All stainless steel ball valves designed and produced by our company to provide maximum operating life and reliability meet the requirements of American Petroleum Institute standards apis08 and API6D, British standard bs535 and American Society of mechanical engineers standard ASME B16.34. The valve consists of complete two and three valve bodies and internals.
Change of Internals and connection mode
Change of packing and gasket, fixed operation
Extended handle, pressure regulation
Electrostatic spring / fire protection standard
Customer's special casting requirements
Change of inner hole at welding end
Cleaning and packaging of oxygen / chlorine
It is easier to operate with the handle. It can also use worm gear, electric, pneumatic and hydraulic. They are used in more difficult environments.
2. Valve body and bonnet
Instead of using the valve body and bonnet below 3-piece 12 ", this structure is more convenient for the repair and replacement of external parts.
3. Drift diameter
Full bore, reduced bore and full bore are suitable for large flow media.
4. Connection mode
Flange connection, ring connection and butt welded pipe parts can be used.
The standard packing is generally made of Teflon to ensure that the packing is suitable for high temperature conditions under high cycle compression and severe operating environment.
6. Electrostatic spring
This connection is always on the ball and stem! The movement between the valve bodies is unloaded and finally stationary during operation.
7. Double row and double block
When the ball is completely closed or fully opened, the valve body through hole is isolated, and the blocked medium can be easily discharged to avoid excessive pressure.
8. Fire signs
It is designed according to api607 or bs6755 to ensure their operational applicability in case of fire. Secondly, the metal sealing surface is like a layer of isolation wall when the main sealing surface is damaged by fire. The valve conforming to api607 is equipped with graphite packing and gasket.
Technical specification: APL series
Design specification: API6D, api608, BS5351
Nuclear power temperature class: ASME B16.34
Structure length: ASME B16.10
Flange form and size: ASME B 16.5, asmeb16.47
Butt welding end connection: ASME B16.25
Socket weld connection: ASME B16.11
Threaded end connection: ASME b16.1.20
Inspection and test: API598, ap16d
Applicable temperature: - 196 ℃ ~ 550 ℃