AMES 672GD-19 설치, 운영 및 유지보수 매뉴얼 - 페이지 8
{카테고리_이름} AMES 672GD-19에 대한 설치, 운영 및 유지보수 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. AMES 672GD-19 12 페이지.
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6. After removing the Stem Nut, the remainder of the Disc & Diaphragm Assembly should disassemble easily. Polish stem guide
surfaces with fine emery cloth to remove any mineral deposits and inspect for excessive wear. Remove any mineral build-up from
other components with wire brush or by using a Mineral Dissolving Solution. Inspect parts for wear and replace if necessary.
7. Inspect valve seat. If seat is not damaged, removal is not necessary. Valve seats 6" and smaller are threaded into the body of the
valve and require a seat removal tool (Figure 3) (Table 1 details the tool dimensions for seat removal). Valve seats 8" and larger are
held in the valve body with stainless steel cap screws. Remove seat retaining screws and lift seat straight up (Figure 4).
Table 1: Seat Removal Tool Dimension
Size
A
in
Pipe Size (in)
1 1/4
1
1 1/2
1
2
1 1/4
2 1/2
2
3
2 1/2
4
3
6
5
*Schedule 40 steel pipe
A
B (Min)
120
Figure 3
8
IOM-A-ACV-972-19_672-19 2115
B
Min. Length (in)
3.12
3.12
3.38
4.0
4.5
5.0
6.50
E Dia. 4 Holes
90 Apart
F
C TYP <3 PLCS>
D TYP <3 PLCS>
120 Apart
EDP# 1917110
C
D
in
in
0.38
0.25
0.38
0.25
0.38
0.25
0.38
0.38
0.50
0.38
0.50
0.44
0.62
0.44
Angle or
Channel Iron
Valve Seat
Valve Body
Figure 4
E (Dia.)
F
in
in
0.44
0.55
0.44
0.50
0.44
0.50
0.56
0.62
0.56
0.62
0.56
0.62
0.56
0.62
Nut and Washer
2PLCS
All-Thread
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