CLA-VAL 90-01 - Page 14

COVER
PIPE PLUG
COVER BEARING
SPRING
STEM NUT
DIAPHRAGM WASHER
DISC RETAINER
BODY
*SPACER WASHERS
DISC GUIDE
SEAT
PIPE PLUG
STEM
SEAT O-RING
STUD
8" and Larger
*
DIAPHRAGM
*
DISC
*
Repair Parts
Seat Screw
8" and Larger
(Globe
or
Angle)
PIPE PLUG
HEX NUT
8" and Larger
Cover Bolt
6" and Smaller
KO DISC GUIDE
KO SEAT
KO Anti-Cavitation Trim Option
N-100-01 (R-3/2011
BOLT/NUT TORQUING PROCEDURES ON VALVE COVERS
4
BOLTS
6
BOLTS
8
BOLTS
12
BOLTS
16
BOLTS
20
BOLTS
4
3
2
1
65
4
3
2
1
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
12
11
10
9
8
7
6
5
4
3
2
1
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
20
19
18
17
16
15
14
13
12
11
Follow this procedure when reassembling MAIN Valve: 1. Tightens bolts/nuts in a “Star” or “Cross-Over” pattern following the numbers shown above to insure that cover seats evenly on the diaphragm material and body. 2. Torque the bolt/nuts in three stages with a "Star" or "Cross-Over" pattern
for each stage:
A. To approximately 10% of final torque. B. To approximately 75% of final torque. C. To final required torque.
3. Valves that are to be tested to 375 PSI or higher should be retorqued
after 24 hours.
100-01 Hytrol Main Valve Assembly
Distributed By: M&M Control Service, Inc.
www.mmcontrol.com/claval-index.php
800-876-0036 847-356-0566