Keys 2*, 7*, and 8* Valve Plug and Stem Assembly for Plain Bonnet
VALVE SIZE,
ORIFICE SIZE
NPS
ES
EAS
mm
6.4
9.5
12.7
1/2 thru 2
1, 2
19.1
25.4
6.4
9.5
12.7
1/2 thru 2
1, 2
19.1
25.4
1/2, 3/4,
1
33.3
1, 1‐1/4
1‐1/2
2
47.6
1‐1/2 x 1
2 x 1
33.3
2, 3 x 2
4 x 2
58.7
2 x 1
‐ ‐ ‐
33.3
2‐1/2,
3,
73.0
4 x 2‐1/2
6 x 2‐1/2
2‐1/2 x 1‐1/2
3 x 1‐1/2
47.6
3
4
87.3
4
6
111.1
6
‐ ‐ ‐
177.8
8
‐ ‐ ‐
203.2
1. Not for use with 17‐4PH stainless steel cages above 210_C (410_F) or CoCr‐A cages above 427_C (800_F); use high temperature valve plugs for these applications.
2. For use with 17‐4PH stainless steel cages between 210_C (410_F) and 427_C (800_F) and with CoCr‐A cages over 427_C (800_F), note that the letter H is stamped on top for identification.