PTFE ball valve seat and valve stem sealing gasket
Description
PTFE, ball valve seat is manu-factored by molding method with PTEF granular resin. PTFE, Compared with other plastics, has a superior properties against chemicals and temperature.
Main property
Properties |
Unit |
Result |
Apparent density |
g/cm3 |
2.10-2.30 |
Tensile strength (min) |
MPa |
14.0 |
Ultimate elongation (min)(min) |
% |
140 |
Specification
Nominal(Dg) |
Seat(mm) |
Gasket of stem (mm) |
||||
outside diameter |
Inside diameter |
High |
outside diameter |
Inside diameter |
High |
|
15 |
24 |
15 |
5 |
20 |
12 |
4 |
23 |
15 |
4.5 |
14 |
9 |
4.8 |
|
20 |
32 |
20 |
5 |
20 |
12 |
4 |
28 |
20 |
5 |
17 |
11 |
5.5 |
|
25 |
36 |
25 |
5.5 |
24 |
16 |
5 |
22 |
14 |
4 |
||||
32 |
44 |
32 |
5.5 |
24 |
16 |
5 |
28 |
18 |
5 |
||||
40 |
54 |
40 |
6 |
30 |
20 |
5 |
29 |
18 |
5 |
||||
50 |
64 |
50 |
6.5 |
34 |
24 |
5 |
29 |
18 |
5 |
||||
65 |
95 |
65 |
14 |
38 |
28 |
5 |
80 |
105 |
80 |
14 |
38 |
28 |
5 |
115 |
80 |
16 |
||||
100 |
132 |
100 |
16 |
48 |
32 |
6 |
150 |
190 |
150 |
22 |
50 |
38 |
6 |
Application
Ball valve seat gasket.