Application
Shut-off valve for aggressive and easy
hardening media. The gate valve is not
suitable for flow regulation.
Technical description
The yoke gate valve has a rising non-rotating
stem with its thread outside the valve
chamber. Stem nut is turned to raise or lower
the stem and solid wedge. Body and wedge
have stainless steel sealing surfaces.
Connecting and face-to-face dimensions
Flange connection dimensions as per
ČSN 131060 and ČSN 131061. Face-to-face
dimensions as per ČSN EN 558. Basic
face-to-face and connecting dimensions are
shown in the table.
Material
Body, bonnet, wedge 42 2942.4
Stem stainless steel (13 Cr)
Sealing surfaces base material
Gland packing asbestos-free graphite
Heating jacket carbon steel
Testing
The gate valve is tested per ČSN 13 3060,
part 2 (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 the servomotor is installed with
vertical axis upwards, 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 by handwheel,
chainwheel, el. actuator or from a stand.
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