Name: China Thermostat Valve Rubber Seal Manufacturers Suppliers Factory - Customized Service - Linde Polymer Tec
Brand: Linde Polymer
SKU: 259308202

Description

Technical Parameters

Linde Polymer Tec Co.,Ltd. is one of the most experienced manufacturers and suppliers of thermostat valve rubber seal in China, also supports customized service. Please feel free to buy high quality thermostat valve rubber seal for sale here from our factory.

Products Description

Thermostat-Valve-Rubber-Seal

Thermostat valve rubber seal is a rubber seal used in the engine cooling system. Its main function is to prevent coolant leakage. This seal is usually installed on the valve seat of the thermostat to ensure the correct flow of coolant inside the engine.

Main functions

Prevent coolant leakage: The main function of the Thermostat Valve Rubber Seal is to prevent coolant leakage when the thermostat is closed.

Maintain system pressure: The thermostat valve seal maintains the pressure in the cooling system through sealing so that the coolant can absorb and dissipate heat more effectively under pressure, ensuring the normal operation of the engine.

Precisely control the coolant flow: The sealing of the thermostat valve rubber seal is the basis for the normal operation of the thermostat valve. Only with good sealing can the thermostat valve accurately control the flow direction and flow of the coolant and achieve effective regulation of the engine temperature.

Prevent impurities from entering: The thermostat valve seal not only plays a sealing role but also prevents some impurities from entering the thermostat valve to a certain extent.

Design Features and Materials

Rubber seals are usually made of materials such as NBR and FKM, which have good heat resistance and oil resistance and can withstand the high temperature and pressure generated when the engine is working.

Nitrile rubber (NBR)
Oil resistance: Excellent, especially suitable for sealing media such as mineral oil, grease, and fuel.
Temperature resistance: Working temperature is -40°C to 120°C, with good mechanical properties at medium temperature.
Wear resistance: Good, suitable for dynamic sealing.
Applications: Suitable for hydraulic systems, oil seals, pump equipment, and automotive fuel systems.

Fluororubber (FKM)
High-temperature resistance: Can work in environments up to 250°C, suitable for high-temperature conditions.
Chemical resistance: Good corrosion resistance to a variety of chemicals, oils, acids, alkalis, and fuels.
Anti-aging performance: Excellent weather resistance and aging resistance, good performance under UV and ozone exposure.
Applications: Widely used in aviation, automotive engine seals, petrochemical equipment, and high-temperature fluid systems.

FKM 75	Property	Unit	Test Method	Test Parameter	Value
	Hardness	Shore A	ASTM D 2240		77 +3/-2
	Tensile Strength	MPa	ASTM D 412		15
	Specific Gravity	g/cm³	ASTM D 297		1.85
	Ultimate Elongation	%	ASTM D 412		183
	Modulus at 100%	MPa	ASTM D 412		6.2
	Compression Set	%	ASTM D 395 B	22h / 200°C	22.5
	Low temp. resistance	°C	ASTM D 1329	TR10	-16

NBR 70	Test Method		Norm		Test Values
	Hardness		ISO 868 SB		70 ± 5 IRHD
	Specific Weight		ISO 2781		1.27
	Tensile Strength at break		ISO 37		13 N/mm²
	Elongation at break		ISO 37		300%
	Compression Set 70h/23°C 48h/70°C 48h/110°C		ISO 815 A		21% 13% 19%
	Heat Ageing 48h/110°C Hardness Change		ISO 188		+8%
	Immersion in FAM DIN 51604 2/B 48h/23°C Hardness Change Volume Change		ISO 1817		-17% +36%
	Immersion in Diesel, 48h/23°C Hardness Change Volume Change		ISO 1817		-1% +2%

Application areas

1. Automotive industry: Automotive cooling systems.

2. HVAC (heating, ventilation, and air conditioning) systems: Thermostatic valves.

3. Industrial equipment: Cooling equipment.

4. Aerospace: Engine cooling systems.

about Us

Company profile

Linde Polymer Tec Co., Ltd. mainly produces a variety of rubber compounds and rubber seals and currently has more than 3,000 material formulas and more than 2,000 product specifications. Products are suitable for automotive, aviation, machinery, petrochemical, medical, food, electronics, military, industrial, and other fields. Since the establishment of the factory, the company has completed the process consistency operation, and the product yield rate has reached 97.1%.