PQK rubber seals of the thermostat for OEM,adopts an innovative single-end planar sealing structure. Through a precise grinding process, a micron-level surface flatness is achieved. Coupled with the design of a highly elastic sealing lip, it ensures a tight fit between the sealing surface and the valve seat. The valve and the high-strength spring are coaxially assembled through the coil locking technology to form a stable pressure feedback system. When the medium pressure reaches the set threshold (customizable between 0.3-1.5MPa), the spring compresses to drive the valve to open precisely. After the pressure drops, the self-recovery property of the rubber material works in coordination with the spring's resilience to achieve zero-leakage sealing.

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Description

The product uses special rubber materials, which are filled and modified at the nanoscale, and has excellent temperature resistance (-40°C to 180°C) and chemical corrosion resistance. It is widely applied to automatic control systems such as automotive engine thermostats and air conditioning temperature control valves. Having passed the TS16949 quality system certification, it maintains stable performance during one million opening and closing cycle tests, effectively improving the response accuracy and reliability of the temperature control system and providing a reliable guarantee for the efficient operation of the equipment.

ABOUT US

Zhejiang Shangyu Oil Seal Co., Ltd. was founded in 1969 in China. PQK mainly produces oil seals ,O-rings ,Adhesive bonded seals,rubber products for the domestic and foreign automotive industry, household appliances, industrial machinery, Technical Committee PQK has obtained 46 national invention and utility model patents.
PQK has ISO 9001:2000 and IATF16949 certification. internal management system by ERP. products are used as supporting products for many domestic and foreign companies.PQK has the entire production capacity for rubber seals, including product R&D. Automatic high-speed punching machines for the production of rubber seals, numerically controlled metal processing , automatic injection vulcanizing machines, numerically controlled cutting , digital testing equipment, etc

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We firmly adheres to the concept of compliance, ensuring every product is reliable and safe to use.

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PROFESSIONAL RUBBER SEALS MANUFACTURER IN CHINA: ZHEJIANG SHANGYU OILSEALS CO.,LTD focus on the Oil seal,reducer seals,seal gasket,bearing seals

Provide customers with professional customized solutions and after-sales protection