Seals
Industrial seals are used to prevent air and fluid leaks, maintain pressure and deflect contamination between two components by creating a tight enclosure. The type of seal used depends on the surface of the compon...
Categories in Seals - High-Quality Solutions for Integrity and Efficiency (4)
Diaphragm Seals
Diaphragm seals are devices that seal pressure transmitters to prevent process fluid from coming into contact with the inner workings of the transmitter. Our diaphragm seals are made from high-quality rubber resistant to wear and tear. They are available in various sizes to fit most pressure transmitters. Centro supplies threaded, flanged, sanitary and in-line diaphragm seals, and can help you choose the right seal and fill fluid for your gauge or transmitter. In addition, we offer a wide range of accessories for diaphragm seals, including replacement diaphragms, o-rings, and mounting brackets. Whether you need a single diaphragm seal or a complete Diaphragm Seal kit, we have the products to keep your pressure transmitter working correctly.
Related categories: Seals | Seal Accessories | Isolation Rings | O-Rings
Seal Accessories
We carry a complete selection of seal accessories for all your needs. Industrial seals are designed to create a tight, leak-proof seal between two surfaces. Industrial seals are designed to create a tight, leak-proof seal between two surfaces. Hydraulic cylinder seals are designed to prevent leaks in hydraulic cylinders, which are used to power a variety of machinery and equipment. Piston seals are designed to prevent leaks in pistons, which are used to pump fluids through a system. O-ring seals are designed to create a tight, leak-proof seal between two surfaces. Rod seals are designed to prevent leaks in rods, which are used to connect hydraulic cylinders to pumps. We have hydraulic cylinder seals, piston seals, rod seals, and O-ring seals in various sizes and materials. We also have a wide selection of sealant compounds and Seal Kits. Whether you need a new Seal Kit for your excavator or a replacement O-Ring Seal for your loader, we have the right product for the job. We only carry the highest quality products from the leading manufacturers in the industry, so you can be sure you're getting the best possible value for your money. Please browse our website today to see our complete selection of seal accessories.
Related categories: Seals | Isolation Rings | O-Rings | Diaphragm Seals
Isolation Rings
Isolation rings, also known as isolation mounts or isolation pads, are essential components used to prevent the transfer of vibrations and shocks between interconnected machinery or equipment. These rings are typically made of resilient materials like rubber, neoprene, or silicone, and are designed to absorb and dampen vibrations generated by rotating or moving equipment. By creating a barrier between the equipment and its surroundings, isolation rings effectively reduce noise, protect sensitive machinery from damage, and improve overall system performance. They find widespread applications in various industries, including manufacturing, automotive, aerospace, and electronics, where precision and stability are crucial. Isolation rings play a critical role in maintaining smooth and efficient operations while ensuring the longevity of equipment and machinery.
Related categories: Seals | O-Rings | Seal Accessories | Diaphragm Seals
O-Rings
We are your premier destination for top-tier industrial solutions, and our O-rings collection is a testament to our commitment to quality and performance. Explore a comprehensive array of meticulously engineered O-rings, crafted from durable materials and precision-molded for reliability in various applications. Whether you require standard sizes or bespoke configurations, we provide a diverse range of O-rings to meet your specific needs. Our website offers comprehensive insights into specifications, technical details, and practical applications, empowering you with the knowledge necessary to make informed decisions for your industrial sealing requirements. Count on us for excellence in O-Ring solutions, delivering unparalleled reliability and sealing precision for your operations.
