Conbraco's Apollo® Top Entry Ball Valves are ideally suited for jacketed applications. The top entry concept allows for continued access to stem packings and valve internals for ease of maintenance without disturbing the jacket itself or removing the valve from the pipeline.

Partial jacketing (Option "PJ") may be used on standard valves. Partial jacketing is applied just to the center section of the valve and does not incorporate the neck area or flanges of the valve. It is generally specified to allow the use of standard flanges and retain conventional flange bolting. 

Welded full jacketing may be applied to valves with standard flanges (Option "FS") or oversize flanges (Option "FO"). Valves and jacketing can be supplied in a variety of materials. Common materials are stainless valves with stainless jackets, but exotic combinations such as Alloy 20 valves with carbon steel flanges and carbon steel jacketing have been supplied to meet the performance and cost requirements for specific applications. Full jackets with standard flanges have modified flanges with blind tapped stud holes in place of the ordinary through holes.  When using over-sized flanges this is not needed because the backside of the flanges are accessable.

Clamp-on jacketing (Option "CJ") offers flexibility not available in the other configurations. Clamp-on jacketing can be applied to valves already in service, or can be removed and reinstalled on a replacement valve or another similar valve in another application. Clamp-on jackets can be supplied as a fabricated unit or in cast aluminum. A heat transfer cement can be applied between the clamp-on jacket and valve to improve its efficiency.

Combining these jacketed valves with various options, balls and seats enables the ability to handle a broad range of viscous materials.