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This standard describes electric motor actuators for valves and slide gates in water, wastewater, and reclaimed water utility systems. Electric motor actuators are designed to produce a multiturn rotary motion output to actuate a multiturn valve or...
This standard describes hydraulic and pneumatic linear and quarter-turn actuators for operation of valves and slide gates in utility systems. Actuator types. Actuators described in this standard consist of the following types (Figure 1): 1. Linear actuators...
2.1 Fig. 1 provides symbols for strainers, separators, and filters. 2.2 Fig. 2 provides symbols for valves. Valves are categorized under the following headings: globe, angle, check, ball, butterfly, gate, relief, manifolds, control, noise control, and miscellaneous. 2.3 Fig. 3...
PURPOSE This manual will explain fundamental concepts and operation of knife gate valves, providing users with a technical background to understand, specify, and install knife gate valves in applications for which they are intended. The information in this manual should...
This standard provides general requirements for the development of specifications for piston-type, linear pneumatic valve actuators for on/off applications, which henceforth shall simply be referred to as linear pneumatic actuator(s) in this document. This standard applies to:...
This standard describes power-actuating devices for valves 3 in. (75 mm) in diameter and larger and slide gates in ordinary water service. Actuator types. Actuators described in this standard are divided into the following types: 1. Electric-motor type producing a...
2.1 Figure 1 provides symbols for strainers, separators, and filters. 2.2 Figure 2 provides symbols for valves. Valves are categorized under the following headings: globe, angle, check, ball, butterfly, gate, relief, manifolds, control, noise control, and miscellaneous. 2.3...
A fully updated, practical guide to automated process control and measurement systems. This thoroughly revised textbook offers students a solid grounding in process control principles along with real-world applications and insights from the factory floor. Authored by an experienced engineering...
Hydraulic and pneumatic power actuators provide automatic control of ball, plug, and butterfly valves, as well as slide gates in water and wastewater applications. This new Manual of Water Supply Practices explains how various actuators are constructed and operated given...
2.1 Figure 1 provides symbols for strainers, separators, and filters. 2.2 Figure 2 provides symbols for valves. Valves are categorized under the following headings: globe, angle, check, ball, butterfly, gate, relief, manifolds, control, noise control, and miscellaneous. 2.3...
This standard covers open-channel, fabricated-metal slide gates and openchannel, fabricated-metal weir gates for water supply service. This standard also covers manual slide lift mechanisms and standard gate appurtenances. Power-driven actuators are specified in...