Related categories: Seals | Isolation Rings | Seal Accessories | Diaphragm Seals
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Features a flush mount diaphragm and all welded construction, ideal for food & beverage, pharmaceutical and sanitary marketsCan be used for remote mounting of pressure instrument(s) with capillary, see options & accessories belowWetted parts and all welded housing are constructed of 316 Stainless Steel for greater strength and durabilityAccommodates process connection pipes from 1-1/2" through 3" sizesClamped connection allows ease of installation and removal of seal for maintenance and cleaning
$314.17$433.88
Available for Purchase
Subject to factory lead times
Designed for applications requiring an NPT male threaded process connection and with a flush diaphragmFlush diaphragm construction prevents clogging and process material build-upConstructed with a 316 Stainless Steel housing and diaphragm for strength and durabilityAvailable instrument connection sizes are 1/4” and 1/2" with a process connection size of 1/2" NPT male to 2" NPT male
$250.92$346.53
Should ship between 12 Nov and 16 Nov
Subject to factory lead times
Designed for applications requiring an NPT male threaded process connection and with a flush diaphragmFlush diaphragm construction prevents clogging and process material build-upConstructed with a 316 Stainless Steel housing and diaphragm for strength and durabilityAvailable instrument connection sizes are 1/4” and 1/2" with a process connection size of 1/2" NPT male to 2" NPT male
$314.85$434.83
Should ship between 12 Nov and 16 Nov
Subject to factory lead times
Features a flush mount diaphragm and all welded construction, ideal for food & beverage, pharmaceutical and sanitary marketsCan be used for remote mounting of pressure instrument(s) with capillary, see options & accessories belowWetted parts and all welded housing are constructed of 316 Stainless Steel for greater strength and durabilityAccommodates process connection pipes from 1-1/2" through 3" sizesClamped connection allows ease of installation and removal of seal for maintenance and cleaning
$314.17$433.88
In Stock (58)Ships within 1 business day
Features a flush mount diaphragm and all welded construction, ideal for food & beverage, pharmaceutical and sanitary marketsCan be used for remote mounting of pressure instrument(s) with capillary, see options & accessories belowWetted parts and all welded housing are constructed of 316 Stainless Steel for greater strength and durabilityAccommodates process connection pipes from 1-1/2" through 3" sizesClamped connection allows ease of installation and removal of seal for maintenance and cleaning
$314.17$433.88
In Stock (40)Ships within 1 business day
Designed for applications requiring an NPT male threaded process connection and with a flush diaphragmFlush diaphragm construction prevents clogging and process material build-upConstructed with a 316 Stainless Steel housing and diaphragm for strength and durabilityAvailable instrument connection sizes are 1/4” and 1/2" with a process connection size of 1/2" NPT male to 2" NPT male
$250.92$346.53
Should ship between 12 Nov and 16 Nov
Subject to factory lead times
Designed to isolate the pressure measuring instrument from corrosive or viscous process mediaUtilize an all welded, all metallic housing design to eliminate potential leak pathsFor use with gauges with dial sizes of 2-1/2" and smaller, and pressure ranges no less than 100 psigHousing and diaphragm offered in a variety of materials to suit most applicationsA flushing port is available to clean wetted areas and prevent process media build up
$151.66$209.46
In Stock (7)Ships within 1 business day
Designed for applications requiring an NPT male threaded process connection and with a flush diaphragmFlush diaphragm construction prevents clogging and process material build-upConstructed with a 316 Stainless Steel housing and diaphragm for strength and durabilityAvailable instrument connection sizes are 1/4” and 1/2" with a process connection size of 1/2" NPT male to 2" NPT male
$250.92$346.53
Available for Purchase
Subject to factory lead times
GG Series guards are available in PVC, CPVC, PP and PVDF. All guards have an FPM diaphragm. Gauges are offered in 0 to 30 PSI, 0 to 60 PSI, 0 to 160 PSI, and a stainless steel gauge of 0 to 160 PSI. Gauges and guards can be separate or mounted together.
$174.93$188.90
Should ship between 19 Nov and 23 Nov
Subject to factory lead times
GG Series guards are available in PVC, CPVC, PP and PVDF. All guards have an FPM diaphragm. Gauges are offered in 0 to 30 PSI, 0 to 60 PSI, 0 to 160 PSI, and a stainless steel gauge of 0 to 160 PSI. Gauges and guards can be separate or mounted together.
$146.73$158.45
Should ship between 19 Nov and 23 Nov
Subject to factory lead times
GG Series guards are available in PVC, CPVC, PP and PVDF. All guards have an FPM diaphragm. Gauges are offered in 0 to 30 PSI, 0 to 60 PSI, 0 to 160 PSI, and a stainless steel gauge of 0 to 160 PSI. Gauges and guards can be separate or mounted together.
$226.50$244.60
Should ship between 19 Nov and 23 Nov
Subject to factory lead times
GG Series guards are available in PVC, CPVC, PP and PVDF. All guards have an FPM diaphragm. Gauges are offered in 0 to 30 PSI, 0 to 60 PSI, 0 to 160 PSI, and a stainless steel gauge of 0 to 160 PSI. Gauges and guards can be separate or mounted together.
