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Gate Valve
Main application;
Transport and distribution plants
Cold and hot industrial
Saturated vapours
Petroleum products
On condition that the suitability
regarding the corrosion, erosion and safety in work related to the materials
used for these valves to be assured.
Design dimensional and
characteristic
TN _non rising stem (NRS)
TA rising stem (OS&Y)
Overall length s: ISO; BS;
ANSI; DIN
Connecting flanges: ISO; ANSI;
DIN
Max flow speed liquid .2.5 m/s for PN 2.5; 4; 6
4m/s for PN 10;
5m/s for PN 16;
WORGING TEMPRETURE
T ax /T min 80ºC/-10 – for NBR type rubber
120º C/ -10 for EBDM type rubber
150 C /-10 º for asbestos free gaskets
Operation
;
AM- manually
AE – electrically
Mounting : flow direction – indifferent
Mounting position – indifferent
Factory test;
test pressures; leakage
Hydraulic test in conformity with ISO 5208
Test in conformity with MSS- SP-70
Test pressure - shell ×PN bar
Seat 1.1× PN bar
Max. Allowed leakage at seat test in conformity with ISO 5208
In conformity with MSS –SP -70
The modern gate valve
, manufactured in accordance with the
standards/Resilient
gate valve are designed
with fully vulcanized rubber wedge –internally and externally .with this design
no iron parts are exposed to medium and the excellent rubber vulcanization
prevents creeping corrosion underneath the rubber
The high quality is characterized by
Very low deformation ensuring optimum
sealing
High impact resistance preventing
corrosion
Low friction ensuring low closing
torque
EBDM rubber for water supply . NBR
rubber for gas supply
Resilient seated gate valves have a
full bore with same nominal diameter as pipeline .
The full bore ensures Minimum pressure
loss , as the valve does not cause any reduction in the flow path .
Other great advantages are that the
full bore allows drilling and facilitates pipe pigging to ensure high quality
potable water .
Resilient seated gate valves offers 4
different stem sealing systems according to the standard used worldwide .
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