ECS & CXT-E Control Valve Retrofit for SW Double Wall Heaters
Technical Instruction Document
TID-0140_0A
12/30/2014
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, New York 10913
•
Phone: 800-526-0288
Page 22 of 58
PARTS LIST TABLE FOR VALVE ASSEMBLY SIZES 1.00” TO 2.00”
VALVE SIZE AND PART NUMBERS
ITEM
QTY
PART NAME
1.00 INCH
1.25 INCH
1.50 INCH
2.00 INCH
1
1
VALVE BODY
20762
20759
20758
20761
2
1
SEAT CAGE
16844
16845
16837
16843
3
1
BOTTOM PISTON
121540
121525
121502
121529
4
NOT USED
5
1
VALVE PLUG SHAFT
16849
16839
16838
16848
6
1
TOP PISTON
121539
12154
121501
121530
7
1
DISC SEAT
121541
121527
121510
121531
8
1
RETAINING DISC
121542
121513
121504
121532
9
NOT USED
10
PILOT SPRING
121528
121528
121528
121528
11
1
RETAINING RING
121545
121545
121545
121545
12
1
VALVE STEM
122655
122654
122651
122650
13
1
VALVE TOP GASKET
122136
122136
122136
122136
14
6
BOLT, HEX, 3/8-16
122405
122405
122405
122405
16
1
LOWER SHAFT
121979
121980
121980
121982
17
2
HEX NUT, 1/4-20
6-226
6-226
6-226
6-226
18
1
PACKING NUT
122664
122664
122664
122664
19
2
BOLT, HEX 3/8-16 x 5/8 LG
54014
54014
54014
54014
20
1
PACKING ASSY
121567
121567
121567
121567
21
1
VALVE TOP
16943
16943
16943
16943
22
NOT USED
23
1
LOCKWASHER
122666
122666
122666
122666
24
1
SEAT CAGE GASKET
123080
123081
123082
123083
ITEMS
25
THRU
30
NOT SHOWN
31
1
B O T T O M P I S T O N R E T A I N I N G N U T
122982
122982
122982
122982
32
1
TOP PISTON RETAINING NUT
121543
121543
121543
121543
33
1
LOWER PILOT SEAT ASSY
121505
121505
121505
121505
34
1
SEAT RETAINER
N/A
121559
121506
121506
35
1
VALVE STEM RETAINING NUT
121503
121503
121503
121503