$174.93$188.90
Should ship between 19 Nov and 23 Nov
Subject to factory lead times
GG Series guards are available in PVC, CPVC, PP and PVDF. All guards have an FPM diaphragm. Gauges are offered in 0 to 30 PSI, 0 to 60 PSI, 0 to 160 PSI, and a stainless steel gauge of 0 to 160 PSI. Gauges and guards can be separate or mounted together.
$206.69$223.20
Should ship between 19 Nov and 23 Nov
Subject to factory lead times
GG Series guards are available in PVC, CPVC, PP and PVDF. All guards have an FPM diaphragm. Gauges are offered in 0 to 30 PSI, 0 to 60 PSI, 0 to 160 PSI, and a stainless steel gauge of 0 to 160 PSI. Gauges and guards can be separate or mounted together.
$146.73$158.45
Should ship between 19 Nov and 23 Nov
Subject to factory lead times
Features a flush mount diaphragm and all welded construction, ideal for food & beverage, pharmaceutical and sanitary marketsCan be used for remote mounting of pressure instrument(s) with capillary, see options & accessories belowWetted parts and all welded housing are constructed of 316 Stainless Steel for greater strength and durabilityAccommodates process connection pipes from 1-1/2" through 3" sizesClamped connection allows ease of installation and removal of seal for maintenance and cleaning
$314.17$433.88
Should ship between 16 Nov and 23 Nov
Subject to factory lead times
Generally, EPDM o-rings are known to possess excellent resistance to ozone, sunlight, and weathering, and has very good flexibility at low temperature, good chemical resistance (many dilute acids and alkalis as well as polar solvents), and good electrical insulation property. EPDM o-rings are useful for a number of industries from automobile assembly to water purification systems.Performs well in Alcohols, Automotive brake fluid, Ketones, Dilute acids and alkalis, Silicone oils and greases, Steam up to 204.4ºC (400ºF), Water, Phosphate ester based hydraulic fluids, Ozone, aging, and weathering.Does not perform well in Aliphatic and aromatic hydrocarbons, Di-ester based lubricants, Halogenated solvents, Petroleum based oils and greases.
$0.07
In Stock (40891)Ships within 1 business day
Nitrile rubber (NBR) o-rings, also known as Buna-N, are one of the most commonly used sealing elastomers due to resistance to petroleum-based fuels and lubricants and its relatively low price. Standard Nitrile o-rings are usually sulfur-cured. Sulfur-cured compounds offer better low-temperature properties but are more prone to hardening with high temperatures. Performs well in Petroleum-based oils and fuels, Aliphatic hydrocarbons, Vegetable oils, Silicone oils and greases, Ethylene glycol, Dilute acids.Does not perform well in Aromatic hydrocarbons, Automotive brake fluid, Chlorinated hydrocarbons, Ketones, Ethers, Esters, Phosphate ester hydraulic fluids, Strong acids, Ozone, weathering, and sunlight.
$0.05
In Stock (101241)Ships within 1 business day
Nitrile rubber (NBR) o-rings, also known as Buna-N, are one of the most commonly used sealing elastomers due to resistance to petroleum-based fuels and lubricants and its relatively low price. Standard Nitrile o-rings are usually sulfur-cured. Sulfur-cured compounds offer better low-temperature properties but are more prone to hardening with high temperatures. Performs well in Petroleum-based oils and fuels, Aliphatic hydrocarbons, Vegetable oils, Silicone oils and greases, Ethylene glycol, Dilute acids.Does not perform well in Aromatic hydrocarbons, Automotive brake fluid, Chlorinated hydrocarbons, Ketones, Ethers, Esters, Phosphate ester hydraulic fluids, Strong acids, Ozone, weathering, and sunlight.
$0.06
In Stock (29569)Ships within 1 business day
Silicone o-rings have excellent heat, ozone and corona resistance and have good dielectric stability and resistance to many oils, chemicals and solvents. Silicone o-rings maintain the best flexible property at low temperatures but have low tensile strength and low wear and tear resistance. Performs well in Engine and transmission oil (mineral oils), Diluted salt solution, Moderate water, Dry heat, Ozone and weather resistance.Does not perform well in Concentrated acids and alkalis, Steam over 120ºC (248ºF), Petroleum oils and fuels, Ketones.
