Flange Gasket (Full Face & IBC) EN 1514

Buy Flange Gaskets at a Bargain Price

UTMK offers a full range of sealing materials for pipeline sealing. We stock gaskets made of CNAF (Compressed Non-Asbestos Fiber / Paronite), Rubber (EPDM, NBR), Biconite, and Expanded Graphite, complying with international standards. Our warehouses in Poland, Bulgaria, and Ukraine ensure rapid shipment of products for enterprises of any scale.

Flange Gaskets are replaceable parts used in flange connections of any type and are placed between the flange faces (rings). Their shape directly depends on the shape of the flange connection and must fully replicate its geometry.

The selection of a gasket for a connecting node plays a key role, as the reliability and safety of the entire line depend on it. The main tasks of the gasket are to ensure:

• Joint tightness at the microscopic level — to prevent foreign components (dust, air, moisture) from entering the working medium;
• Protection against leakage of the working medium — this is especially important when transporting combustible, explosive, or toxic chemical substances through the pipeline;
• Protection of connection parts — allows excluding the negative impact of metal parts on each other (friction, surface deformation under the influence of high temperature or chemical substances).

The selection of the material from which the gasket is made depends on the pipeline system on which the flange connection is mounted. The material must withstand all negative factors (high temperature, extreme pressure, aggressive chemical impact) affecting the pipeline while not losing its elastic properties. You can find gaskets made of cardboard, PTFE, rubber, paronite (CNAF), biconite, and other composite materials.

In steel flange connections, the following types of gaskets are most often used:

1. Rubber Gaskets. Rubber is a material obtained from organic or inorganic rubber by vulcanization. This process implies the effect of a certain temperature and pressure on the rubber for a strictly allotted time, resulting in a plastic and durable material. Rubber is divided into soft, medium hardness, and high hardness. The vulcanization method allows supplementing the raw material with various components to improve characteristics. For flange gaskets, the following are often used:
   • Petrol and Oil Resistant Rubber (NBR/MBS) — used at oil production enterprises or plants engaged in the production of gasoline and lubricants. Due to its resistance to chemical substances, it is often used in the automotive and shipbuilding industries. The operating temperature limit for such material is from -30 to +80°C. Suitable for working in indoor air environments, inert gas environments with a pressure of 0.05 to 0.4 MPa, as well as when working with lubricants and combustible materials (system working pressure should not exceed 10 MPa).
   • TMKShch Rubber (Heat-Frost-Acid-Alkali Resistant / EPDM equivalent) — a material with increased resistance to heat, frost, acids, and alkalis. Used for the production of gasket elements for pipelines working with seawater, fresh water without organic compounds and lubricants, nitrogen and inert gases with a pressure of 0.05 to 0.4 MPa, as well as acids and alkalis with a concentration of not more than 20% at a pressure of 0.05 to 10 MPa.
2. Paronite (CNAF). A type of gasket material obtained by mixing rubber with various inorganic fillers, such as lead oxide, asbestos fibers, etc. Such a compound ensures increased resistance of the resulting material to high temperatures and pressure, as well as resistance to chemicals. The most popular and frequently used varieties of paronite are:
   • General Purpose Paronite (PON) — suitable for manufacturing gasket elements for pipeline systems working with fresh superheated water and steam, ammonia, aqueous salt solutions. Used in flange connections and pipeline valves installed in utility systems, heating equipment, water and gas meters. The operating temperature ranges from -50 to +450°C.
   • Oil and Petrol Resistant Paronite (PMB) — can be used as a gasket material in flange connections installed on pipelines working with products such as oil, lubricants, gaseous oxygen, nitrogen, coke gas. Allowed for use in systems with an operating temperature from -40 to +490°C and pressure not higher than 10 MPa.
   • Acid Resistant Paronite (PK) — used at chemical industry enterprises. Intended for use in working nodes of pipelines working with particularly active acids and solvents. Maximum temperature is +250°C at a working pressure of 16 MPa.
3. Biconite. Also a variety of rubber obtained from synthetic rubber. Biconite gaskets are used to seal flange connections and pipeline valves working at temperatures from -50 to +200°C and system working pressure up to 1.6 MPa. Used for water pipelines, heating systems, oil transport systems, lubricants, mineral oils.
4. Expanded Graphite (TRG). Used as seals at petrochemical and gas production enterprises. Graphite has high resistance to temperatures. A distinctive feature of a gasket made of such material is that without oxygen access (i.e., excluding the oxidation process), the gasket can be used in systems with a working temperature of up to 2500°C.
5. Silicone. Is the main material for the production of gaskets used for taps, valves, flanges, and other parts of the pipeline system in the food industry.

To ensure leak-free operations and full ISO compliance, pair our gaskets with the appropriate flange assembly. For standard piping, we supply the Slip-On Flange for Welding and the high-pressure Weld Neck Flange (WN). For system maintenance or closure, utilize a Blind Flange. If your project involves flow control or cathodic protection, consider our specialized Weld Neck Flange for Butterfly Valve and Insulating flange connections (IFS) for a fully integrated solution.

Where to order gaskets in Europe

The UTMK team will be happy to help you choose the necessary flange gasket for your specific tasks. We supply flange gaskets wholesale and retail to any point in Europe. The company's assortment includes paronite, rubber, and biconite gaskets with a nominal diameter (DN) from 15 to 600 mm. You can place an order in any way convenient for you: by leaving a request on the website, calling by phone, or directly at the office. Pleasant discounts await our wholesale buyers.