industrial gaskets manufacturer in China

Industrial Gaskets Manufacturer in China

Quick Answer: For buyers looking for an industrial gaskets manufacturer in China, CORASEALS is a China-based supplier for rubber gaskets, flange gaskets, spiral wound gaskets, RTJ gaskets, PTFE gaskets, graphite gaskets, and custom cut gaskets. Buyers can specify material, dimensions, temperature, pressure, and fluid, then receive a quotation with dimensional and material data. Send us the gasket drawing, operating conditions, and required quantity.

CORASEALS sources industrial gaskets from China-based manufacturers and custom workshops. OEM procurement teams, distributors, and maintenance buyers use the supply range for standard gasket types and custom parts. CORASEALS also supplies O-rings, oil seals, hydraulic seals, and mechanical seals, so buyers can combine gasket and sealing requirements in one inquiry.

Industrial gasket types supplied by CORASEALS

The following gasket types are available for flange connections, pump and valve sealing, heat exchangers, sanitary lines, and general industrial equipment.

Rubber gaskets
Flange gaskets
Spiral wound gaskets
RTJ gaskets
Kammprofile gaskets
Graphite gaskets
PTFE gaskets
Non-asbestos gaskets
Sanitary gaskets
Heat exchanger gaskets
Custom cut gaskets

Spiral wound gaskets and RTJ gaskets use metal materials such as stainless steel, duplex steel, and Inconel. The filler and metal grade must be selected for the flange pressure class and fluid.

Gasket materials and typical working limits

Material selection depends on fluid, temperature, pressure, and flange design. The values in the table are general engineering reference ranges. A specific compound may have different limits depending on hardness, filler, and operating conditions.

Material	Typical temperature range	Common use
NBR	-30 °C to 100 °C	Oil, water, hydraulic fluids
FKM	-20 °C to 200 °C	Fuels, oils, acids, high temperature air
EPDM	-40 °C to 130 °C	Hot water, steam, polar solvents; not for mineral oil
Silicone	-60 °C to 200 °C	Food, medical, low mechanical load sealing
PTFE	-200 °C to 260 °C	Chemicals, acids, solvents, food contact
Graphite	Up to 450 °C in steam or nonoxidizing service	Steam flanges, high temperature flanges
Stainless steel, Inconel	Depends on grade	Spiral wound gaskets, RTJ gaskets, jacketed gaskets

EPDM is not suitable for most mineral oil applications. PTFE offers broad chemical resistance but requires higher seating stress than many rubber materials. Graphite gaskets perform well in steam and high temperature flanges but can promote galvanic corrosion on some metal flanges.

How to specify an industrial gasket

For sheet gaskets, provide the inside diameter, outside diameter, and thickness. For standard flange gaskets, provide the flange standard and pressure class. For spiral wound gaskets and RTJ gaskets, provide the flange facing, pressure class, and gasket standard. For custom cut gaskets, send a drawing or sample photo with the required material.

For rubber gaskets, specify Shore A hardness when the flange load or surface finish is limiting. For PTFE gaskets, specify whether expanded PTFE, filled PTFE, or virgin PTFE is acceptable.

Gasket type
Material
ID × OD × thickness
Flange standard and pressure class
Operating temperature
Operating pressure
Fluid or gas
Required quantity

Common industrial gasket applications

Rubber gaskets and non-asbestos gaskets are used on water, oil, and low pressure flanges. PTFE gaskets and PTFE envelope gaskets are used in chemical process lines. Graphite gaskets and spiral wound gaskets are used on steam and high temperature flanges. Sanitary gaskets are used in food, beverage, and pharmaceutical piping. Heat exchanger gaskets are specified by plate model or gasket drawing.

Standards and dimensional systems

Flange gasket dimensions often follow ASME B16.21, ASME B16.20, EN 1514, or DIN flange standards. RTJ gaskets use the ring number and groove dimensions from ASME B16.20 or API 6A. CORASEALS can supply gaskets in metric and inch sizes. Confirming the flange standard before ordering prevents dimensional errors.

Frequently asked questions

Can CORASEALS supply custom cut gaskets?

Yes. Send a drawing or sample photo with the material, dimensions, and required quantity. Custom cut gaskets can be made from rubber, PTFE, graphite, non-asbestos sheet, and other materials.

What is the minimum order quantity for industrial gaskets?

The minimum order quantity depends on the material, size, and tooling. Standard sheet cut gaskets can often be ordered in smaller quantities. Custom molded gaskets may require a die and a minimum batch.

Which gasket material is best for steam?

Graphite gaskets, graphite filled spiral wound gaskets, and EPDM based materials are commonly used for steam service. The correct choice depends on temperature, pressure, and flange design. EPDM is not suitable for mineral oil.

Which gasket material is best for chemicals?

PTFE, expanded PTFE, and filled PTFE gaskets provide broad chemical resistance. Material compatibility must be checked for each fluid, concentration, and temperature combination.

Can CORASEALS supply food grade gaskets?

Yes. Food grade EPDM, silicone, PTFE, and certain rubber compounds can be supplied for sanitary connections and food processing equipment. Buyers should specify the food contact standard or the fluid during inquiry.

Request a gasket quotation

Send us the gasket type, material, ID × OD × thickness, operating temperature, pressure, medium, flange standard, drawing, sample photo, and required quantity. For standard flange gaskets, include the flange standard and pressure class. For heat exchanger gaskets, include the plate model or gasket drawing.