Company Profile of Shanghai Yinian Sealing Technology Co., Ltd.

1、 Introduction to spring actuated seal ring Spring actuated PTFE seal is a high-performance seal with special spring in U-shaped PTFE. With proper spring force and system fluid pressure, the sealing working lip is pushed out and gently pressed against the sealed surface to produce a very excellent sealing effect. The sealing working lip has the best short and thick characteristics, so as to reduce friction and prolong service life. Polytetrafluoroethylene is a sealing material with excellent chemical resistance and good heat resistance. It can be used in most chemical fluids, solvents, hydraulic oil and lubricating oil. Its compression deformation is very small, so it can give full play to the sealing performance for a long time. The service temperature range can be from refrigerant to 300 ℃, the pressure from vacuum to ultra-high pressure 700kg / cm2 (about 70MPa), and the moving speed can be as high as 20m / s. The spring can be selected from stainless steel and corrosion-resistant alloy according to different service environment, so it can be applied to various occasions of high-temperature corrosive fluid. Wing year can make spring rings with an outer diameter of 1.5mm to 1.5m, and existing customers are using 1.5mm spring rings.