8
4
3
18
2
6
5
7
13
10
8
1
9
14
16
15
YARWAY
9100 SERIES ARC
®
VALVE
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
All surfaces in contact with one another should be completely coated
with a modurate amount of lubricant. Instert the O-ring into the
groove of the body and completely seat the insert into the body. If
binding occurs, remove the insert and determine the area of
obstruction. Take steps necessary to clear the obstruction.
Disc-bypass bushing assembly
1" to 1½" [25 to 40 mm] valves
Old restraining method
New restraining method
PARTS AND MATERIALS
Item
Part
Material
1
Body
ASTM A351 type CF8M (J92900)
2
Bonnet
ASTM A351 type CF8M (J92900)
3
[2]
Disc
ASTM A479 type S21800A
(Nitronic 60 bar)
4
[1][2]
Snubber-seal assembly
Turcite 51 (Glyd ring) and
TFE/Propylene (O-ring)
5
[2]
Bypass bushing
ASME SA564 Grade 630
(17-4 PH Bar) Condition SA (S17400)
6
[1][2]
O-ring
TFE/Propylene
7
[1][2]
O-ring
TFE/Propylene
8
[1][2]
Spiral ring
Inconel X-750
9
[1][2]
Bypass tube
ASTM A312 type 304
10
Spring retainer
ASME SA479 type 316
13
[2]
Spring
17-7 PH Condition CH-900
14
[1][2]
O-ring
TFE/Propylene
15
Stud
ASTM A193 Grade B7 (G41400)
16
Nut
ASTM A194 Grade 2H (K04002)
18
Nameplate
300 series stainless steel
NOTES
1. Recommended spare parts for service inspection.
2. Recommended spare parts for service overhaul.
Spring
retainer tool
1
/
16
" diameter rod
3
/
8
" both ends
5"
Spring
retainer
dowel