$0.05
In Stock (83634)Ships within 1 business day
FKM is a well-known high-performance rubber that has excellent resistance to high temperature, ozone, weather, oxygen, mineral oil, fuels, hydraulic fluids, aromatics and many organic solvents and chemicals. Outstanding resistance to heat, oxidation, weathering, ozone; Outstanding resistance to a broad variety of fluids, including: aliphatic and aromatic hydrocarbons, halogenated fluids, strong acids; Outstanding resistance to compression set, providing sealing performance and longevity unmatched by any non-fluorinated elastomer.Performs well in Petroleum products, Fuel or blend with methanol or ethanol, Diesel or blend with biodiesel, Mineral oil and grease, Silicone oil and grease, High vacuum, Ozone, weather, and very high temperature air, Strong acid.Does not perform well in Ketones, Low molecular weight organic acids, Superheat steam, Low molecular weight esters and ethers, Phosphate ester based hydraulic fluids.
$0.08
In Stock (4821)Ships within 1 business day
FKM is a well-known high-performance rubber that has excellent resistance to high temperature, ozone, weather, oxygen, mineral oil, fuels, hydraulic fluids, aromatics and many organic solvents and chemicals. Outstanding resistance to heat, oxidation, weathering, ozone; Outstanding resistance to a broad variety of fluids, including: aliphatic and aromatic hydrocarbons, halogenated fluids, strong acids; Outstanding resistance to compression set, providing sealing performance and longevity unmatched by any non-fluorinated elastomer.Performs well in Petroleum products, Fuel or blend with methanol or ethanol, Diesel or blend with biodiesel, Mineral oil and grease, Silicone oil and grease, High vacuum, Ozone, weather, and very high temperature air, Strong acid.Does not perform well in Ketones, Low molecular weight organic acids, Superheat steam, Low molecular weight esters and ethers, Phosphate ester based hydraulic fluids.
$0.09
In Stock (17891)Ships within 1 business day
FKM is a well-known high-performance rubber that has excellent resistance to high temperature, ozone, weather, oxygen, mineral oil, fuels, hydraulic fluids, aromatics and many organic solvents and chemicals. Outstanding resistance to heat, oxidation, weathering, ozone; Outstanding resistance to a broad variety of fluids, including: aliphatic and aromatic hydrocarbons, halogenated fluids, strong acids; Outstanding resistance to compression set, providing sealing performance and longevity unmatched by any non-fluorinated elastomer.Performs well in Petroleum products, Fuel or blend with methanol or ethanol, Diesel or blend with biodiesel, Mineral oil and grease, Silicone oil and grease, High vacuum, Ozone, weather, and very high temperature air, Strong acid.Does not perform well in Ketones, Low molecular weight organic acids, Superheat steam, Low molecular weight esters and ethers, Phosphate ester based hydraulic fluids.
$0.10
In Stock (5454)Ships within 1 business day
Generally, EPDM o-rings are known to possess excellent resistance to ozone, sunlight, and weathering, and has very good flexibility at low temperature, good chemical resistance (many dilute acids and alkalis as well as polar solvents), and good electrical insulation property. EPDM o-rings are useful for a number of industries from automobile assembly to water purification systems.Performs well in Alcohols, Automotive brake fluid, Ketones, Dilute acids and alkalis, Silicone oils and greases, Steam up to 204.4ºC (400ºF), Water, Phosphate ester based hydraulic fluids, Ozone, aging, and weathering.Does not perform well in Aliphatic and aromatic hydrocarbons, Di-ester based lubricants, Halogenated solvents, Petroleum based oils and greases.
$0.07
In Stock (146)Ships within 1 business day
Neoprene is a multi-purposed elastomer which yields a balanced combination of properties. Neoprene o-rings are typically seen in the refrigeration sector, as they demonstrate remarkable resistance to chemicals such as ammonia and a variety of coolants. Neoprene o-rings also perform well in contact with oils and many chemicals and has good resistance to sun, ozone and weather. The material displays outstanding toughness and good resistance to fire.Performs well in Refrigerants, Ammonia, Water, Silicone grease and oils, High aniline point mineral oil.Does not perform well in Aromatic hydrocarbons, Ketones, Esters, Ethers, Strong oxidizing acids, Chlorinated hydrocarbons.
