1.The gearbox is dirven by a bevel gear and can be separately assembled with valve as a manual valve,and also assemble with electric device and an electric driven valve.

2.Small volume,light weight,and output shaft is tooth scarfionted with valve.

3.Long life for full close and seal.

4.The output flange accords with standard ISO5210 and can be machined as customers special requirements.

5.The indication device of open degree is optional.