Fonti industriali verificate
- Scheda tecnica per valvole industriali: API 6D specifies manufacturing requirements for pipeline and piping valves.
- Scheda tecnica per valvole industriali: A trunnion-mounted construction supports the ball on bearings and is commonly used for larger sizes or higher differential pressures.
- Scheda tecnica per valvole industriali: The supplier data sheet must confirm size, pressure class, bore, sealing arrangement and operating torque.