Design structure
Seat is made of PTFE reinforced with 25% glass fibre or PEEK . PTFE 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 class 1500 ball valves.
Anti static / fire safe / blow out proof stem
Flow coefficient CV
|
NPS
|
Cv value
|
|
Full port
|
Reduced port
|
|
1/4
|
8
|
|
|
3/8
|
8
|
|
|
1/2
|
12
|
8
|
|
3/4
|
33
|
12
|
|
1
|
48
|
33
|
|
1(1/4)
|
83
|
48
|
|
1(1/2)
|
120
|
83
|
|
2
|
250
|
120
|
