Page 1: ...service hotline at 412 279 0044 We appreciate your comments And thank you for choosing Red Valve Series 700 actuators are pneumatic diaphragm operators that have spring return in both direct and rever...
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Page 3: ...ING ACTUATOR Refer to Figure I and the Actuator Assembly Drawing 3 3 1 Disassembly A Bypass or isolate the valve and reduce the diaphragm pressure to atmospheric B Rotate the spring adjuster nut Item...
Page 4: ...Item 29 on the stem Rotate the spring adjuster nut until the spring is just starting to be compressed F Place the base item 3 on the cover and install the hex head cap screws item 4 hex nuts Item 5 a...
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Page 8: ...nnector to remove the remaining spring preload 3 3 DIRECT ACTING ACTUATOR Refer to Figure I and the Actuator Assembly Drawing 3 3 1 Disassembly A Bypass or isolate the valve and reduce the diaphragm p...
Page 9: ...ase and install the hex head cap screws Item 4 hex nuts Item 5 and eyebolts Item 6 Torque the fasteners to the value on the assembly drawing G Place the upper stem weldment Item 22 on the stem so that...
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