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Application
Shut-off valve for water, steam, air, oils and
other non-aggressive liquids and gases. Gate
valve is not suitable for flow regulation. For
service pressures and temperatures:
Technical description
Bonnet gate valve with a rotary non-rising
stem with its thread inside valve chamber. The
body and wedge have brass sealing rings.
Stem is sealed with gland packing in a bonnet.
Connecting and face-to-face dimensions
Face-to-face dimension per ČSN EN 558,
DIN 3202 F4 (see tables). Flange connection
dimensions as per DIN 2501. Flange faces as
per DIN 2526, Form C. Basic face-to-face and
connecting dimensions are shown in the table.
Material
Body, bonnet, wedge grey cast iron (GG 25)
Stem stainless steel (13 Cr)
Sealing surfaces brass
Gland packing asbestos-free fibre
Testing
The gate valve is tested per DIN 3230.
Installation
The gate valve can be installed in horizontal
or vertical piping. For electrically actuated
valves, the axis of electric motor must remain
horizontal. If this is not the case, amount of oil
fill must be increased. If the valve is installed
horizontally, the actuator must be supported.
Operation
The gate valve can be operated manually or by
electric servomotor.
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