NIBCO Flanged End Outside Screw and Yoke Cast and Ductile Iron Globe and Angle Valves - Manual (Page 8)

NIBCO Technical Services • Phone: 1.888.446.4226 • Fax: 1.888.336.4226
8
6.0 SPARE PARTS
Normal spare parts to be maintained on hand are listed on the NIBCO materials list in
the Bronze & Iron Valve catalog. If the bonnet or body are damaged, it is normally less
expensive to remove the entire valve from the line and install a new one.
When placing an order for spare parts, it is necessary to give the size, the valve 'figure
number found on the aluminum identification plate and also heat numbers, part
numbers, and date code numbers which are generally cast into the valve body on its
side. Designs have had modifications over the years which could render the parts
useless if they are of a different configuration, so proper identification is very important.
7.0 MAJOR REPAIRS
For other repairs or replacement not covered in the above description, contact the
Technical Services Department of NIBCO INC. for special instructions. Always give the
figure number and size shown on the identification plate affixed to the valve.
APPENDIX I
Body-to-Bonnet Bolt Installation Procedure for
NIBCO Cast Iron, Alloy Iron and Ductile Iron Valves
The following procedure outlines the methods to be used in the assembly of and field installation
of the body to bonnet bolts and nuts in order to assure the proper clamping stresses. The
correct sequence and torque for tightening the body-to-bonnet bolts and nuts is also identified.
These instructions apply for ASTM A307 Grade B high tensile strength bolting material used on
NIBCO cast iron, alloy iron, and ductile iron valve body and bonnet flange joints.
These instructions apply for non-lubricated ASTM A307 bolting materials used on NIBCO cast
iron, alloy iron, and ductile iron valve body and bonnet flange joints
.
1. Visually inspect all threads and remove all foreign matter such as rust, dirt, corrosion
and any lubricant.
2. Clean the body gasket and bonnet gasket seating area thoroughly. The gasket seating
area must be clean prior to assembly as the area becomes inaccessible after assembly.
The area is to be cleaned with a suitable solvent or cleanser that can remove all dirt,
grime and gasket particles.
3. The threads of the bolts and the surfaces under the bolt heads and nuts to be coated
with an anti-seize compound such as Felpro, type C5A Hi-Temp Anti-seize compound or
equal. The threads of the nuts should also be lubricated. Clean off excess lubricant with
solvent as noted in item 2.
.