V Type Ball Valves:
V notch ball valve is quarter turn control valve mainly recommended for
throttle service, but it is also applicable for switch valve. V type ball is in
V-notch design with strong custting force and self-cleanness, especially suitable
for control of medium containing fibre and tiny solids. Therefore, it is widely
sued in the self-control systems in industries such as paper, petrochemistry,
petroleum, checmial fibre, power, metallurgy, pharmacy, environmental protection,
Spring Loaded Valve Seat:
Pre-tightened loaded seat keeps valve seat and ball in constant close
contact, therefore, good sealing performance is assured even at a long
differential pressure with greatly extended service life. PTFE soft seat and
metal seat are available for different media and temperature.
One-pcs valve body prevents potential leakage patch caused by flange
Ball and Automatic Sliding Bearings:
Specially designed V-notch ball provides equal percentage flow
characteristic with high prescision control performance as well as strong
cutting force and self-cleaning function. Upper and lower shaft are fixed by
double bearings with good stability. Bearing s are in composite material, and
loaded surfaces are sintered with superior abrasion resistant and
self-lubricating function, which prevents valve seizing up during service life.
Connection Between Shaft and Ball
Ball and shaft are connected by spline, which keeps good neutral position
with large load bearing capacity and long service life. It also eliminates the
room between the stem and ball, and the dead band phenomenon is prevented with
enhanced control precision.
For customers’ flow applications, low capacity vales are available with
DN25 for precise control. Non-standard flanges are needed for connection with
DN20 and DN15 pipe.