SIPOS SEVEN Mechanical interfaces for all valve types

Rotary actuators can be supplied with flange connections andcouplings in accordance with DIN ISO 5210 and DIN 3338 orDIN 3210.

The output shaft for rotary actuators is designed as a hollow B1/B shaft. The torque is transmitted to the valve via a feather key. Other output shaft forms are achieved by means of inserts or extension modules.

Various forms of mechanical interfaces are available which can be used to connect the actuator to different control elements.

A output shaft*

Threaded bush for rising, non-rotating valve stems. The rotary movement of the actuator is converted into linear movement of the stem by means of a threaded bush (stem nut). This type of shaft can be supplied with a trapezoidal thread to DIN 103. The connecting flange with threaded and axial bearings is a unit which is suitable for absorbing thrust.

B2, B3, B4 and E output shafts

An insert with bore and featherkey is inserted into the hollow B1/B shaft. As with the hollow B1/B shaft, the torque is transmitted to the valve by means of a featherkey.

C output shaft

A claw coupling insert which is inserted ito the hollow B1/B shaft. The torque is transmitted to the valve by means oft he claws.

D output shaft

An insert with bore and featherkey is inserted into the hollow B1/B shaft. As with the hollow B1/B shaft, the torque is transmitted to the valve by means of a featherkey.

*The A output shaft is also available in a spring-loaded design (AF output shaft).

The output shaft forms A, B1 and C or A, B, C (if in accordance with DIN 3210) are suitable as hollow shafts for rising spindles. Spindle protection tubes can be supplied in different lengths.