Requires Quote
Should ship between 16 Nov and 23 Nov
Subject to factory lead times
Features a flush mount diaphragm and all welded construction, ideal for food & beverage, pharmaceutical and sanitary marketsCan be used for remote mounting of pressure instrument(s) with capillary, see options & accessories belowWetted parts and all welded housing are constructed of 316 Stainless Steel for greater strength and durabilityAccommodates process connection pipes from 1-1/2" through 3" sizesClamped connection allows ease of installation and removal of seal for maintenance and cleaning
$314.17$433.88
Available for Purchase
Subject to factory lead times
Designed for applications requiring an NPT male threaded process connection and with a flush diaphragmFlush diaphragm construction prevents clogging and process material build-upConstructed with a 316 Stainless Steel housing and diaphragm for strength and durabilityAvailable instrument connection sizes are 1/4” and 1/2" with a process connection size of 1/2" NPT male to 2" NPT male
$250.92$346.53
Should ship between 12 Nov and 16 Nov
Subject to factory lead times
Designed for applications requiring an NPT male threaded process connection and with a flush diaphragmFlush diaphragm construction prevents clogging and process material build-upConstructed with a 316 Stainless Steel housing and diaphragm for strength and durabilityAvailable instrument connection sizes are 1/4” and 1/2" with a process connection size of 1/2" NPT male to 2" NPT male
$314.85$434.83
Should ship between 12 Nov and 16 Nov
Subject to factory lead times
Features a flush mount diaphragm and all welded construction, ideal for food & beverage, pharmaceutical and sanitary marketsCan be used for remote mounting of pressure instrument(s) with capillary, see options & accessories belowWetted parts and all welded housing are constructed of 316 Stainless Steel for greater strength and durabilityAccommodates process connection pipes from 1-1/2" through 3" sizesClamped connection allows ease of installation and removal of seal for maintenance and cleaning
$314.17$433.88
In Stock (58)Ships within 1 business day
Features a flush mount diaphragm and all welded construction, ideal for food & beverage, pharmaceutical and sanitary marketsCan be used for remote mounting of pressure instrument(s) with capillary, see options & accessories belowWetted parts and all welded housing are constructed of 316 Stainless Steel for greater strength and durabilityAccommodates process connection pipes from 1-1/2" through 3" sizesClamped connection allows ease of installation and removal of seal for maintenance and cleaning
$314.17$433.88
In Stock (40)Ships within 1 business day
Designed for applications requiring an NPT male threaded process connection and with a flush diaphragmFlush diaphragm construction prevents clogging and process material build-upConstructed with a 316 Stainless Steel housing and diaphragm for strength and durabilityAvailable instrument connection sizes are 1/4” and 1/2" with a process connection size of 1/2" NPT male to 2" NPT male
$250.92$346.53
Should ship between 12 Nov and 16 Nov
Subject to factory lead times
Designed to isolate the pressure measuring instrument from corrosive or viscous process mediaUtilize an all welded, all metallic housing design to eliminate potential leak pathsFor use with gauges with dial sizes of 2-1/2" and smaller, and pressure ranges no less than 100 psigHousing and diaphragm offered in a variety of materials to suit most applicationsA flushing port is available to clean wetted areas and prevent process media build up
$151.66$209.46
In Stock (7)Ships within 1 business day
Designed for applications requiring an NPT male threaded process connection and with a flush diaphragmFlush diaphragm construction prevents clogging and process material build-upConstructed with a 316 Stainless Steel housing and diaphragm for strength and durabilityAvailable instrument connection sizes are 1/4” and 1/2" with a process connection size of 1/2" NPT male to 2" NPT male
$250.92$346.53
Available for Purchase
Subject to factory lead times
GG Series guards are available in PVC, CPVC, PP and PVDF. All guards have an FPM diaphragm. Gauges are offered in 0 to 30 PSI, 0 to 60 PSI, 0 to 160 PSI, and a stainless steel gauge of 0 to 160 PSI. Gauges and guards can be separate or mounted together.
