Emerson Fisher 657 And 667 Installation Instructions
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Fisher 657. FISHER 657ES DVC6010 300 STEEL FLANGED 11/2IN CONTROL VALVE Fisher 657 and 667 Actuators Mounted on easy-e Valves Cold Service Applications—Enhanced product specifications for all sizes of 657 and 667 diaphragm actuators allow performance to -50C (-58F) Use of a positioner is recommended to ensure responsiveness in applications operating below-40C (-40F).
FISHER 657ES DVC6010 300 STEEL FLANGED 11/2IN CONTROL VALVE from www.aucto.com
The 657‐4 actuator in sizes 70/70i and 87 is also covered Refer to separate instruction manuals for information about the valve positioner and other accessories used with these actuators.
FISHER 657ES DVC6010 300 STEEL FLANGED 11/2IN CONTROL VALVE
The 657‐4 actuator in sizes 70/70i and 87 is also covered These spring-opposed diaphragm actuators position the valve plug in the valve in response to varying controller or valve positioner pneumatic output signals The 657‐4 actuator in sizes 70/70i and 87 is also covered
FISHER 657ES 2IN STEEL FLANGED CONTROL VALVE D393608. Fisher 657 and 667 Actuators Mounted on easy-e Valves Cold Service Applications—Enhanced product specifications for all sizes of 657 and 667 diaphragm actuators allow performance to -50C (-58F) The 657 actuator is direct-acting, while the 667 is reverse-acting.
FISHER 657. The Fisher® 657 and 667 spring and diaphragm actuators are designed to provide dependable throttling or on-off operation of linear, sliding-stem automated control valve assemblies Use of a positioner is recommended to ensure responsiveness in applications operating below-40C (-40F).