Product Name: Brass ball valve with butterfly handle
Connection: Male; Female; Male to Female; Compression
Size: 1/4” ~ 2”
Surface Treatment: Natural; Nickel Plated; Chrome Plated
Certificate: ISO 9001, ISO14001,CE
Warranty time: 5 years
Offer sample: Available
MOQ: 1000 pcs
FOB Price(Ningbo): USD 0.35 - USD 4.55
Delivery time: in 20 days after down payment
Port: Ningbo Port or Shanghai Port
Packing: Plastic bag+Inner box+ Export Carton+4 Packing Belts
A full port or more commonly known full bore ball valve has an over-sized ball so that the hole in the ball is the same size as the pipeline resulting in lower friction loss. Flow is unrestricted but the valve is larger and more expensive so this is only used where free flow is required, for example in pipelines which require pigging.
In Reduced port (more commonly known as reduced bore) ball valves, flow through the valve is one pipe size smaller than the valve's pipe size resulting in flow area being smaller than pipe. As the flow discharge remains constant and is equal to area of flow (A) times velocity (V), the velocity increases with reduced area of flow.
A V port ball valve has either a 'v' shaped ball or a 'v' shaped seat. This allows for linear and even equal percentage flow characteristics. When the valve is in the closed position and opening is commenced the small end of the 'v' is opened first allowing stable flow control during this stage. This type of design requires a generally more robust construction due to higher velocities of the fluids, which might damage a standard valve. These can be referred to as a type of control valve but are typically not as accurate as a balancing valve, needle valve, globe valve, or pressure regulating valve.