Масляное уплотнение для вакуумного насоса ID36 безмасляного применения Edwards GXS450 GXS250

Question: What's the material of the seal?
Answer: PTFE + SUS302 Spring

Question: What's the size means? Why my size not in your size chart?
Answer: the size d*D*L=rod diameter*groove diameter*seal width
For other sizes and special types, pls contact us: sales(at)chenmingseal.com


Question: Is the seal for High Pressure, High Rotate Speed, High temperature?
Answer: Yes, it's pressure: vacuum to 30Mpa (special type 70Mpa), Speed: 15m/s (special type 40m/s), Temperature: -200 C to +300 C

Question: How long is the seal's service life?
Answer: Tested life is 8000 hours with condition: pressure 1.5Mpa, speed 5m/s, temperature 200 C, media lubrication oil.


Question: How long is the lead time?
Answer: We'll ship out in 24 hours when In Stock; Customized lead time is 15 days.


Question: How long can we receive the seal?
Answer: It's depends on your location and express, usually 30-60 days by china post air mail/ special line YW, 7 days by EMS/UPS/FEDEX/TNT

Question: Are you factory? Where are your loacation?
Answer: Yes we are factory. Located in Ningbo China.