Application
Regulating valve for air and other non-
aggressive gases for working pressures and
temperatures:
The throttle valve cannot be used as a shut-off valve.
Technical description
Regulating valve is a flangeless valve. The
throttling disc rotates on a central shaft placed in the sliding
bushings. When the valve is closed
there is a gap between the disc and body. The angle of the disc turn is
90°. The position
indicator shows the disc position. The disc can be secured in position by means of a wing nut
(only for throttle valves with operating lever).
Connection
Basic connecting dimensions are given in the
table.
Materials
Body, disc carbon steel (GS-C25)
Sleeve ductile iron (GGG-40)
Shaft, packing nut carbon steel
Shaft packing asbestos-free
Testing
Swing check valve is tested as per DIN 3230,
(ČSN 133060, part 2). Installation
The throttle valve can be installed into
horizontal or vertical pipeline. It is necessary to state in a purchase order the intention to
install the valve into vertical pipeline. It is necessary to check the actuators function from time to time if
the actuators are used. Control
Valves can be controlled either by means of
lever or electric servo-motor (from DN 150 up to DN 600). If the valves of the size from DN 50 up
to DN 125 are intended to be controlled by el. servo-motor such actuator must be placed out of
the valve.
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