Spartan Controls is pleased to advise that the Fisher® 657 actuator has been updated to become the Fisher® 657 size i, in sizes 30 to 70.
The new Fisher® size i will include an integral Fisher® DVC2000 and DVC6200 FIELDVUE mounting pad and an integral side handwheel mounting. These enhancements make it easier to work on the new Fisher 657 size i actuator and increases reliability and robustness.
The existing Fisher® 657 sizes 30,34, 40, 45, 46, 50, 60, and 70 becomes the new Fisher® 657 size i, sizes 30i, 34i, 40i, 45i, 46i, 50i, 60i, and 70i. Fisher® 657 sizes 80, 87 and 100 do not change. The updated Fisher® 657 size i, actuator is shipping on your factory ordered valves now and will also be added to Spartan inventory.
New 657 Size i Integral Mounting Pad for Fisher DVC2000/DVC6200
The updated Fisher® 657 size i will include an integral mounting pad for Fisher® DVC2000 and DVC6200 FIELDVUE positioners. This will simplify mounting by reducing the number of parts required and will increase vibration resistance. The traditional mounting kits can still be used on the new style 657 size i actuators, and both the traditional and the new integral mounting kits will be available from Spartan.
New 657 Size i Integral Side Handwheel Mounting Pad
The updated Fisher® 657 size i actuators will also include cast mounting pads to integrally mount side handwheel assemblies. This will eliminate the U-bolts, J-hooks and cap screws and nuts used in the traditional design. Side handwheel kit part numbers will be updated, and new and old style kits will be available from Fisher®.