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Lianggong automatic control valve series products - solve problems for global fluid control

Date:2022-03-23   Views:189


Lianggong automatic control valve series products - solve problems for global fluid control


Air-to-close diaphragm spring control valve

The internal structure of the air-closed membrane spring type regulating valve has a single-layer cage and a multi-layer cage, which can be applied to the adjustment of different pressure differences. The valve core has a balance hole, and the sleeve and valve core can be designed according to different working conditions. With different sealing structures, the sealing surface is surfacing hard alloy, which has good sealing performance, stable adjustment performance, simple structure and convenient maintenance.


Air-to-Open Membrane Spring Control Valve
The internal structure of the air-opening diaphragm spring control valve has a single-layer cage and a multi-layer cage, which can be applied to the adjustment of different pressure differences. The valve core has a balance hole, and the sleeve and valve core can be designed according to different working conditions. With different sealing structures, the sealing surface is welded with cemented carbide, which has good sealing performance, stable adjustment performance, simple structure and convenient maintenance. We can weld pipes of different sizes and materials according to customer requirements.
The multi-stage pressure-reducing conical structure design is adopted, the valve disc and the valve stem are integrally designed, and the adjustability is stable. The CV value is calculated according to the specific parameters and conditions, and different valve cores are designed to meet the requirements of customers.

Design Features:
It is a conical structure valve core, the flow characteristics are equal percentage, linear, etc., the design structure is compact, easy to maintain, multi-stage parallel ring groove pressure reduction, good sealing, hard alloy surfacing on the sealing surface, long service life.
The internal structure of the control valve adopts the overall design of the valve core and the valve stem, and the adjustment performance is stable. The sealing surface is sealed with a conical surface, and the sealing performance is good.



Electric high temperature regulating valve
The inner structure of the electric high temperature control valve has a single-layer cage and a multi-layer cage, which can be applied to the adjustment of different pressure differences. The valve core has a balance hole, and the sleeve and the valve core can be designed with different sealing structures according to different working conditions. , The sealing surface is surfacing with cemented carbide, which has good sealing performance, stable adjustment performance, simple structure and convenient maintenance. It can weld pipes of different sizes and materials according to customer requirements.



Integral forged electric high pressure regulating valve
The internal structure of the integral forged electric high-pressure regulating valve The sleeve has a single-layer cage and a multi-layer cage, which can be applied to the adjustment of different pressure differences. The valve core has a balance hole, and the sleeve and the valve core can be designed differently according to different working conditions. Sealing structure, hard alloy surfacing on the sealing surface, good sealing, stable adjustment performance, simple structure, convenient maintenance, and pipes of different sizes and materials can be welded according to customer requirements.


Sleeve regulating valve
The sleeve control valve is a pressure-balanced control valve. There is a sealing ring between the valve core and the sleeve to reduce leakage. Its advantages are small pressure drop loss, large flow rate and high flow characteristic accuracy. This series of regulating valves includes single-sleeve regulating valve and multi-sleeve regulating valve.
Series Features Sleeve guide, good stability, adapt to frequent adjustment system, adapt to high pressure difference working environment, porous arrangement can reduce noise.


Excellent manufacturing performance
1. The seals are selected from internationally renowned brands with good stability.
2. The structure of the valve trim is designed as a quick-release type, which is convenient for maintenance and can be easily and quickly disassembled and replaced.
3. The design and processing of the gap between the valve stem and the cage is reasonable, wear-resistant, anti-chafing and locking.
4. The valve seat and valve core are surfacing with high-quality cemented carbide, the hardness can reach HRC70, and it has strict
The closing characteristics, anti-scour, long life.
5. The valve body assembly adopts a self-internal pressure sealing structure, the greater the pressure difference, the better the sealing performance. valve with
The actuator adopts a flexible connection, which not only ensures the tight closing of the valve core, but also protects the electrical
The actuator will not be damaged by overloading.
6. Linear, equal percentage characteristics or flow characteristics required by customers can be provided;
7. Self-cleaning and anti-blocking functions;
8. It can be repaired online;
9. The cage is welded by multi-layer discs; the cage with separable discs can also be provided.
10. Multi-stage labyrinth sleeve can be assembled into existing various cage valves


Our customized solutions
1. Based on different working conditions, the design of each layer of the labyrinth component is different, and the flow curve is a modified equal percentage curve or other, and the adjustment is more stable.
2. Based on the working condition of compressible medium, we choose the open flow type; based on the working condition of incompressible medium, we choose the flow closed type.
3. Diversified design schemes---we make high-order labyrinth/low-order labyrinth/axial labyrinth/radial labyrinth/pilot labyrinth/pseudo labyrinth/shroud, etc., according to different working conditions.













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