Construction is as follows

1.Full port or conventional port;
2.90°locating and lock structure;
3.Special Y type handle;
4.Fire proof and anti-static;
5.Mounted flange as per ISO 5211;
6.Blow out proof stem;
7.Double sealing for the stem;
8.Bolted bonnet;
9.Socket weld ends to ASME B16.11
10.Screwed ends(NPT)to ANSI/ASME B1.20.1.
Design feature

Seat is made of PTFE reinforced with 25% glass fibre or PEEK.PEEK with 25% glass fibre can gain better performances normally used for class 800 ball valves.PEEK can gain better performances under high pressure and high temperature normally used for class1500 ball valves