Key 2* Valve Plug (Multiple Piston Rings) for Class IV Shutoff (Fisher ED Only)
STEM DIAMETER & VSC SIZE
VALVE SIZE,
NPS
mm
12.7
4
19.1
19.1
6
25.4
19.1
8
25.4
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) (the letter "H" is stamped on top for identification).
Key 2* Whisper Trim III Valve Plug (NPS 6 Fisher ED Only)
STEM DIAMETER &
17-4PH
VSC SIZE
STAINLESS STEEL
(H900)
mm
Inches
19.1
3/4
22A3259X012
25.4
1
22A3262X012
1. High temperature.
Key 3* Quick Opening Cage
VALVE SIZE, NPS
ED
1, 1-1/4, 1-1/2 x 1, or 2 x 1
1-1/2 or 2-1/2 x 1-1/2
2 or 3 x 2
2-1/2 or 4 x 2-1/2
3
4
6
8
Key 3* Linear Cage
VALVE SIZE, NPS
ED
1, 1-1/4, 1-1/2 x 1, or 2 x 1
1-1/2 or 2-1/2 x 1-1/2
2 or 3 x 2
2-1/2 or 4 x 2-1/2
3
4
6
8
Key 3* Equal Percentage Cage
VALVE SIZE, NPS
ED
1, 1-1/4, 1-1/2 x 1, or 2 x 1
1-1/2 or 2-1/2 x 1-1/2
2 or 3 x 2
2-1/2 or 4 x 2-1/2
3
4
6
8
Key 3* Whisper Trim III Cage (NPS 6 Fisher ED only)