloses an elastomeric core, completely protecting it from the media.
Is FEP silicone?
FEP Encapsulated Silicone O-Rings Readily available in common USA and metric cross-sections and nearly unlimited diameters. CPD# T1002 is FEP encapsulated Solid Silicone with improved chemical resistance up to +400 o F.
What is an encapsulated seal?
Encapsulated O-rings are specially developed seals which solve a common problem in many industries. Sometimes you need the chemical and temperature resistance of PTFE, but a PTFE O-ring wouldn’t have the flexibility you need for compressive fluid sealing.
Is FEP the same as Teflon?
Fluorinated ethylene propylene (FEP) shares some of the same non-stick qualities as Teflon though its structure is slightly different. FEP is softer and therefore melts at a lower temperature than PTFE. This means it is less commonly used in cooking and baking.
What is Kalrez material?
Chemical Processing. Kalrez® 1050LF is a carbon black-filled product for O-rings, seals, and other parts used in chemical process industries. It has good hot water/steam, and excellent amine resistance.
What is FEP Viton?
A FEP Viton or FEP Silicone O-ring combines the elastic properties of the core with the temperature and chemical resistance of Teflon. Some advantages of FEP encapsulated O-rings (FEP encapsulated O-rings): Exceptional protection against aggressive chemicals and gases. Cost effective alternative to Kalrez seals.
Which is better FEP or PTFE?
The benefits of FEP FEP, or Fluoroethylenepropylene, is the melt-processable version of PTFE. FEP has very similar properties to PTFE, but has a lower maximum operating temperature of +200°C. However, FEP can be more easily processed and can be easily welded and re-moulded into complex profiles.
Is FEP toxic?
Inhalation of FEP dust may cause generalized irritation of the nose, throat and lungs with cough, difficulty breathing or shortness of breath.
Is FEP tubing Teflon?
FEP Teflon Tubing ( Fluorinated Ethylene Propylene ) has excellent physical, chemical, and electrical properties that meet ASTM Standard Specification.
Is Kalrez a PTFE?
In addition, Kalrez® is a thermoset perfluoroelastomer part and offers excellent elastic properties and resistance to mechanical damage, unlike PTFE which is a thermoplastic and appears to lack the necessary resilience to withstand mechanical shock in a process application such as this.
What is the difference between Chemraz and Kalrez?
The effective temperature range for Kalrez is +5ºF to + 600ºF, for Chemraz –20ºF to +450ºF. A white Chemraz compound is available and features less impurities and less electrical conductivity.
Can I use FEP type PTFE for O-ring sealant?
Largest O-Ring inventory network in the world, manufacturer direct pricing with same day shipping available. FEP type PTFE Fluoropolymers (performance plastics) offer excellent chemical and temperature resistance, but lack the resiliency of elastomers (rubber) required to maintain a quality seal.
What is the difference between PTFE and FEP?
FEP type PTFE Fluoropolymers (performance plastics) offer excellent chemical and temperature resistance, but lack the resiliency of elastomers (rubber) required to maintain a quality seal.
What is the difference between PTFE and silicone?
The PTFE shell offers excellent chemical and temperature resistance while the Silicone core provides the resiliency needed to provide effective sealing. Readily available is common USA and metric cross-sections and nearly unlimited diameters. CPD# T1002 is FEP encapsulated Solid Silicone up to +500o F depending on application.
What are encapsulated and spring energized seals?
Encapsulated and spring energized seals combine the best sealing features of plastics, elastomers and steel springs to increase chemical and temperature performance compared to most solid elastomers.