Catalog

Rexroth Actuator Positioners are compact, pneumatically operated devices used for accurate positioning of engine governor control arms, butterfly valves, carburetors and other low-force mechanisms.

Aventics offers three types of positioners: diaphragm with radial motion lever, diaphragm-linear, and cylinder-linear. All three models use the same basic principle of applying a predetermined air pressure (supplied by a Aventics Type "H" Controlair® Valve or Type M PLUS™ proportional pressure control valve) to act on a diaphragm or piston to compress a positioning spring. The actuator lever then assumes a specific position which corresponds to the applied pressure and to the control valve handle position.

Our Actuator Positioners feature light-weight, strong, die-cast construction with a minimum of connections. Years of performance in heavy construction vehicles, drill rigs, marine applications, and other types of installations have proven them to be rugged and highly dependable.

The A-2-H has the lowest power rating: 410 in-lb-degrees; this compares with the small "C" Type Linear Positioner of 650 in-lb-degrees, but has better accuracy due to the low- friction characteristics of its diaphragm operation. The A-2-H has a nominal stroke of 2" (adjustable from 1 7/8" to 2 1/4"). Integral mounting lugs make installation simple and clean.

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Item #

Old Part #

Type

Pressure Range

Accessory Kit

Weight

N/A P -059718-00011 N/A Complete Only N/A 3-15 psi N/A P57415 N/A 3 lb
N/A P -057159-00011 N/A Complete Only N/A 10-60 psi N/A P57415 N/A 3 lb
N/A P -057159-00012 N/A Complete Only N/A 10-60 psi N/A P57416 N/A 3 lb
N/A P -058430-00011 N/A Complete Only N/A 15-80 psi N/A P57415 N/A 3 lb
N/A P -057086-00011 N/A Complete Only N/A 35-90 psi N/A P57415 N/A 3 lb
N/A P -059718-00010 N/A Actuator Only N/A 3-15 psi N/A P57415 N/A 3 lb
N/A P -057159-00010 N/A Actuator Only N/A 10-60 psi N/A P57415 P57416 N/A 3 lb
N/A P -058430-00010 N/A Actuator Only N/A 15-80 psi N/A P57415 N/A 3 lb
N/A P -057086-00010 N/A Actuator Only N/A 35-90 psi N/A P57415 N/A 3 lb
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