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Application
Shut-off valve for water and steam, on special
request also for other non-aggressive liquids
for service pressures and temperatures:
The gate is not suitable for flow regulation
Technical description
The bonnet gate valve has a rotating non-
rising stem with its thread inside the valve
chamber. The body and wedge have brass or
stainless steel sealing rings pressed into them.
Stem is sealed with gland packing or O-ring in
a bonnet.
Connecting and face-to-face dimensions
Face-to-face dimension per DIN 3202 F4, F5.
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)
Body sealing surfaces brass, 13 Cr
Wedge sealing surfaces brass, 13 Cr
Gland packing O-ring (up to 120°C)
asbestos-free fibre (up to 200°C)
Testing
The gate valve is tested per DIN 3230.
Installation
The gate valve can be installed in horizontal
or vertical piping.
Operation
The gate valve can be operated by handwheeel
(ON 13 3110), chainwheel (ON 13 3130) or
from a stand (ON 13 3140 and ON 31 3142).
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