Version: - Diaphragm - Rotary actuator Travel: - 100 / 130 mm Spring position: - Multi-spring, symmetric Diaphragm area: - 1636 to 3447 cm2 Ambient temperature range: - -40 to 80 °C / -40°F to 176 °F Mounting of accessories: - VDI/VDE 3845 Principle of operation: The Type MD Actuator is equipped with a diaphragm and several symmetrically arranged return springs. The combination of several spring assemblies and the design of the piston rod bearing allow high torques to be transmitted. The short travel ensures very short actuating times. The actuator can be equipped with additional manual gears as well as end stops. A multi-stage version is possible. VETEC Ventiltechnik GmbH

Table 1: Technical data of MD450

Attachment type B Fail-close VETEC Ventiltechnik GmbH Attachment type B Fail-open Siemensstraße 12 · 67346 Speyer Telefon: 06232 6412-0 · Fax: 06232 42479 · E-mail: [email protected] · Internet: www.vetec.de