1.Robust, compact and light weight design due to the use of high-quality aluminium die cast material
2.Synchronous or brake motors without over-run, for precise positioning and mode of operation S4-1200 c/h
3.ISO 5211 connection to valve and exchangeable drive bush of sintered metal
4.Easy-to-see mechanical position indicator, adjustable
5.Covered stop screws, easily adjustable /- 5°
6.Electrical limit switches that are easily adjustable
7.Simple, continuously adjustable torque limi ting of 50 - 100 % in open and close directions （VTQ102 and bigger）
, continuously adjustable torque limi tin