Flowserve ROTADISK RD User Manual

ROTADISK Pneumatic Actuator RD & RDF
Operating Manual – BA3002 EN
3 Product Description
Page 33 of 79
3.3.2 Single-action Function (ROTADISK Pneumatic Actuator Type RDF)
The following functional description refers to a ROTADISK Pneumatic Actuator in
standard design ( see section 3.1).
The interior is pressurised through connection “P1” between the two pistons. The pistons
move apart and press the springs together. The force of both pistons is transmitted to by the
double swing arm to the drive shaft which rotates anti-clockwise by 90°. This moves the
pneumatic actuator into the “OPEN” position.
On venting the connection “P1“, the spring force resets the pistons to the basic position
whereby the drive shaft rotates clockwise by 90° and the pneumatic actuator moves into
the “CLOSED” position.
P1
P1

Flowserve ROTADISK RD Specifications

General

Brand	Flowserve
Model	ROTADISK RD
Category	Controller
Language	English