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Application
Shut-off valve for water, steam, air, oils, gases
and other non-aggressive fluids. The graph
shows maximum working overpressures and
temperatures. The valve is not suitable for
flow regulation.
Technical description
The ball valve is a two-way valve, which
closing element is a floating ball sealed by
two seats. The valve has "OPEN - CLOSE"
position stops. The flow is shut off by turning
the lever through 90° to the right, or by electric
actuator.
Connecting and end-to-end dimensions
Flange connecting dimensions as per
ČSN 13 1060, DIN 2501 and ČSN 13 1061,
DIN 2526.
Basic end-to-end dimensions are given in the
table below.
Material
Body grey cast iron (42 2420, GG-20)
Ball, trunnion stainless steel (13 Cr)
Seat, sealing PTFE
Trunnion sealing "O" ring (rubber)
Testing
The valve is tested as per ČSN 13 3060, part 2,
DIN 3230.
Installation
The valve can be installed into vertical or
horizontal piping.
Operation
The valve can be operated by a one-arm lever
or by a two-arm lever (for DN 125 and
150 valves) or by a single-turn electric
servomotor.
On customer´s request the valve can be
operated also by pneumatic actuator (single-
or double-acting) with control pressure
of 0,6 MPa.
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