Wear-resistant HDPE Board Manufacturers

Metal oval gasket is made by forging, heat treatment and mechanical finishing. It is a kind of metal sealing gasket used in pipeline flanges such as crude oil and natural gas, high-speed joint flange surfaces of pressure vessels, high temperature and high pressure valve covers, etc. Especially in places with fluctuating pressure and temperature, it can still maintain a good sealing performance. The commonly used R-type oval gaskets are divided into oval and octagonal according to the cross section.

PTFE film has limitations including poor mechanical strength, low radiation resistance, and challenges in bonding and processing.

Asbestos packing is mainly used for weak acid and alkali, liquid ammonia, water, oil media, valves and other working conditions. It has the best effect of static sealing and anti-corrosion sealing. Fiber packing has good thermal conductivity, acid and alkali resistance, and is suitable for various solvents. , Gasoline, water, liquid nitrogen medium pump, valve, reaction kettle seal (another good thermal conductivity, acid and alkali resistance, high temperature resistance, suitable for dynamic and static seals under high-speed operation conditions).

Non-asbestos gaskets are roughly divided into non-asbestos rubber sheet gaskets and non-asbestos copy sheet gaskets according to their material, process performance and use. They are made of aramid and other organic fibers and plant fibers, nitrile rubber and minerals. Non-asbestos rubber sheets and non-asbestos gaskets manufactured by rolling or copying process.

1. Natural rubber (NR) Natural rubber (NR) is an isoprene polymer. Has excellent resilience, tensile strength, elongation, abrasion resistance, tear and compression set properties are superior to most synthetic rubbers. Suitable for making tires, shock absorption parts, buffer ropes and sealing parts. Not resistant to oil, poor weather resistance, ozone and oxygen performance. Use temperature range -60 ~ 100 ℃.

Flange insulation group is one of the most common, effective and important connection forms in petrochemical plants, natural gas plants, offshore oil projects, etc. Various pipelines, pipe fittings, valves, instruments and equipment, flange insulation groups have unique performance and advantages. Use insulation kit seals on flanges to protect your pipes from the risk of leakage, sealing is achieved by the fit of flanges, insulating washers, bushings, washers, washers, bolts and nuts. Flange junction is connected and sealed to prevent medium leakage at the flange junction, as well as anti-corrosion and conductive insulation Protect.