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Prefect:
The
silent check valve is applied on lift pipe or fluid pipe with
pressure. The valve, with restoring force, will be closed at
suitable speed when pump is shut down to separate the inertia fluid
(positive pressure) from the back flow (negative pressure) caused by
power turned off and ,hence, prevent the noise caused by the impact
of positive and negative pressure. The silent check valve plays
an important role on piping , especially applied on the outlet of
the pump. The silent check valve applied on the outlet of the
pump should be selected carefully, and it must be able to resist the
highest pressure, the largest water hammer effect and the biggest
fluid impact. If the silent check valve is not good enough, when
silent check valve is damaged, it will cause the fluid flowing back
and losing pressure or, more serious, the damaged parts will fall on
the blades and damage the pump seriously and, hence, lost more
money. To avoid the defect mentioned above, our company
manufacture a more practicable and more economical model, called "
FULL OPEN STYLE SILENT CHECK VALVE". |
Features: The design of the valve is full
flow lift type and valve won't be impacted
by the water flow. Hence, the valve
can work for a long time and have huge flow rate.
The
design of plug is hang type and automatically locating. It can adjust the close position of the plug no
matter high or low pressure. The design
of sealing is up-side-down of "V" and it will be suitable to the
occasions of high and/or low pressure and
the tightness of the valve will be
the best. The design of plug is semi-round and can
be able to
resist higher pressure and can be lasted for much longer. |
|
Outlet diameter |
Connection type |
L |
A |
2" |
Flange |
183 |
122 |
2.5" |
Flange |
200 |
132 |
3" |
Flange |
210 |
147 |
4" |
Flange |
220 |
160 |
5" |
Flange |
260 |
180 |
6" |
Flange |
280 |
200 |
8" |
Flange |
370 |
-------- |
10" |
Flange |
450 |
-------- |
12" |
Flange |
520 |
-------- | |
Item |
material |
Body |
Cast iron |
Stainless steel |
Bypass valve
set |
Brass |
-------- |
Plug |
Brass |
Stainless steel |
seat |
Brass |
Stainless steel |
Locating bolt |
Brass |
-------- |
Cantilever |
Brass |
Stainless steel |
Spring |
Stainless steel |
Stainless steel |
Pin |
Brass |
Stainless steel |
Sealing retainer |
Brass |
Stainless steel |
sealing |
NBR |
-------- | Valve material: Cast iron, Stainless steel Test pressure for
valve body : cast iron : 21kgf/cm2 stainless steel :
35kgf/cm2 Applied temperature: -15¢J ~ 80¢J Specification : JIS
10K The bypass valve set
won't be attached if the diameter
is lager than 8 inches. Special order is needed for special fluid, material or particular dimension. The Z-Tide silent check valve is suitable to both horizontal and vertical
type. |
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