Product Description
Plate heat exchanger gasket NBR HNBR EPDM HEPDM VITON FKM Silicone/CR/Neoprene
Heat Exchanger Gasket:
Base Polymer: HNBR is a hydrogenated version of nitrile butadiene rubber (NBR). It is created through the hydrogenation process of NBR, which involves the saturation of the butadiene segments within the polymer chain. This hydrogenation improves the material’s resistance to heat, ozone, and chemicals, making it suitable for more rigorous applications than standard NBR.
Properties: HNBR gaskets combine the excellent oil and fuel resistance of NBR with enhanced mechanical properties and thermal stability:
Chemical Resistance: HNBR offers improved resistance to a broader range of chemicals compared to NBR, including acids, bases, and automotive fluids.
Temperature Range: It can typically withstand temperatures ranging from -40°C to +150°C (-40°F to +302°F), depending on the specific formulation.
Mechanical Strength: HNBR exhibits higher tensile strength and better abrasion resistance than standard NBR, making it suitable for sealing applications under high-pressure conditions.
Sealing Performance: The hydrogenation process also enhances compression set resistance, ensuring that HNBR gaskets maintain their sealing integrity over extended periods.
| Brand/Maker | Model |
| GEA |
AN25L1,AN25L2,AN30L1,AN30L2,AN30L3,AN30L4,AN35L1,AN35L2,AN35L3,AN35L4,AN40L1,AN40L2,AN40L3,AN40L4,AN45L1,AN45L2 |
Gasket Material:
| Material | Operating Temperature Range | Usage conditions |
| Nitrile Gaskets | ≤135℃ | Resistant to mineral, animal, vegetable oil and other non-polar media |
| Hydrogenated Nitrile Gaskets | -5℃-150℃ | Resistant to sulfur-containing crude oil, H2S-containing mixed media, high-temperature edible oil and other non-polar media |
| EPDM Gaskets | ≤160℃ | Resistant to hot water, water vapor, edible beverages, and high-temperature sterilization of milk |
| Solvent-based EPR Gaskets | -20℃-150℃ | Polar solvents and many other good solvents, such as lipid solvents. Dilute inorganic acids, alkalis, etc. |
| Universal Viton Gaskets | ≤180℃ | Non-polar mineral oil, lubricating oil and other alcohol-containing fuels |
| Special Fluorine Rubber Gaskets | 30℃-130℃ | Inorganic oxygen-containing acids such as high-concentration acids and bases |
Installation method
Plate heat exchanger sealing gaskets can be divided into 3 forms according to the installation method on the heat exchange plates:
1. Direct sticking type: After applying sealant on the sealing gasket, it is directly glued into the installation groove of the heat exchange plate.
2. Plastic nail inlaid type: The heat exchange plate is designed with assembly holes, and rubber nails are designed on the side of the sealing gasket. After the sealing gasket is placed in the installation slot, the rubber nails are embedded in the assembly holes.
3. Snap-on type: There are buckles on the side of the sealing gasket, and the buckles are used to buckle the sealing gasket onto the heat exchange plate.
The sealing gasket uses different types of rubber according to different media and operating temperatures.
| Main Body Gasket | Operating Temperature (℃) | Suitable Fluid |
| NBR | -15 ~ +135 | Water, Sea water, Mineral Salt, Brine |
| EPDM | -25 ~ +180 | Hot water, Vapour, Acid, Base |
| F26 | -25 ~ +230 | Acid, Base, Fluid |
| FTP | 0 ~ +160 | Concentrated acid, Base, High temperature oil, Vapour |
| FKM | -25~200 | Steam acid,98% SO2,Cl water. |
The steps for replacing the gasket in a heating exchanger are as follows:
Q&A
Q1: Does the gaskets product come with a warranty?
A1: Gasket are consumable accessories, and the replacement cycle is generally determined according to the specific conditions of use by the customer. It is related to the use environment, medium, temperature, etc. Usually we recommend purchasing more for replacement and backup purposes.
Q2: Is there a discount available for wholesale or bulk purchases?
Answer: Yes, we offer discounts for wholesale and bulk purchases. If you are interested in purchasing a large quantity of items or engaging in wholesale business, please contact our wholesale department or customer service team for information regarding wholesale discounts and minimum purchase quantities.
