High pressure forged ball valve Application High pressure forged ball valves are suitable for use on pipelines of Class 600 ~ Class 1500, PN 160 ~ PN 320, being used for cutting off or switching on pipelines medium, of which operation manners are of manual in general, and worm gear and pneumatic or electric actuators are available, connections are of socket welding and female threaded ends.
Wafer type jacketed ball valve Temperature protection wafer type jacketed ball valve is a patented product developed by NAINAI company, of which the patent No. is ZL 93 2 04249.1. This design features impact in structure, light in weight, convenient in assembly, and easy for close and open, being suitable for use on various kinds of pipelines of Class 150, PN10~PN25, JIS 10K to cut off or turn on the medium in pipelines. Generally, the operation manners of temperature protection wafer type jacketed ball valve are of manual and worm gear, and pneumatic or electric acturtors as well.
Flanged ends jacketed ball valve According to working condition and customers' requirement, a couple of sealing materials for flanged ends jacketed ball valves may be adopted, such as reinforced PTFE, PPL or other hardened metal. Operation manners are of manual, worm gear, and pneumatic or electric actuators. Design pressure of the jacket is generally 1.0 MPa. As per customers' requirement, special design is available. In general, temperature protection jacketed ball valve is employing big sized flanges for connection ends, to which attention should be drawn when ordering.
Wafer type ball valve Wafer type ball valve is a patented product developed by NAINAI company, of which the patent No. is ZL 93 2 01428.3. This design is impact in structure, light in weight, convenient in assembly, and easy for open and close. Generally, operation manner of the valve is of manual and worm gear, and pneumatic or electric actuators as well. Wafer type ball valve is suitable for use on pipelines of Class 150, PN 25, JIS 10K to cut off or turn on the medium in pipelines.
Female threaded ball valve Application Female threaded ball valves are suitable for use on pipelines of medium or low pressure to turn off or swith on pipeline medium. Operation manners are in general of manual, and pneumatic or electric actuators are available.Based on design structures, the valves get divided into three pieces, two pieces, and one piece types.