Our company provides 1000 tons to 10000 tons of Teflon seals and guide rings for China's large forging machinery, accounting for 85% of the market share. Keep a record of zero leakage for more than 10 years!
A.Performance and purpose
It can be divided into hole and shaft. It is composed of an anti-wear filled PTFE ring and an O-ring. The O-ring provides preload, which can compensate for the wear of PTFE square ring. The friction coefficient of PTFE is small and the dynamic and static friction coefficients are similar. It is suitable for high and low speed reciprocating motion and high pressure system, with two-way sealing effect. It is generally used together with guide ring. For specifications with hole diameter less than Φ 40, split groove shall be adopted.
B.The material of wear-resistant ring is polytetrafluoroethylene PTFE, and the O-ring is NBR or FKM.
C. Working conditions
Reciprocating speed: ≤ 5m / S
Working pressure: 0 ～ 40MPa
Service temperature: - 40 ℃ ~ + 260 ℃ (depending on the material of O-ring) Working medium: hydraulic oil, gas and water
D. Structural device