Adjusting Screw – Spring – Piston Stem O-ring – Cylinder – Piston – Piston O-ring – Yoke O-ring – Stem Clamp –  Gland Flange – Upper Packing – Yoke Clamp – Packing Spacer – Bonet – Bonet Flange – Seat Retainer – Seat Ring – Seat Ring Gasket – Body – Half Ring – End Flange – Adjusting Screw Gasket – Spring Button – Piston Retaining Nut – Actuator Stem Spacer – Actuator Stem Bushing – Actuator Stem O-ring – Actuator Stem – Cylinder Retaining Ring – Stoke Plate – Stem Bellows – Yoke – Upper Stem Guide – Upper Stem Guide Liner – Bonnet Flange Bolting – Lower Packing – Bonnet Gasket – Lower Stem Guide – Lower Stem Guide Liner – Plug