Linde Polymer Tec Co.,Ltd. is one of the most experienced manufacturers and suppliers of dry fire valve disc and valve seat rubber seals epdm in China, also supports customized service. Please feel free to buy high quality dry fire valve disc and valve seat rubber seals epdm for sale here from our factory.
The sealing of the dry fire valve disc and valve seat rubber seal is crucial, and the rubber seal is the key component to ensure its sealing.
Dry fire valve disc and valve seat rubber seal EPDM Gaskets
Products Materials
Ethylene propylene diene monomer (EPDM)
Aging-resistant; not prone to hardening and cracking. Effectively resists erosion by ultraviolet rays, ozone and various chemical substances, and is very suitable for various harsh working conditions that may be encountered in fire protection systems.
Good high and low temperature resistance, able to work stably in a wide temperature range, ensuring that when a fire occurs, whether in high temperature environment or cold conditions, it can maintain a reliable sealing effect to prevent medium leakage and ensure the normal operation of the fire protection system.
Performance Advantages
1. Excellent sealing performance: The rubber seal can form a tight fit with the valve disc and the valve seat, effectively preventing the leakage of gas, liquid and other media, with high sealing reliability, reducing the fire safety risk caused by leakage.
2. Good elastic recovery ability : During the frequent opening and closing of the valve, the rubber seal can continue to maintain good sealing performance, reducing the leakage risk caused by the deformation of the seal and improving the service life and working efficiency of the valve.
3. Resistance to media corrosion: It can withstand various media commonly used in fire protection systems, such as water, foam liquid, chemical fire extinguishing agents, etc. It will not undergo chemical reactions due to contact with these media, resulting in performance degradation, ensuring stable operation in different fire extinguishing scenarios and providing a solid foundation for the smooth progress of firefighting operations.
Products Installation and maintenance
1. Installation: When installing rubber seals, ensure that the disc and seat surfaces are clean, flat, free of impurities, oil and damage. The installation process should be gentle, avoiding excessive stretching or twisting of the seal, so that it can fit naturally and evenly on the sealing surface. After installation, a preliminary sealing test should be performed to ensure that the seal is installed in place and there is no leakage.
2. Maintenance: Check the rubber seals regularly to see if there is any wear, aging, deformation, etc. If the seal surface is slightly damaged, it can be repaired with a special rubber repair agent; if the damage is serious, it needs to be replaced in time. At the same time, keep the environment around the valve clean to prevent dust and debris from adhering to the seal and affecting its sealing performance.
replacement requirements
When the rubber seals have the following conditions, they should be replaced in time: First, the sealing performance is significantly reduced, leakage occurs, and it cannot be solved by repair measures; second, the seals are seriously aged, hardened, cracked or deformed, and cannot restore elasticity; third, after long-term use (generally determined according to the maintenance cycle and actual use of the fire protection system, such as 5-8 years), even if there is no obvious damage in appearance, to ensure the reliability of the fire protection system, replacement should be considered. When replacing, be sure to use high-quality rubber seals of the same model and specification as the original to ensure the normal sealing performance and overall operation of the valve, and provide continuous and reliable protection for fire safety.
Our dry fire valve disc and valve seat rubber seals can be customized. Please provide the corresponding material specification requirements and size drawings so that we can make a more accurate judgment.
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Details(EPDM70) |
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Product Parameters |
-Hardness (Shore A): 70 ± 5 |
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-Tensile strength: ≥ 10 MPa |
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- Elongation at break: ≥ 300% |
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-Compression set (70℃×22h): ≤ 30% |
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- Temperature range: -40℃ to 120℃ |
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- Density: approx. 1.12 - 1.18 g/cm³ |
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-Tear strength: ≥ 25 kN/m |
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Application |
-Automobile field: Sealing gaskets of automobile engines, door and window sealing strips, radiator hoses, etc., using their good heat resistance, aging resistance and sealing properties to ensure the normal operation of automobile engines and prevent liquid and gas leakage. At the same time, in terms of the sealing of the automobile body, it can effectively prevent wind, rain, dust, etc. from entering the car, improving the comfort and safety of the car. |
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- Construction industry: Building door and window sealing strips, roof waterproofing membranes, water supply and drainage pipe seals, etc., can adapt to the temperature changes of buildings in different seasons and environments, maintain good elasticity and sealing performance, prevent rainwater leakage, ensure the waterproof and moisture-proof effects of buildings, and extend the service life of buildings. |
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-Industrial piping system: The sealing of chemical pipelines, heating pipelines, air conditioning pipelines, etc. can withstand the erosion of various industrial media, ensure the sealing of pipeline connections under different temperature and pressure conditions, prevent media leakage, and ensure the safety and stable operation of industrial production. |
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-Electrical equipment: As the insulation and sheath material of wires and cables, as well as the seal of electrical equipment, it has good electrical insulation performance and weather resistance, can protect wires and cables from the influence of the external environment, and prevent moisture and dust from entering the electrical equipment, thus ensuring the normal working performance and safety of the electrical equipment. |
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