rift VE TEC Ventiltechnik GmbH Data Sheet Rotary Plug Valve Type 73.3Double eccentric control valve for process engineering and industrial applications Valve size DN 25 to DN 250 Nominal pressure PN 63 to PN 160 Temperature -100 to 400 °C -148 to 752 °F VETEC Type 73.3 Rotary Plug Valve (example with mounted Type R Actuator) Valve body made of • Cast/carbon steel or • Stainless cast/carbon steel Seat version • Metal sealing, armored or unarmored The valves can be equipped with different accessories, such as positioners, solenoid valves and other accessories according to VDI/VDE 3845. Standard version For temperatures from -100 to 400 °C (-148 to 752 °F) Version Flanged version • DN 25 to DN 250, PN 63 to PN 160, face-to-face dimensions acc. to EN 558-1, Table 10, Series 2 Further versions • TA-Luft packing/double packing • Heating jacket • Special materials for body and trim • Noise-reducing features • Flange version with tongue/groove, male face/female face according to EN 1092-1 • RF and RTJ according to ANSI • Versions for higher and lower temperatures on request

Principle of operation The shaft/plug arrangement is eccentric (Figs. 3 and 4). The double-eccentric design of the rotary plug valve is achieved in combination with the offset of the plug's pivot. When turning the plug shaft from closed position in opening direction, the double-eccentric design allows the plug to lift off the seat smoothly without initial breakaway torque. The valve is not opened suddenly and shows a stable control response even with small opening angles. The rotary plug valve can be used for both directions of flow. Fig. 3: Double-eccentric principle For gases and vapors, the...

Table 1: Technical data

3a. seat with metal sealing FTO

3c. seat with soft sealing Flow rate Table 4: Weight in kg (without actuator)

Order specifications:

VETEC Ventiltechnik GmbH Siemensstraße 12 · 67346 Speyer Telefon: 06232 6412-0 · Fax: 06232 42479 · E-mail: [email protected] · Internet: www.vetec.de Sitz der Gesellschaft: 67346 Speyer · Registergericht: Amtsgericht Ludwigshafen HRB 51677 · USt-IdNr.: DE149689913 · Geschäftsführer: Uwe Vogel