$174.93$188.90
Should ship between 19 Nov and 23 Nov
Subject to factory lead times
GG Series guards are available in PVC, CPVC, PP and PVDF. All guards have an FPM diaphragm. Gauges are offered in 0 to 30 PSI, 0 to 60 PSI, 0 to 160 PSI, and a stainless steel gauge of 0 to 160 PSI. Gauges and guards can be separate or mounted together.
$146.73$158.45
Should ship between 19 Nov and 23 Nov
Subject to factory lead times
GG Series guards are available in PVC, CPVC, PP and PVDF. All guards have an FPM diaphragm. Gauges are offered in 0 to 30 PSI, 0 to 60 PSI, 0 to 160 PSI, and a stainless steel gauge of 0 to 160 PSI. Gauges and guards can be separate or mounted together.
$226.50$244.60
Should ship between 19 Nov and 23 Nov
Subject to factory lead times
GG Series guards are available in PVC, CPVC, PP and PVDF. All guards have an FPM diaphragm. Gauges are offered in 0 to 30 PSI, 0 to 60 PSI, 0 to 160 PSI, and a stainless steel gauge of 0 to 160 PSI. Gauges and guards can be separate or mounted together.
$174.93$188.90
Should ship between 19 Nov and 23 Nov
Subject to factory lead times
GG Series guards are available in PVC, CPVC, PP and PVDF. All guards have an FPM diaphragm. Gauges are offered in 0 to 30 PSI, 0 to 60 PSI, 0 to 160 PSI, and a stainless steel gauge of 0 to 160 PSI. Gauges and guards can be separate or mounted together.
$206.69$223.20
Should ship between 19 Nov and 23 Nov
Subject to factory lead times
GG Series guards are available in PVC, CPVC, PP and PVDF. All guards have an FPM diaphragm. Gauges are offered in 0 to 30 PSI, 0 to 60 PSI, 0 to 160 PSI, and a stainless steel gauge of 0 to 160 PSI. Gauges and guards can be separate or mounted together.
$146.73$158.45
Should ship between 19 Nov and 23 Nov
Subject to factory lead times
Features a flush mount diaphragm and all welded construction, ideal for food & beverage, pharmaceutical and sanitary marketsCan be used for remote mounting of pressure instrument(s) with capillary, see options & accessories belowWetted parts and all welded housing are constructed of 316 Stainless Steel for greater strength and durabilityAccommodates process connection pipes from 1-1/2" through 3" sizesClamped connection allows ease of installation and removal of seal for maintenance and cleaning
$314.17$433.88
Should ship between 16 Nov and 23 Nov
Subject to factory lead times
Generally, EPDM o-rings are known to possess excellent resistance to ozone, sunlight, and weathering, and has very good flexibility at low temperature, good chemical resistance (many dilute acids and alkalis as well as polar solvents), and good electrical insulation property. EPDM o-rings are useful for a number of industries from automobile assembly to water purification systems.Performs well in Alcohols, Automotive brake fluid, Ketones, Dilute acids and alkalis, Silicone oils and greases, Steam up to 204.4ºC (400ºF), Water, Phosphate ester based hydraulic fluids, Ozone, aging, and weathering.Does not perform well in Aliphatic and aromatic hydrocarbons, Di-ester based lubricants, Halogenated solvents, Petroleum based oils and greases.
$0.07
In Stock (40891)Ships within 1 business day
Nitrile rubber (NBR) o-rings, also known as Buna-N, are one of the most commonly used sealing elastomers due to resistance to petroleum-based fuels and lubricants and its relatively low price. Standard Nitrile o-rings are usually sulfur-cured. Sulfur-cured compounds offer better low-temperature properties but are more prone to hardening with high temperatures. Performs well in Petroleum-based oils and fuels, Aliphatic hydrocarbons, Vegetable oils, Silicone oils and greases, Ethylene glycol, Dilute acids.Does not perform well in Aromatic hydrocarbons, Automotive brake fluid, Chlorinated hydrocarbons, Ketones, Ethers, Esters, Phosphate ester hydraulic fluids, Strong acids, Ozone, weathering, and sunlight.
