Installation
The valve can be installed in horizontal or vertical piping with regards to
flow direction.
Operation
The valve is operated by handwheel, chainwheel or from a stand.
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Application
Shut-off valve for water, hazardous non-
aggressive liquids and gases for service
pressures and temperatures:
The valve is not suitable for flow regulation
Technical description
The valve is yoke-type. Closing disc fits into
sealing surface welded in the valve body. The
stem is sealed with gland packing in the yoke.
In DN 15-100 valves the flow direction is
from under the disc. For DN 125-200 valves,
the flow direction is from above the disc and
internal bypass reduces pressure difference
before and after the closing element. (pressure
drop).
Connecting and face-to-face dimensions
Flange connecting dimensions as per ÈSN 13
1060, DIN 2501.
Face-to-face dimensions as per
ÈSN EN 558-1 part 1, DIN 3202 F1.
Flange faces as per ÈSN 13 1061, DIN 2526.
Material
Body, yoke carbon steel (GS-C25)
Disc up to DN 100 stainless steel (13 Cr)
Disc from DN 125 carbon steel with 13 Cr
overlay
Stem, lantern ring stainless steel
Gland packing asbestos-free graphite
Testing
The valve is tested as per ÈSN 13 3060, part 2,
DIN 3230-3. |