⎝⎛韦德足球⎞⎠

Control valve

Huijin Valve: a professional manufacturer of regulating valves.

Contact Us
  • E-mail: sale@w8down.com
  • Sales Hotline: 0577-6731 8881/8882
  • Fax: 0577-67318887
  • Technical Service: 0577-6731 8885/8998
  • Headquarters Address: No. 8 Industrial Road, Dajia Industrial Zone, Oubei Town, Yongjia County, Wenzhou City, Zhejiang Province

Regulator Valve Article

Research and Analysis of Flow Regulating Valve

2015-05-21 | 12540

In modern automatic control, the regulating valve plays a very important role. The correct distribution and control of flowing liquids, gases or solid powders requires a regulating valve. The low-pressure pneumatic conveying device uses a blower as the power source. The fan is at the front of the feeding device. The powder in the silo is continuously fed to the high level by the feeding device ...
Design and analysis of temperature and pressure reducing valve

2015-05-21 | 12711

The temperature reducing pressure reducing valve is an automatic regulating valve that can reduce temperature and pressure in the steam system, and has regulating performance. This paper analyzes the key technologies in the design of the temperature reducing and reducing pressure regulating valve, and proposes the optimal design scheme and material selection of the structure of each part of the valve. At present, China has not targeted ...
Condensing pressure regulating valve

2015-04-17 | 12608

Brief description: The condensing pressure regulating valve is actually a water volume regulating valve, which is often used in the cooling device of a water-cooled condenser. It is installed at the water inlet end of the condenser. The bypass holes are connected. Cautions 1. When the inlet water temperature of the condenser is too high or the inlet water volume is insufficient, the refrigeration pressure ...
Strength test and tightness test of shut-off valve

2015-04-15 | 12580

How does the pneumatic shut-off valve perform strength and tightness tests? Answer: The strength test and tightness test of the pneumatic shut-off valve are performed on the valve test bench as shown in Figure 5-13. During the test, the pressure shall be gradually increased to the test pressure, and the pressure shall remain unchanged for a specified duration, and no leakage is acceptable. (1) Intensity ...
About the main features of Huijin high pressure regulating valve

2015-04-15 | 12699

Huijin high pressure regulating valve is a hydraulic automatic switching valve for single-cylinder hydraulic transmission. It includes a valve body, an oil inlet, and two left and right oil outlets (2L, 2R). It is characterized by: 1. There is a slide core that can move left and right in the center of the valve body, corresponding to the oil The inside of the valve body at the port position is symmetrical left and right ...
Eight Ways to Solve Vibration Failures of Control Valves

2014-06-17 | 12162

1. Increasing stiffness method For vibration and slight vibration, the stiffness can be increased to eliminate or weaken. For example, it is feasible to choose a spring with large stiffness and use a piston actuator. 2. Increasing the damping method Increasing the damping means increasing the friction against vibration. For example, the valve plug of the sleeve valve can be sealed with "O" ring ...
Introduction of eccentric rotary valve

2014-05-23 | 12216

[Introduction] The common eccentric rotary valve body consists of a long-neck wafer valve body, a bow-shaped interceptor ball or a hemispherical crown-ball valve disc, a valve seat, a retainer, a valve stem (main and auxiliary shaft), a guide sleeve and a packing Etc composition. There is a single type of part, and there is no standardization, serialization, modularity between different specifications, just a simple part group ...
Analysis on the superior performance of ZZYP steam self-operated pressure regulating valve in heating

2014-05-15 | 12149

ZZYP steam type self-operated pressure regulating valve is an energy-saving control device that does not require additional driving energy, and relies on the pressure of the medium being adjusted as the power source and the pressure change of the medium, and performs automatic adjustment according to predetermined set values. It integrates detection, control, and execution of many functions in one valve, and becomes an independent instrument control ...
The increase in energy consumption caused by the inappropriate use of control valves should be paid attention to

2014-05-10 | 12141

The sealing performance of a valve refers to the ability of each sealing part of the valve to prevent medium leakage. It is the most important technical performance index of a regulating valve. There are three sealing positions of the valve: the contact between the opening and closing member and the two sealing surfaces of the valve seat; the combination of the packing with the stem and the stuffing box; The previous one ...
The flow characteristics of the two-way control valve are obtained under the condition that the pressure difference between the front and rear of the control valve is constant.

