NIBCO 3-Piece Bronze Ball Valves User Manual
Installation and maintenance guidelines for nibco
INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS
CAUTION: Only qualified personnel should undertake the procedures outlined in this document.
NIBCO INC., its agents, representatives and employees assumes no liability for the use of these
procedures. These procedures are offered as suggestions only.
NIBCO Technical Services • Phone: 1.888.446.4224 • Fax: 1.888.336.4224
1
N I B C O I N C .
W O R L D H E A D Q U A R T E R S
1 5 1 6 M I D D L E B U R Y S T.
E L K H A R T, I N 4 6 5 1 6 - 4 7 4 0
U S A
P H O N E : 5 7 4 . 2 9 5 . 3 0 0 0
F A X : 5 7 4 . 2 9 5 . 3 3 0 7
W E B : w w w . n i b c o . c o m
Review Date: 01/18/2012
Original Date: NA
Installation and Maintenance Guidelines for
NIBCO
®
Three-Piece Bronze Ball Valves
I.
GENERAL INFORMATION
A. Standard Series 590 and 595 NIBCO ball valves may be installed for pressure or
vacuum service in either direction.
B. For threaded valves, care must be taken to exclude pipe sealants from the valve
cavity.
C. For solder valves:
1. Fit valve into place between the two pieces of tubing after cleaning and
fluxing.
2. Remove top two body bolts, loosen the other two.
3. Carefully remove center section without altering the radial position of the seat
ring or damaging O-ring seals.
4. Attach end pieces to tubing by soldering or brazing in a workman-like
manner.
5. Allow end pieces to cool.
6. Carefully install center section without altering the radial location of seat rings
or damaging O-ring seals.
7. Tighten body bolts evenly to the torques listed in Table 1.
TABLE 1
Valve
Torque
(Ft./Lbs.)
595,
1/4”
5
–
6
595,
3/8”
5
–
6
595,
1/2”
5
–
6
595,
3/4”
8
–
10
590,
1-1/4”
10
–
12
590,
1”
10
–
12
590,
1-1/2”
12
–
15
595,
1-1/4”
12
–
15
590,
2”
12
–
15
595,
1-1/2”
12
–
15
590,
2-1/2”
20
–
25
595,
2”
20
–
25
590,
3”
20
–
30
595,
2-1/2”
20
–
30