Keuntungan dan pengoperasian katup bola tetap standar ASME
Advantages of stationary ball valves:
1. Penyegelan darurat dengan injeksi gemuk: In the event of unexpected seat seal failure due to foreign objects in the medium or fire, the grease injection valve provides a quick connection to the grease injection gun. The imported pump allows for convenient and rapid injection of grease into the seat seal, mitigasi kebocoran.
2. Reliable stem sealing and low operating torque: Selain cincin penyegel standar, the stationary ball valve also features an O-ring on the packing gland, ensuring reliable stem sealing with double sealing. Penambahan pengepakan grafit dan injeksi gemuk meminimalkan kebocoran batang setelah kebakaran. Bantalan geser batang dan bantalan dorong memudahkan pengoperasian katup.
3. Full bore or reduced bore: Stationary ball valves can be selected with either a full bore or reduced bore structure as needed. For full bore pipeline ball valves, the flow orifice diameter matches the pipeline inner diameter, memfasilitasi pembersihan pipa.
4. Extendable stem: The valve stem can be lengthened according to installation or operational requirements. Extended stem fixed ball valves are particularly suitable for applications requiring underground pipeline installation, seperti jaringan pipa gas kota. The extended stem size is determined according to customer requirements.
5. Pengoperasian yang Fleksibel: Memanfaatkan dudukan katup dan bantalan batang dengan koefisien gesekan rendah dan pelumasan mandiri yang sangat baik, torsi pengoperasian katup berkurang secara signifikan. Karena itu, bahkan tanpa pemberian minyak penyegel, the valve can be operated flexibly and smoothly for extended periods.
Operation and Use of Fixed Ball Valves
1. Before operation, ensure that the pipeline and fixed ball valve have been flushed.
2. Valve operation is completed by rotating the valve stem according to the input signal of the actuator: A 1/4 turn (90°) forward rotation closes the valve. A 1/4 turn (90°) reverse rotation opens the valve.
3. When the actuator’s direction indicator arrow is parallel to the pipeline, the valve is open; when the indicator arrow is perpendicular to the pipeline, katupnya tertutup.
