O RING MECHANICAL SEALS
O-rings are one of the most frequently used products in sealing applications, relatively inexpensive and reliable. O-rings come in many styles and shapes. The material required depends on temperature, pressure, chemical, and other environmental factors. Materials such as EPDM, Nitrile, Buna-N, Viton, FFKM are the most common materials that we supply. Applications range from garden hose couplings to critical aerospace or chemical plant duties.
Types of O Ring Mechanical Seal for Sale
Sealcon is a professional manufacturer and supplier of mechanical seal rings. We supply all standard types of materials in a range of Shore Hardnesses and colours. In addition to standard imperial and metric sizes, Sealcon also supply a wide variety of non-standard sizes. Please feel free to inquire us if you need any O-rings. Materials include; Nitrile, Silicone, EPDM, FKM, Viton, FFKM, and HNBR.
O Ring Mechanical Seals N11
Replacement for:
John crane type 109, AESSEAL M01
Features:
PEFE wedge Seals
Multi-Spring
Hastelloy C276 metal available
Corrosion resistance
O Ring Mechanical Seals N12
Replacement for:
John crane type 109B
Features:
Balance PEFE wedge Seals
Multi-Spring
Hastelloy C272 metal available
High pressure
Corrosion resistance
O Ring Mechanical Seals N13
Replacement for:
John crane type 58U
Features:
Multi-Spring
Hastelloy C272 metal available
FFKM o-ring
O Ring Mechanical Seals N14
Replacement for:
John crane type 58B
Features:
Balance Seals
Multi-Spring
Hastelloy C276 metal available
High pressure
FFKM o-ring
O Ring Mechanical Seals N15
Replacement for:
John crane type 59U
Features:
PEFE wedge Seals
Multi-Spring
Hastelloy C276 metal available
Corrosion resistance
O Ring Mechanical Seals N16
Replacement for:
John crane type 59B
Features:
Balance PEFE wedge Seals
Multi-Spring
Hastelloy C272 metal available
High pressure
Corrosion resistance
O Ring Mechanical Seals N21
Replacement for:
Burgmann type H10
Features:
Multi-Spring
Simple design
Easy installation
O Ring Mechanical Seals N24
Replacement for:
Burgmann type M3N
Features:
Single-Spring
Bulk production
Fast delivery
Different material combination
O Ring Mechanical Seals N25
Replacement for:
Burgmann type M7N
Burgmann type M74
Features:
Wave-Spring
Bulk production
Fast delivery
Different material combination
O Ring Mechanical Seals N29 N210
Replacement for:
Burgmann type H7N
Burgmann type H75
Features:
Balance seals
Wave-Spring
Bulk production
Fast delivery
Different material combination
O Ring Mechanical Seals N41
Replacement for:
Roten type 2
Burgmann BT-RN
Features:
Single-Spring
Bulk production
Fast delivery
Different material combination
O Ring Mechanical Seals N42
Replacement for:
Uniten type 2
Burgmann BT-RN
Features:
Single-Spring
Bulk production
Fast delivery
Different material combination
O Ring Mechanical Seals N43 N44
Replacement for:
Roten type 3
Burgmann BT-FN
Features:
Single-Spring
Bulk production
Fast delivery
Different material combination
O Ring Mechanical Seals N47
Replacement for:
Roten 5
Features:
Single-Spring
Bulk production
Fast delivery
Different material combination
O Ring Mechanical Seals N71
Replacement for:
Chesterton mechanical seal type C891
Chesterton mechanical seal type AES SAI
Features:
Multi-Spring
Square pin design
Easy installation
O Ring Mechanical Seals N91
Replacement for:
Type 1527
Features:
Single-Spring
Bulk production
Fast delivery
Different material combination
O Ring Mechanical Seals N213
Replacement for:
Burgmann type HJ92N
Features:
Wave spring seals
Logo laser making
Fast delivery
Application of O Ring Mechanical Seals
O-ring mechanical seals are mainly used in the fluid static application (For example, water, oil, air, chemicals solvent, chemicals, etc.).
The temperature range is from -60 ℃ up to 220 ℃.
The pressure in the static application should be less than 20MPa, which varies with different materials.
Sometimes O-ring is used in the dynamic application with the pressure less than 5MPa and also used in semiconductor vacuum seal.
Advantages of O Ring Mechanical Seals
Cost-effective
Reliable
Versatile
O Ring Seal Material
O mechanical seal ring seals come in many styles and shapes. The o ring seal material required depends on temperature, pressure, chemical, and other environmental factors. The o ring material selection such as EPDM, Nitrile, Buna-N, Viton, FFKM are the most common materials that we supply. Applications range from garden hose couplings to critical aerospace or chemical plant duties.
Common Elastomer Materials of O Ring Mechanical Seals
Buna-N(NBR)
Buna-nitrile is the most common elastomer used in mechanical seals. Depending on the exact compound, Buna is good for moderate temperatures, from about -35 °F to about 250 °F. Buna’s chemical resistance is narrow, and it is used mostly for water-based applications. Buna is the lowest cost elastomer used in mechanical seals.
Fluoroelastomer (Viton/FKM)
Fluoroelastomers (Viton) offer the best all-around chemical resistance value for mechanical seal applications. Fluoroelastomers can be used at continuous temperatures up to 400 °F. There are some applications — such as steam — and some specific chemicals — such as organic acids and ketones — where EPDM or Kalrez® are specified. While much more expensive than Buna, Viton is still moderately priced.
Ethylene Propylene(EPDM)
Ethylene propylene (EPDM) offers outstanding performance in steam and hot water. There are also specific chemical applications where EPDM is the best choice. EPDM is recommended for use up to 300 °F. EPDM is often priced between Buna and Viton.
Perfluorocarbon (FFKM)
FFKM offers excellent resistance to chemicals and extreme temperatures. Special compounds can operate beyond 300°C. FFKM is resistant to most chemicals including inorganic acids, alkalines, ketones, esters, alcohols, fuels, and hot water. It is ideal for applications in aggressive chemical environments.
Our Standard FFKM compound has outstanding heat resistance with service temperatures of -10°C to 310°C. Sealcon can offer direct equivalents to Kalrez, Simrez, Perlast, Chemraz, grades.
Aflas
Aflas is a specialty, non-conventional fluoroelastomer. A cousin of Viton, it offers higher heat resistance and performs well in high concentrations of acids, oxidants, and alkalis. Aflas is usually somewhat more expensive than Viton.
Kalrez
Kalrez is usually the most expensive elastomer option available. With specialty compounds available for use with nearly any chemical, and the ability to withstand temperatures up to 600 °F, Kalrez is an amazing elastomer. O-rings often cost hundreds of dollars each, so Kalrez is only used where absolutely necessary.
Specialty Elastomers
There are a variety of specialty elastomers on the market, most of which compete with one of the above materials. Sometimes these are specified by a seal or pump OEM, and Infinity Pump can source these materials for you.
Hangzhou Sealcon Fluid Machinery Co., Ltd adopts the latest technology to produce sealing products, seal spare parts and pump and pump spare parts with long service life.
We supply a wide range of products made of different materials, including rubber, stainless steel, PTFE, carbon, ceramic, Sic, TC, etc. Also, our sealing spare parts are easy to interchange and maintain.
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