商品簡介
Bosserman and Holstrom present a recommended method for calculating operating torque, head loss, and cavitation for quarter-turn valves typically used in water works service. This is a recommended practice, they warn, not an American Water Works Association standard. They provide engineers and technicians guidance on generally available methods for using quarter-turn valves as well as their cavitation, flow, and torque characteristics. For questions about specific situations or the applicability of specific values, they direct readers to manufacturers or suppliers. Annotation ©2017 Ringgold, Inc., Portland, OR (protoview.com)
