
Design ED & EAD Class 125-600
31
Key 6* Standard Piston Ring
VALVE SIZE, INCHES
TO 427
_
C (800
_
F) (OXIDIZING)
TO 482
_
C (900
_
F) (NON-OXIDIZING)
482 TO 593
_
C
(901 TO 1100
_
F)
Design ED
Design EAD
TO 482
_
C (900
_
F) (NON-OXIDIZING)
GRAPHITE
(901 TO 1100
_
F)
GRAPHITE
1, 1-1/4,
1-1/2 x 1, or 2 x 1
1 or 2 x 1
1U2174X0012
1U2174X0022
1-1/2 or
2-1/2 x 1-1/2
2 or 3 x 1-1/2
1U2216X0012
1U2216X0022
2 or 3 x 2
2-1/2 or 4 x 2-1/2
3
4
6
8
4 x 2
3 or 6 x 2-1/2
4
6
- - -
- - -
1U2258X0012
1U2300X0012
1U2342X0012
1U2392X0012
1U5069X0012
10A3262X022
1U2258X0022
1U2300X0022
1U2342X0022
1U2392X0022
1U5069X0022
10A3262X032
Key 6* Multiple Piston Rings for Class IV Shutoff (Design ED Only)
VALVE SIZE, INCHES
NUMBER REQUIRED
TO 427
_
C (800
_
F) (OXIDIZING)
TO 482
_
C (900
_
F) (NON-OXIDIZING)
GRAPHITE
482 TO 593
_
C
(901 TO 1100
_
F)
GRAPHITE
4
3
17A3988X012
17A3988X022
6
3
17A3990X012
17A3990X022
8
2
17A3991X012
17A3991X022
Key 6* Whisper Trim III Piston Ring (6-Inch Design ED only)
GRAPHITE
TO 427
_
C (800
_
F) (OXIDIZING)
TO 482
_
C (900
_
F) (NON-OXIDIZING)
482 TO 593
_
C (901 TO 1100
_
F)
11A9727X022
11A9727X032
Key 7* Design ED Valve Plug Stem for Class IV Shutoff (Design ED only)
STEM
PLAIN BONNET
EXTENSION BONNET
VALVE
STEM
DIAMETER &
Stem Length
Part
Style 1
VALVE
SIZE, INCHES
DIAMETER &
VSC SIZE
Stem Length
Part
Number
Stem Length
Part
mm
Inches
mm
Inches
Number
mm
Inches
Part
Number
4
12.7
1/2
318
12-1/2
1U230535162
421
16-9/16
1U230635162
4
19.1
3/4
394
15-1/2
1K587735162
502
19-3/4
1U444635162
6
19.1
3/4
394
15-1/2
1K587735162
502
19-3/4
1U444635162
6
25.4
(1)
1
(1)
260
10-1/4
1K7119X0012
- - -
- - -
- - -
1. Type 667 actuator only.
Key 7* Whisper Trim III Valve Stem, 316 Stainless Steel (6-inch Design ED Only)
STEM
PLAIN BONNET
EXTENSION BONNET
STEM
DIAMETER &
Stem Length
Part
Style 1
Style 2
DIAMETER &
VSC SIZE
Stem Length
Part
Number
Stem Length
Part
Stem Length
Part
mm
Inches
mm
Inches
Number
mm
Inches
Part
Number
mm
Inches
Part
Number
19.1
3/4
443
17-7/16
1U294135162
533
21
1U928235162
616
24-1/4
1U6276X0012
25.4
1
505
19-7/8
1P847635162
635
25
1U627735162
- - -
- - -
- - -
*Recommended spare parts