custom gasket supplier

Custom Gasket Supplier: Material Selection, Dimensions and Quote Requirements

Quick Answer: CORASEALS is a custom gasket supplier that provides custom cut gaskets, rubber gaskets, PTFE gaskets, graphite gaskets, non-asbestos gaskets, and metal flange gaskets. We quote from drawings, samples, or measured dimensions. Send the material, ID × OD × thickness, operating temperature, pressure, fluid, flange standard, and quantity to get a custom gasket quote.

CORASEALS is a custom gasket supplier that supports pipe flanges, pump casings, valve covers, heat exchangers, sanitary connections, gearboxes, and general industrial sealing. The gasket range includes rubber gaskets, flange gaskets, spiral wound gaskets, RTJ gaskets, kammprofile gaskets, graphite gaskets, PTFE gaskets, non-asbestos gaskets, sanitary gaskets, heat exchanger gaskets, and custom cut gaskets. Every custom gasket order starts with the application data and a drawing, sample, or clear dimensional list.

Gasket selection is not only a material decision. A reliable custom gasket supplier needs to know the flange type, bolt load, surface finish, operating temperature, pressure, and chemical exposure. A material that works in cold water may fail in hot hydraulic oil. A gasket that seals a flat flange may not work on a raised face flange with limited bolt load. CORASEALS asks for the full service condition before recommending a gasket material or cross section.

What a Custom Gasket Supplier Should Ask Before Quoting

To prepare a quote, send the following information:

Gasket material or service fluid
ID × OD × thickness or flange standard and nominal size
Bolt circle, number of bolts, and flange pressure rating if the gasket is for a flanged joint
Operating temperature and pressure
Medium or chemical exposure
Drawing, sketch, sample photo, or physical sample
Required quantity

For standard flange gaskets, also provide the flange standard and pressure class. For heat exchanger gaskets, provide the manufacturer plate number or a drawing. For sanitary gaskets, provide the connection type, such as tri-clamp, DIN 11851, SMS, or RJT. Do not send only a part code if the profile is unknown. Different manufacturers may use the same code for different dimensions.

Custom Gasket Material Selection

CORASEALS can help match the gasket material to the fluid, temperature, and flange load. The table below shows common service conditions. Temperature limits depend on the specific grade, hardness, filler, and operating environment. Do not select a gasket material by temperature alone.

Material	Common service	Selection note
NBR	Mineral oil, hydraulic oil, water, air, fuels	Good for general oil resistance. Not the first choice for ozone, weather, strong acids, or steam.
FKM	High-temperature oil, fuels, many chemicals	Good high-temperature and chemical resistance. Confirm steam, amine, and low-temperature limits with the grade.
EPDM	Hot water, steam, polar solvents, weather	Good for water and steam. Not suitable for most mineral oil and petroleum-based fluids.
Silicone	Dry heat, weather, food contact air and water	Good flexibility. Not suitable for most petroleum fuels and oils. Confirm food grade compliance before use.
PTFE	Acids, alkalis, solvents, high-temperature flanges	Broad chemical resistance. Cold flow and creep need to be considered under high bolt load.
Graphite	Steam, high-temperature flanges, aggressive chemicals	Good for high-temperature service. Oxidation limits depend on grade and oxygen exposure.
Non-asbestos	General flange sealing, water, oil, mild chemicals	Check the binder and fiber system against the chemical and temperature.
Metal gaskets	High-pressure and high-temperature pipe flanges	Spiral wound, RTJ, and kammprofile gaskets need proper flange alignment and bolt load.

For example, EPDM gaskets are not suitable for most mineral oil flange joints. NBR gaskets can handle many oil and fuel applications but have limited weather resistance. PTFE gaskets resist aggressive chemicals but may relax under high bolt load. Because of these limits, CORASEALS does not recommend a custom gasket material without knowing the fluid, temperature, and flange load.

Dimensions, Tolerances and Flange Surface Requirements

For a custom cut gasket, the most important dimensions are ID, OD, and thickness. For a flange gasket, also provide the pressure rating, bolt circle, number of bolts, and flange facing type. The gasket must fit the sealing surface without overlapping the bolts or blocking the bore. Thickness should match the flange flatness and available bolt force. A thicker gasket may seal a rough flange but requires more bolt load and may increase creep.

Flange surface finish and flatness affect sealing. A damaged sealing face or uneven bolt torque can cause gasket leakage. If a gasket leaks, the problem is not always the gasket material. CORASEALS can help check whether the material, thickness, bolt load, or flange surface condition is the likely cause.

Custom Gasket Supply for Replacement and OEM Projects

CORASEALS supports replacement gasket orders and OEM gasket programs. If you have a failed gasket, send a photo, dimensions, and the service fluid. If you have an existing drawing, send the drawing and material specification. If you only have a part code, include the equipment model and connection type. Providing the drawing and application data helps avoid wrong cutting dimensions and wrong material selection.

For repeat orders, send the previous quote number or original drawing. Sending the previous quote number or original drawing helps speed up the quotation. For new custom gaskets, CORASEALS can quote from a sample or a measured profile. Low-volume prototype orders and production quantities are both accepted. The final quote depends on the material, thickness, dimensions, cutting method, and order quantity.

How to Get a Custom Gasket Quote from CORASEALS

Send the following details to receive a custom gasket quote:

Material or service fluid
ID × OD × thickness, in mm or inch
Operating temperature and pressure
Flange standard, pressure class, or equipment model
Drawing, sample photo, or scanned sketch
Required quantity

If the gasket is for a heat exchanger, pump casing, or sanitary connection, include the connection type and the manufacturer part number if available. If the gasket is for a pipe flange, include the nominal size, pressure class, and facing type. For custom shapes, send a drawing with all cut-out locations and bolt hole positions.

CTA: Send us the gasket material, ID × OD × thickness, operating temperature, pressure, medium, flange standard, drawing or sample photo, and required quantity.

Custom Gasket Supplier FAQ

What information should I provide for a custom gasket quote?

Provide material, ID × OD × thickness, operating temperature, pressure, fluid, flange standard or equipment model, drawing or sample, and quantity.

Can you cut gaskets from a physical sample?

Yes. Send the sample or a clear photo with dimensions. We can use the sample to confirm the profile, thickness, and bolt hole positions.

Which gasket material is suitable for high-temperature steam flanges?

Graphite, PTFE, or metal-based gaskets may fit, depending on steam pressure and temperature. Spiral wound and kammprofile gaskets are common for high-pressure steam flanges. Send steam pressure and temperature for a specific recommendation.

What is the difference between rubber gaskets and PTFE gaskets?

Rubber gaskets are generally better for low-pressure flanges, uneven surfaces, and oil or water service. PTFE gaskets provide broad chemical resistance but can creep under high flange load. Choose the material after confirming fluid, temperature, and bolt force.

Do you supply custom gaskets for heat exchangers and sanitary equipment?

Yes. We supply custom cut gaskets for plate heat exchangers, shell-and-tube heat exchangers, sanitary clamps, pump casings, and valve covers. Send the plate number, connection type, or drawing to get a quote.

Rubber gasket options and PTFE gasket options are available as standard or custom parts.