Page 153 - Valve Selection Handbook

140 Valve Selection Handbook

Figure 3-99.
Inherent and Installed
Flow Characteristics
of Weir-Type
Diaphragm Valves.
(Courtesy of
Sounders Valve
Company limited.)

Standards Pertaining to Diaphragm Valves

Appendix C provides a list of U.S., British and ISO standards pertain-
ing to diaphragm valves.
Applications

Duty for weir-type and straight-through diaphragm valves:
Stopping and starting flow
Controlling flow
Service for weir-type diaphragm valves:
Gases, may carry solids
Liquids, may carry solids
Viscous fluids
Leak-proof handling of hazardous fluids
Sanitary handling of Pharmaceuticals and foodstuffs
Vacuum
Service for straight-through diaphragm valves:
Gases, may carry solids
Liquids, may carry solids
Viscous fluids
Sludges
Slurries, may carry abrasives
Dry media
Vacuum (consult manufacturer)