Nantong Hi-eff Heat Exchange Equipment Co., Ltd. is a leading supplier of heat exchangers and their plates and gasket spare parts. Our main products are plate and frame heat exchangers, welded plate heat exchangers, plate heat exchanger accessories, etc.
Why choose us
Rich experience
Our team consists of more than 30 technical personnel with more than 20 years of industry experience and has helped our products obtain more than 55 patent certificates.
Accept ODM
Our team is good at customized design and production, and supports OEM and ODM orders, including providing various heat exchange tubes, fins, structural parts, and pipes to meet the requirements of different use environments.
Well equipped
The company is equipped with multiple advanced mold processing CNC machine tools, special hydraulic presses, punching machines, integrated blanking machines and other equipment, and can provide customers with high-quality heat exchanger and gasket spare parts, especially GEA, Tranter, APV, AGC and other models.
Quality assurance
We have our own quality inspection center to ensure that the production process complies with ISO standards, and conduct quality inspection of heat exchangers through hydraulic pressure testing equipment, strength testing equipment, etc. to ensure that all products comply with CE and RoHS certifications.
Our company offers the following products
NBR Gasket
The NBR gasket for heat exchangers is a widely used sealing material in various heat exchanger equipment. This sealing gasket has excellent oil resistance, high temperature resistance, weather resistance, and chemical corrosion resistance, thus effectively protecting the heat exchanger equipment and improving its performance and lifespan.
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Property |
Specification |
Value |
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Hardness |
ISO 868 |
85 +/- 5 shore |
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Modulus 100% |
DIN 53 504 |
Greater than or Equal to 1595 psi |
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Tensile strength |
DIN 53 504 |
Greater than or Equal to 2465 psi |
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Elongation at break |
DIN 53 504 |
Greater than or Equal to 150% |
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Tear Strength |
DIN 53 515 |
Greater than or Equal to 102 lbf/inch |
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Specific Gravity |
ISO 1183 |
1.28 g/cm3 |
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Rebound Elasticity |
DIN 53 512 |
Greater than or Equal to 20% |
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Abrasion |
DIN 53 516 |
100 mm3 |
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Compression set |
ISO 815 |
Less than or Equal to 5% |
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70 deg. C / 24h @ 25% deflection |
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Compression Set |
ISO 815 |
Less than or Equal to 6% |
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100 deg. C / 24h @ 25% deflection |
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Min. Service Temperature |
-22 deg. F |
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Max. Service Temperature |
230 deg. F |
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Max. Temperature Water / Steam |
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Max. Temperature Hot Air (short) |
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Acid resistance
One of the most compelling reasons to use nitrile gaskets is their resistance to several different substances— one of which is acids.
Nitrile gaskets and seals offer excellent resistance against alkalis and acids, making them useful in industries and applications where they're often present.
Oil and gasoline resistance
Along with acid, nitrile rubber material is resistant to oil, gasoline, and lubricants, making nbr gaskets highly valuable in automotive and aerospace applications where they act as fuel-resistant seals.
When it comes to nitrile rubber, you'll want to avoid using organic compounds like acetone, ethanol, or acetic acid. Nitrile rubber does not have good resistance against these organic compounds.
Compression resistance
Nitrile gaskets resist compression, meaning they can revert to their original shape after pressure. The compression resistance is ideal for products that are in constant use or intended to be permanent.
In addition to their compression resistance, nbr gaskets have high tensile strength, contributing to their performance in dynamic applications.
Low-temperature functionality
Not all gaskets are made to withstand low temperatures while maintaining their compression resistance, but nitrile gaskets are the exception.
Gaskets without cold resistance can freeze and break, often leading to failures. Luckily, nitrile rubber can withstand temperatures as low as -40°f (-40°c).
Available Nitrile Grades
Commercial Grade Nitrile (Buna-N) gaskets
1
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Mid Grade Nitrile gaskets
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High-Grade Premium Nitrile (Buna-N) gaskets
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FDA White Nitrile (Buna-N) gaskets
4
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Transformer Oil Nitrile (Buna-N) gaskets
5
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Bio-Diesel Nitrile (Buna-N) gaskets
6
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Nitrile (Buna-N) Sponge gaskets
7
Epdm Rubber Seal
1. Model: Customizable
2. Material: EPDM rubber
3. Purpose: Heat exchanger seal
4. Features: High temperature resistance, corrosion resistance, wear resistance and aging resistance
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Color |
Black |
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Thickness |
3-6 mm |
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Size |
20mm to 3600 mm |
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Shape |
Round with holes |
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Surface Finish |
Smooth |
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Brand |
Deesawala |
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Product Type |
Moulded Flange Gaskets |
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Diameter |
Upto 3600mm |
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Warranty |
1 Year |
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Range |
PN 10, PN 16, PN 25 and PN 40 |
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Weight |
As per customer requirement |
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Model Name/Number |
DI pipe Gasket |
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Material |
EPDM, Neoprene, Nitrile, SBR, Natural |
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Grade |
Type 2 and Type 3 |
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Fluid Temperature |
Upto 250 Degrees |
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Hardness |
65 Shore A |
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Tensile Strength |
11 MPa |
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Minimum Order Quantity |
50 Number |
Types and Grades of EPDM Rubber
Commercial Grade EPDM Rubber
As the base material for most of our window and door seals, commercial grade EPDM offers an excellent resistance to weathering and most substances. It is often blended with other rubber compounds, such as SBR, to further reduce the price. Extrusions made from this material are usually extruded from a 65°sh A to 70°sh A EPDM compound.
Fire Retardant EPDM Rubber
Rubber seals and gaskets manufactured for the mass transport industry are usually extruded using a fire retardant compound with EN45545-2 certification. This material has low smoke and toxicity characteristics to help maintain a safe environment in enclosed spaces. We can also supply flame retardant sheeting with UL94-V0 certification.
Expanded EPDM / Neoprene Closed-Cell Sponge Rubber
EPDM is commonly blended with Neoprene during the production of closed-cell sponge rubber sections to create compressible watertight seals that stop water ingress. Like most other extruded sections or cut gaskets, it can be manufactured into a range of shapes and sizes in any hardness between 50kg/m3 to 190kg/m3.
EPDM Gasket Applications
Outdoor
Since EPDM gaskets are able to withstand extreme temperature fluctuations, water, and UV rays, they are ideal for use in outdoor applications.
Electrical
The material's high electrical resistance makes EPDM gaskets suitable for many electrical installations.
Open Joints
EPDM gaskets have a good compression set resistance, which allows for easy recovery, making it appropriate for applications where a joint may open up occasionally.
Our company has advanced machines and skilled workers, which can meet the needs of various enterprises
Certification
FAQ
As one of the leading parts for plate heat exchanger manufacturers and suppliers in China, we warmly welcome you to buy high-grade parts for plate heat exchanger for sale here from our factory. All equipment are with high quality and competitive price. For quotation, contact us now.
Alfa Laval Semi Welded Plate Heat Exchanger, Brazed Heat Exchanger