If the signal pressure should fail, the spring will force the stem downward, providing “fail- closed action” for “push down to close” valves Instruction Manual Figure
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[PDF] CVS Type 667 Diaphragm Actuator - Global Supply Line
CVS Type 657 Diaphragm Actuator Sizes 30-70 All CVS Controls equipment, including actuators, are to be installed and maintained in accordance with
[PDF] CVS Controls Ltd Product Catalog
CVS Controls focuses on manufacturing, sales, and support of control erated by a type 128 spring and diaphragm actuator, the CVS Series 657 667
[PDF] product catalogue - CVS Controls
The CVS Series 657 is a direct acting, spring opposed diaphragm actuator with a 4 inch maximum travel Signal pressure supplied to the upper housing chamber forces the stem downward When the signal pressure is reduced, the compressive force on the spring moves the stem upward
[PDF] Fisher™ 657 and 667 Diaphragm Actuators - Emerson
Features n Application Versatility—Five actuator types in eleven Spring rates, travel stops, and manual specifications for all sizes of 657 and 667 diaphragm
[PDF] CVS Type 667 Diaphragm Actuator - PDF4PRO
If the signal pressure should fail, the spring will force the stem downward, providing “fail- closed action” for “push down to close” valves Instruction Manual Figure
[PDF] Type 657 and 667 Diaphragm Actuators
Spring rates, travel stops, and manual operators are available for nearly any control valve application D Excellent Linearity Between Loading Pressure and Travel
[PDF] Instruction Manual - Oceanic Controls
excellent pressure and flow control on steam, gasses and various liquid applications: 1 600 Raised Face, or Ring Type Joint flanges as per 2 Installation 1 Before installing a CVS Series E valve carefully Apply varying pressures to the diaphragm case and observe 117 252 375 477 553 611 657 698 727 746 ---
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