Description
1.Fire – safe
All size and pressure valves
have been successfully fire – safe tested according to the relevant
API and BS specifications.
2.Antistatic
Electrical continuity for all valve components, prevent static
electricity from accumulating.
3.Double block & bleed
Trunnion mounted ball valve
generally use the seat sealing before ball construction. The two
seats in the trunnion mounted ball valve can close the inlet and
outlet respectively to implement the double block. When the valve
is closed, even the both ends have pressure, the cavity and the
bore can be blocked. The rest medium in the cavity can be
discharged all to the drain plug.
4.Automatically drain plug on body
When the medium in the
cavity has physical or chemical changes related to the rising of
temperature and results in the abnormal increase of cavity
pressure. The construction design can push the seat depending on
itself to release the pressure to make sure the safety of the
valve.
5.Optional: double piston effect seat
6.Full bore
Valves have he same bore as the inner bore of the pipeline,
convenient for PIG service.
7.Emergency sealing and lubricating sealant
When the seat sealing ring
is damaged by accident, we can inject the sealant via sealant
emergency injection fittings to avoid the leakage by seat sealing
ring.
8.The top flange with yoke and mounting plate is
convenient to install the gear, electric and
pneumatic
actuator.
9.Extended stem for underground
For
the valves to be installed underground, the stem can be extended
including all the relevant pipes, drain, vent and emergency sealant
lines to be attached to the stem extension at eh need of the
installation or operation.
*0. Extended stem for low
temperature
To avoid the valve’s
packing to be damaged in the low temperature and resulted in bad
sealing, the stem can be extended at the demands.