$0.05
In Stock (101241)Ships within 1 business day
Nitrile rubber (NBR) o-rings, also known as Buna-N, are one of the most commonly used sealing elastomers due to resistance to petroleum-based fuels and lubricants and its relatively low price. Standard Nitrile o-rings are usually sulfur-cured. Sulfur-cured compounds offer better low-temperature properties but are more prone to hardening with high temperatures. Performs well in Petroleum-based oils and fuels, Aliphatic hydrocarbons, Vegetable oils, Silicone oils and greases, Ethylene glycol, Dilute acids.Does not perform well in Aromatic hydrocarbons, Automotive brake fluid, Chlorinated hydrocarbons, Ketones, Ethers, Esters, Phosphate ester hydraulic fluids, Strong acids, Ozone, weathering, and sunlight.
$0.06
In Stock (29569)Ships within 1 business day
Silicone o-rings have excellent heat, ozone and corona resistance and have good dielectric stability and resistance to many oils, chemicals and solvents. Silicone o-rings maintain the best flexible property at low temperatures but have low tensile strength and low wear and tear resistance. Performs well in Engine and transmission oil (mineral oils), Diluted salt solution, Moderate water, Dry heat, Ozone and weather resistance.Does not perform well in Concentrated acids and alkalis, Steam over 120ºC (248ºF), Petroleum oils and fuels, Ketones.
$0.05
In Stock (83634)Ships within 1 business day
FKM is a well-known high-performance rubber that has excellent resistance to high temperature, ozone, weather, oxygen, mineral oil, fuels, hydraulic fluids, aromatics and many organic solvents and chemicals. Outstanding resistance to heat, oxidation, weathering, ozone; Outstanding resistance to a broad variety of fluids, including: aliphatic and aromatic hydrocarbons, halogenated fluids, strong acids; Outstanding resistance to compression set, providing sealing performance and longevity unmatched by any non-fluorinated elastomer.Performs well in Petroleum products, Fuel or blend with methanol or ethanol, Diesel or blend with biodiesel, Mineral oil and grease, Silicone oil and grease, High vacuum, Ozone, weather, and very high temperature air, Strong acid.Does not perform well in Ketones, Low molecular weight organic acids, Superheat steam, Low molecular weight esters and ethers, Phosphate ester based hydraulic fluids.
$0.08
In Stock (4821)Ships within 1 business day
FKM is a well-known high-performance rubber that has excellent resistance to high temperature, ozone, weather, oxygen, mineral oil, fuels, hydraulic fluids, aromatics and many organic solvents and chemicals. Outstanding resistance to heat, oxidation, weathering, ozone; Outstanding resistance to a broad variety of fluids, including: aliphatic and aromatic hydrocarbons, halogenated fluids, strong acids; Outstanding resistance to compression set, providing sealing performance and longevity unmatched by any non-fluorinated elastomer.Performs well in Petroleum products, Fuel or blend with methanol or ethanol, Diesel or blend with biodiesel, Mineral oil and grease, Silicone oil and grease, High vacuum, Ozone, weather, and very high temperature air, Strong acid.Does not perform well in Ketones, Low molecular weight organic acids, Superheat steam, Low molecular weight esters and ethers, Phosphate ester based hydraulic fluids.
$0.09
In Stock (17891)Ships within 1 business day
FKM is a well-known high-performance rubber that has excellent resistance to high temperature, ozone, weather, oxygen, mineral oil, fuels, hydraulic fluids, aromatics and many organic solvents and chemicals. Outstanding resistance to heat, oxidation, weathering, ozone; Outstanding resistance to a broad variety of fluids, including: aliphatic and aromatic hydrocarbons, halogenated fluids, strong acids; Outstanding resistance to compression set, providing sealing performance and longevity unmatched by any non-fluorinated elastomer.Performs well in Petroleum products, Fuel or blend with methanol or ethanol, Diesel or blend with biodiesel, Mineral oil and grease, Silicone oil and grease, High vacuum, Ozone, weather, and very high temperature air, Strong acid.Does not perform well in Ketones, Low molecular weight organic acids, Superheat steam, Low molecular weight esters and ethers, Phosphate ester based hydraulic fluids.
