Plug valves are designed for applications throughout water and wastewater treatment
VATAC ECCENTRIC PLUG VALVES
VALVE BODY: The Vatac Eccentric Plug Valve’s standard
body and cover materials are in cast iron ASTM A126 Class B or Ductile Iron
A536 Gr. B,. Flanged valves are in full compliance with ANSI B16.1 Class 125,
Mechanical Joint Ends to AWWA C111/ANSI 21.11. Grooved End valves to AWWA C606.
VALVE PLUG: The valve plug is cast
iron, and the portion of the plug in the valve body cavity is coated with
Buna-N rubber using an injection molding process. This allows for the entire
surface to be covered, not just the plug face. With this injection molding
process you do not have to worry about the rubber disbonding from the iron.
WELDED NICKEL SEAT: Vatac welds a corrosion resistant nickel seat to a
raised area in the body. The nickel covers the entire seat surface so that
there is no possibility of corrosion that could damage the plug face
O-RING BONNET SEAL: The seal between the body and the bonnet is an o-ring,
allowing for easier maintenance.
Because o-rings seal is more better than flat gaskets, the number of bonnet
bolts is reduced.
PACKING SEAL: The packing seal is held in place with an adjustable gland
follower to provide many years of reliable service.
BOLTED BONNET: The valve bonnets are
fully sealed and securely bolted to the valve body for easy removal of the plug
should maintenance be required.
SHAFT BEARING: SS316 shaft bearings
are used in the upper and lower trunnions.
These bearings are permanently lubricated for ease of operation even after long
periods of inactivity.
Vatac quarter-turn valves are equipped with a position indicator marked at 10
degree increments and an open position memory stop that can be used for
balancing applications. Valves 3" through 8" are available with lever
actuators. Geared actuators are
recommended on 6" and larger valves. It is also recommended that valves
installed in pipelines with high velocity or where water hammer conditions can
be caused by sudden valve shut-off that geared actuators be installed. Lever
actuators can only be used for pressure ratings of 100 psi maximum and 25 psi in
the reverse flow condition. Vatac Eccentric Plug valves are available in sizes
ranging from 3" - 24".
free to contact with Vatac Sales Team or your local Representatives for other
optional special requirements