Instruction Manual Form 5193 April 2001
Type 585 and 585R
Type 585 and 585R Size 100 Piston Actuators Contents Introduction
............................... Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 1 1 1
Installation
................................. 2 Actuator Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Accessory Mounting and Connections . . . . . . . . . . 7
Maintenance
............................... 8
Parts Ordering . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
Introduction Scope of Manual This instruction manual provides information on installation, maintenance, and parts ordering for the Type 585 and 585R Size 100 piston actuators. Information for other equipment used with these actuators can be found in separate instruction manuals. W6295/IL
Description Figure 1. Type 585 Size 100 Actuator
Specifications Specifications for the Type 585 and 585R piston actuators are given in table 1. Some specifications for an individual actuator as it originally comes from the factory are stamped on a nameplate attached to the yoke.
D100296X012
The compact Type 585 and 585R pneumatic spring-and-piston actuators (figure 1) provide accurate throttling or on-off control of sliding-stem valves. Both types have a double-acting cylinder requiring pressure for opening as well as closing action. Type 585 actuator bias spring action fully retracts the piston stem upon loss of cylinder pressure, while Type 585R actuator bias spring action fully extends the piston stem upon loss of cylinder pressure. No additional parts are required to convert from one actuator type to the other.