2014-05-9 | 12195

In the variable flow system, as the indoor load changes, the opening of the two-way valve is adjusted by the thermostatic controller to adjust the water flow through the fan coil to meet the requirements of the indoor temperature. A key to variable flow system design. Two-way valve is based on the working characteristics and adjustable ratio of the regulating valve ...
Hydraulic balancing valve has cut-off and throttling functions

2014-05-9 | 12152

In recent years, with the increasing demand for energy from society, fossil fuels, which are the main source of energy, have rapidly decreased. Therefore, energy conservation has become the focus of widespread social concern. Urban central heating is an important way to save energy, protect the environment, and improve people's living standards and quality of life.
How to avoid the rotation of the regulating valve

2014-05-9 | 12152

Regarding the power source of the actuator, the actuator can be divided into electric actuator, pneumatic actuator and hydraulic actuator. Pneumatic actuators have simple structure, low price, convenient maintenance, fire protection and explosion protection, but large lag and are not suitable for remote transmission. Hydraulic actuators have large thrust, but are large, expensive, and not used much; electric actuators ...
Pneumatic film boiler feed water regulating valve

2014-05-9 | 12024

Xue Liangliang said: To open the gap in the market, you only need to change the time to change the refrigeration compressor of the air conditioning valve of the car. In the process of stopping the research and development of product technical means, he thought that in order to innovate new automotive air-conditioning compressors, technical means must be passed. To this end, he stopped numerous demands and fulfillment, and targeted ...
The control part of the electric control valve affects the internal leakage of the valve

2014-05-9 | 11971

The traditional control methods of electric control valves are mechanical control methods such as valve pneumatic control valve limit switches, over-torque switches, etc. Because these control elements are affected by environmental temperature, pressure, and humidity, the valve positioning is incorrect, spring fatigue, and thermal expansion Objective factors such as uneven coefficients cause internal leakage of electric control valves ...
Calculation and definition of flow capacity of electric control valve

2014-05-8 | 11964

The definition of the rated flow coefficient of the regulating valve is: under specified conditions, that is, the pressure difference between the two ends of the valve is 10Pa, the density of the fluid is 1g / ㎝³, and the flow rate of m³ or t / h flowing through the regulating valve during the rated stroke The flow capacity Kv of the regulating valve is an important parameter of the regulating valve, it reflects the ability of fluid to pass through the electric regulating valve, ...
Failure Analysis of ZDLJP-B Type Electric Single-seat Control Valve

2014-05-7 | 11978

ZDLJP-B type electric electric insulation jacket fine small single seat regulating valve is equipped with 3610L electric actuator and small precision single seat regulating valve mechanism. With feeding function, the valve can be controlled by input signal and power supply. The regulating mechanism adopts a small and compact valve body. The valve body and the upper valve cover adopt a thermal insulation device for being adjusted ...
How to use high-pressure differential electric regulating valve

2014-05-7 | 12018

When using a high-pressure differential electric control valve, care should be taken to avoid the electric control valve working at a small opening. If the control valve is too large, it will work with a small opening, the throttle gap is small, and the erosion is serious. An appropriate selection of the valve diameter, the opening of the work will increase, the throttle gap will be large, and the erosion will be weakened, which will increase the service life. For easily eroded parts, valve core, valve seat ...
Why does the valve undergo a strength test before installation?

2014-05-7 | 11952

For valves installed in ceilings and tube wells, valves in water supply systems that require strict media flow, valves with larger diameters that transport flammable and explosive media, etc. should be subjected to individual strength tests on the valves. At present, there are many domestic valve manufacturers, and the product quality is uneven, often after the water passes ...
星力捕鱼 七乐彩 龙博线上娱乐 真人游戏平台注册