$0.10
In Stock (5454)Ships within 1 business day
Generally, EPDM o-rings are known to possess excellent resistance to ozone, sunlight, and weathering, and has very good flexibility at low temperature, good chemical resistance (many dilute acids and alkalis as well as polar solvents), and good electrical insulation property. EPDM o-rings are useful for a number of industries from automobile assembly to water purification systems.Performs well in Alcohols, Automotive brake fluid, Ketones, Dilute acids and alkalis, Silicone oils and greases, Steam up to 204.4ºC (400ºF), Water, Phosphate ester based hydraulic fluids, Ozone, aging, and weathering.Does not perform well in Aliphatic and aromatic hydrocarbons, Di-ester based lubricants, Halogenated solvents, Petroleum based oils and greases.
$0.07
In Stock (146)Ships within 1 business day
Neoprene is a multi-purposed elastomer which yields a balanced combination of properties. Neoprene o-rings are typically seen in the refrigeration sector, as they demonstrate remarkable resistance to chemicals such as ammonia and a variety of coolants. Neoprene o-rings also perform well in contact with oils and many chemicals and has good resistance to sun, ozone and weather. The material displays outstanding toughness and good resistance to fire.Performs well in Refrigerants, Ammonia, Water, Silicone grease and oils, High aniline point mineral oil.Does not perform well in Aromatic hydrocarbons, Ketones, Esters, Ethers, Strong oxidizing acids, Chlorinated hydrocarbons.
Requires Quote
Should ship between 16 Nov and 23 Nov
Subject to factory lead times
FAQS
- For vibration-heavy environments, diaphragm seals are generally the superior choice. They use a flexible membrane that physically decouples the sensing instrument from the process fluid, absorbing mechanical vibration before it reaches the gauge or transmitter. Isolation rings, while useful for thermal and pressure isolation, don't offer the same mechanical dampening and can transmit vibration directly to the instrument. If your application involves pump vibration, rotating machinery, or high-cycle pulsation, a diaphragm seal with a viscous fill fluid (such as glycerin or silicone oil) provides the best protection and longest instrument life.
- High-pressure hydraulic cylinders demand seals engineered for extreme load and dynamic movement. The top choices are polyurethane (PU) U-cup seals, which offer excellent wear resistance and high extrusion resistance up to 5,000+ psi; PTFE-loaded composite seals, which provide low friction with outstanding pressure ratings ideal for servo hydraulics; and nitrile (NBR) O-rings with backup rings, a cost-effective standard for static and dynamic high-pressure faces. For pressures exceeding 3,000 psi, always pair dynamic seals with anti-extrusion backup rings to prevent seal deformation into the clearance gap.
- The right material depends on the specific corrosive agent. PTFE (Teflon) is the broadest-spectrum choice — chemically inert to nearly all acids, bases, and solvents, making it the go-to for aggressive chemistry. Viton (FKM) handles fuels, oils, and many acids exceptionally well and offers high temperature resistance. EPDM excels against steam, hot water, ketones, and alkalis but fails with oils. For highly oxidizing acids like nitric or concentrated sulfuric acid, PTFE or FFKM (perfluoroelastomers) are the only reliable options. Always cross-reference your specific fluid, concentration, and operating temperature against a chemical compatibility chart before specifying.
- Industrial seals create a controlled interface that blocks fluid or gas passage through three main mechanisms. Compression sealing is where O-rings and gaskets deform under load to fill microscopic surface imperfections. Lip and dynamic sealing uses flexible lips that ride against a shaft or bore, maintaining contact through spring force or fluid pressure. Labyrinth and clearance sealing relies on non-contact designs that use tortuous paths and pressure drops to resist leakage in high-speed rotating equipment. Effective sealing depends on surface finish, material hardness match, correct compression ratio, and fluid compatibility. Even a perfectly designed seal will fail prematurely if installation damage, contamination, or thermal cycling degrade the sealing interface.
- A diaphragm seal (also called a chemical seal or remote seal) isolates the pressure transmitter's sensing element from direct contact with the process fluid. This serves several critical functions: it protects against corrosive, viscous, crystallizing, or high-temperature media that would damage or clog the transmitter's internals; it allows sanitary cleaning of process lines without exposing the instrument; and it enables remote mounting when the process connection and transmitter must be physically separated. The flexible diaphragm transfers process pressure hydraulically through a fill fluid to the transmitter, ensuring accurate measurement without any process fluid entering the instrument. Seal selection — material, fill fluid, and flush or purge configuration — must be matched to the process conditions for reliable, drift-free performance.