1.Features:
(1) 90° movement for full open/close position. 
(2) Excellent control characteristics.Tight shut-off even after innumerable operations.
(3) Installation cost considerably reduced because of very low weight and compact design.
(4) Longer life and reliable service with minimum component wear.
(5) Renewable seats. No supplementary gasket required with the adjacent pipework.
(6) Body & Stem totally protected from service fluid.
2.Technical Data:
(1) Nominal Diameter DN(mm)40(1-1/2’’)~1600(64’’) 
(2) Nominal Pressure PN(MPa): 1.0~4.0
(3) Testing Pressure PN(MPa): Shell: 1.5~6 Sealing: 1.1~4.4
(4) Working Temperature:-30~+450°C

3.Material could be:

4.Actuator could be:
(1) Manual 
(2) Worm Gear
(3) Electric 
(4) Pneumatic ( single / double cyliner )