Top entry ball valve
Top entry are designed to work in pipes with the most diverse types of fluids and pressure of gaseous, liquid, solid and phase mixtures.
In addition, Top entry ball valve can be supplied for applications that require fire-safe certification (ISO 10497) and / or low fugitive emission (ISO 15848-1) for toxic fluids.
The projects are developed based on international construction standards, such as API 6A, API 6D, ASME B16.34 and NBR 15827, to ensure the safety and quality of the valves.
The know-how of decades and the ISO 9001, API 6D, API Spec Q1, ONIP and CRC Petrobras certifications are the result of our main objective: QUALITY.
Chenggao Top entry ball valves have special certifications:
– Low Fugitive Emission (ISO 15848-1)
– Fire-Safe (ISO 10497)
– API 6D Monogram
Types of top entry Ball Valves Manufactured by Chenggao valve:
The trunnion top entry ball valve, different from the floating top entry ball valve, has the ball guided by the trunnions inside the valve, allowing work in a greater range of pressures using a resilient seat seal, in materials such as Teflon (PTFE), Reinforced Teflon (RPTFE), Peek ( Polieter Eter Ketone), Delrin (Poliacetal), Devlon V-API, among others.
Passage diameters (According to API 6A / API 6D / ASME B16.34 / NBR 15827):
The Top entry ball valves have a wide range of passage diameters, from 1/2 ” 72″
Pressure Classes (According to API 6A / API 6D / ASME B16.34 / NBR 15827):
150, 300, 600, 800, 900, 1500, 2500, 3000, 5000, 10000 and 15000.
Flanged * – ASME B16.5 and ASME B16.47
Butt Weld * (BW) – ASME B16.25
Socket Weld * (SW) – ASTM B16.11
NPT * – ASME B1.20.1
* With reduced or full port.
– Lever and gear operated
Top Entry Ball Valve this valve is ideal for all uses that require In-Line maintainability, allows piping.
Class 150 – 2500
Steel, Stainless Steel, Alloy Materials
2″ – 48″