Under expansion type discharge valve product use:HG5-89-2 lower
expansion type discharge valve is mainly used for the bottom
discharge of reactors, storage tanks and other containers, by means
of the valve bottom flange welded to the bottom of the storage tank
and other containers, so eliminate the residual phenomenon of the
medium often in the bottom of the container.The performance and
advantages of the underspread discharge valve products:(1)
Corrosion resistance☆ The use of media such as water, acetone,
alcohol, ammonia, barium carbonate, benzene (WCB material finally
low use temperature -29ºC, the highest temperature of 425ºC.)☆ The
use of medium such as particles, oil, pulp, carbon dioxide
(stainless steel minimum use temperature of -100ºC, maximum use
temperature of 232ºC)☆ It is strictly prohibited to use
fluorine-containing ionic liquid (such as HF, etc.) and can not use
strong alkali and phosphoric acid (temperature >150ºC,
concentration >30%).(2), the general working temperature of
stainless steel: ≤150ºC(3), HG5-89-2 downward expansion type
discharge valve pressure range: 0.6~2.5Mpa(4), diameter range:
25~250mmThe working principle of the underspread discharge
valve:The handwheel of HG5-89-2 underspread discharge valve turns
to the right to close and to the left to open, which is mainly used
for the bottom discharge of reactors, storage tanks and other
containers. By means of the bottom flange of the valve, it is
welded to the bottom of the storage tanks and other containers, so
as to eliminate the residual phenomenon of the medium often at the
bottom of the container. Discharge valve according to the needs of
the actual situation, the bottom is designed for the flat bottom,
the body is Y, and provides the valve flap of the descending
working mode. The valve body cavity is equipped with erosion
resistance, corrosion resistance sealing ring, in the opening of
the valve moment, can protect the valve body from being washed by
the medium, corrosion, and special treatment of the sealing ring,
so that the surface hardness reaches HRC56~62, with high wear
resistance, corrosion resistance function. Valve disc seal
according to the need of the cover are stacked with cemented
carbide welding, sealing surface using line seal, to ensure the
reliability of sealing, and can prevent scarring. At the same time,
the design of short stroke valve disc is adopted. It is widely used
in chemical, petroleum, metallurgy, pharmaceutical, pesticide, dye,
food processing and other industries. Various modes of operation,
for example, manual, pneumatic (spring return type, double acting
type, with and without hand wheel), electric, hydraulic, gear,
etc.The main dimensions of the underspread discharge
valve (flange size according to
JB79PN1.6Mpa) Caliber DN
D D3 H D0 D D3
H D02511511527016011513522516032135135285160135145300160401451453551801451603401805016016037018016018034518065180180465220180195425220801951954802501952154452501002152155902802152605352801252452457303002452805853001502802807753202803356653202003353359003603354058003602504054051035500405460945500
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