NIBCO Bronze Gate Valves - Manual (Page 3)

NIBCO Technical Services • Phone: 1.888.446.4224 • Fax: 1.888.336.4224
3
When more detailed information is required, the NIBCO 5-100 catalog should be
referred to using the valve figure number as the guide.
D. SERVICE
When installing valves for service in corrosive media, the NIBCO Chemical
Resistance Guide may be consulted for specific data or contact can be made
with NIBCO Technical Services. It is, however, the obligation of the user to make
the ultimate decision of fitness for use.
E. PRESSURE TEMPERATURE RATINGS
Pressure and temperature ratings may be found in the Engineering section of the
latest printing of NIBCO catalog 5-100. This information is taken from applicable
ANSI Standards.
F. CODES & REGULATIONS
A valve used under the jurisdiction of the ASME Boiler and Pressure Vessel
Code, the ANSI code for pressure piping, government or other regulations, is
subject to any limitation of that code or regulation and to the applicable ANSI
Standard.
G. PRODUCTION TEST PROCEDURES
Valves are pneumatically shell tested and seat tested at a pressure of 80 psi in
accordance with Federal Specifications and MSS SP-80 Manufacturers
Standardization Society Requirements.
H. PRINCIPAL DIMENSIONS
Principal dimensions of the valve are specified in the appropriate catalog.
1.3 DETAILED
DESCRIPTION
The gate valve listed above and covered in these instructions are bronze valves made of
ASTM B62 material for Class 125 and 150 valves and from ASTM B61 material for
Class 300 valves. Generally, there may be Class 200 valves also listed, however,
NIBCO has optioned not to provide these valves but rather give a Class 300 valve in lieu
of the Class 200.
The valves are operated with the handwheel and are used to start or stop the flow of
fluids in piping systems. Clockwise rotation of the handwheel closes the valve.
The body and bonnet are held together by threads of the male and female type; male
threads being on the bonnet section and female threads being within the body. There
are no gaskets between the body and bonnet to affect seals. This is strictly a metal-to-
metal seal as required by standards. This general arrangement is used on the Class 125
and is also used on the Class 150 gate valves.