Highlight:Cast steel steam pressure reducing valve
Product introduction:
Y43H series pressure reducing valve belongs to the pilot piston
type pressure reducing valve which include main valve and guide
valve two parts.The main valve mainly consists of valve seat, main
valve disc, piston, spring and other parts.Guide valve is mainly
composed of seat, disc, diaphragm, spring, regulating spring and
other parts.The outlet pressure is set by adjusting the spring
pressure, and the diaphragm sensor is used to change the outlet
pressure. The piston is driven by the opening and closing of the
guide valve to adjust the over-flow area of the throttle part of
the main valve, so as to realize the function of reducing pressure
and stabilizing pressure.The main products are mainly used for
steam pipeline, play a pressure reducing and stabilizing role.
Product technical parameters:
| Performance specification table |
| Nominal pressure | 300lb |
Test pressure standard | Strength test (water) | 7.7 |
MPa |
| Sealing test (water) | 5.62 |
| Sealing test (air) | 0.6 |
Maximum working temperature |
300 | ℃ |
| Medium applicable: Water, steam, oil etc non-corrosive gas or
liquids. |
| Remark: valve body test didn’t include diaphragm. |
Product features:
1. Stable and Controllable Initial State: The regulating spring is
in an uncompressed state when leaving the factory, and both the
main valve disc
and auxiliary valve disc remain closed. This prevents accidental
opening during transportation or idle periods, enhancing
operational safety.
2. Convenient and Intuitive Adjustment Method: By rotating the
adjusting screw clockwise, the spring can be compressed, driving
the diaphragm to
move downward and opening the auxiliary valve disc. This achieves
mechanical linkage control of the medium flow path, making
operation simple
and easy to master.
3. Automatic Pressure Balance Response: When the pressure behind
the valve exceeds the set value, the diaphragm is pushed upward by
the
pressure to compress the regulating spring. The auxiliary valve
disc closes slightly to reduce the medium flowing into the upper
part of the piston,
while the main valve disc narrows the gap under the action of
spring force, reducing flow and allowing the pressure to drop back
to a balanced
state. Conversely, if the pressure behind the valve is too low, the
reverse action occurs (gap enlarges, flow increases), automatically
raising the
pressure to achieve dynamic pressure stability.
4. Reliable Mechanical Linkage Structure: Pressure regulation is
accomplished through mechanical linkage of the spring, diaphragm,
piston, and
valve discs, with no complex electronic components. It is adaptable
to various working conditions, featuring low operational failure
rates and strong
stability.
Our Advantages:
