Industry news
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Why does the valve leak? What do we need to do if the valve leaks?（II）
3. Leakage of sealing surface The reason: (1) Sealing surface grinding uneven, can not form a close line; (2) The top center of the connection between the valve stem and the closing part is suspended, or worn; (3) The valve stem is bent or improperly assembled,so that the closing parts are skewed...Read more -
Why does the valve leak? What do we need to do if the valve leaks?（I）
Valves play an important role in various industrial fields.In the process of using the valve, sometimes there will be leakage problems, which will not only cause a waste of energy and resources, but also may cause harm to human health and the environment. Therefore,understanding the causes of...Read more -
How to pressure test different valves?（II）
3. Pressure reducing valve pressure test method ① The strength test of the pressure reducing valve is generally assembled after a single test, and it can also be assembled after the test. Duration of strength test: 1min with DN<50mm; DN65 ~ 150mm longer than 2min; If the DN is greater th...Read more -
Difference between double eccentric butterfly valve and triple eccentric butterfly valve
Double eccentric butterfly valve is that the valve stem axis deviates from both the center of the butterfly plate and the center of the body. On the basis of double eccentricity, the sealing pair of triple eccentric butterfly valve is changed into inclined cone. Structure comparison: Both double ...Read more -
Merry Christmas
Merry Christmas to all our clients! May the glow of Christmas candle fill your heart with peace and pleasure and make your New Year bright. Have a love filled Christmas and New Year!Read more -
Corrosion environment and factors affecting corrosion of sluice gate
Steel structure sluice gate is an important component for controlling water level in hydraulic structures such as hydropower station, reservoir, sluice and ship lock. It should be submerged underwater for a long time, with frequent alternation of dry and wet during opening and closing, and be was...Read more -
Correct use of butterfly valve
Butterfly valves are suitable for flow regulation. Since the pressure loss of butterfly valve in the pipeline is relatively large, which is about three times that of gate valve, when selecting butterfly valve, the influence of pressure loss on pipeline system should be fully considered, and the f...Read more -
Valve NDT
Damage detection overview 1. NDT refers to a testing method for materials or workpieces that does not damage or affect their future performance or use. 2. NDT can find defects in the interior and surface of materials or workpieces, measure the geometric characteristics and dimensions of workpiece...Read more -
Valve selection skills
1、 Key points of valve selection A. Specify the purpose of the valve in the equipment or device Determine the working conditions of the valve: the nature of the applicable medium, working pressure, working temperature, operation etc. B. Correctly choose the valve type The correct selection of ...Read more -
knowledge of ventilation butterfly valve
As opening , closing and regulating device of ventilation and dust removal pipeline, ventilation butterfly valve is suitable for ventilation, dust removal and environmental protection systems in metallurgy, mining, cement, chemical industry and power generation. The ventilation butterfly v...Read more -
Characteristics of electric wear-resistant dust and gas butterfly valve
Electric anti friction dust gas butterfly valve is a butterfly valve product that can be used in a variety of applications such as powder and granular materials. It is used for flow regulation and closure of dusty gas, gas pipeline, ventilation and purification device, flue gas pipeline, etc. One...Read more -
Structure principle of pneumatic inclined plate dust air butterfly valve
The traditional dust gas butterfly valve does not adopt the inclined installation mode of disc plate, which leads to dust accumulation, increases the valve opening and closing resistance, and even affects the normal opening and closing; In addition, due to the traditional dust gas butterfly valve...Read more -
Correct installation method of wafer butterfly valve
The wafer butterfly valve is one of the most common types of valves in industrial pipelines. The structure of the wafer butterfly valve is relatively small. Just put the butterfly valve in the middle of the flanges at both ends of the pipeline, and use the stud bolt to pass through the pipeline f...Read more -
How to maintain the valve during operation
1. Keep the valve clean Keep the external and moving parts of the valve clean, and maintain the integrity of the valve paint. The surface layer of the valve, the trapezoidal thread on the stem and stem nut, the sliding part of the stem nut and bracket and its transmission gear, worm and other com...Read more -
Installation of penstock gate
1. Installation of Penstock gate: (1)For the steel gate installed on the outside of the hole, the gate slot is generally welded with the embedded steel plate around the hole of the pool wall to ensure that the gate slot coincides with the plumb line with a deviation of less than 1 / 500. (2) For ...Read more -
Goggle valve / line blind valve ,THT Jinbin valve customized products
The goggle valve / line blind valve can be equipped with driving device according to the user’s demand, which can be divided into hydraulic, pneumatic, electric, manual transmission modes, and can be automatically controlled by DCS in the control room. Goggle valve / line blind valve, also ...Read more -
Installation procedure manual of electric butterfly valve
Installation procedure manual of electric butterfly valve 1. Place the valve between the two pre installed flanges (flange butterfly valve needs pre installed gasket position at both ends) 2. Insert the bolts and nuts at both ends into the corresponding flange holes at both ends (the gasket p...Read more -
The difference between knife gate valve and gate valve
Knife gate valve is suitable for mud and medium pipeline containing fiber, and its valve plate can cut off the fiber material in medium; it is widely used in conveying coal slurry, mineral pulp and papermaking slag slurry pipeline. Knife gate valve is the derivative of gate valve, and has its uni...Read more -
The main process of blast furnace ironmaking
The system composition of the blast furnace ironmaking process: raw material system, feeding system, furnace roof system, furnace body system, crude gas and gas cleaning system, tuyere platform and tapping house system, slag processing system, hot blast stove system, pulverized coal preparation a...Read more -
The advantages and disadvantages of various valves
1. Gate valve: Gate valve refers to a valve whose closing member (gate) moves along the vertical direction of the channel axis. It is mainly used for cutting off the medium in the pipeline, that is, fully open or fully closed. Generally, the gate valve cannot be used as an adjustment flow. It can...Read more -
What is an accumulator？
1. What is an accumulator Hydraulic accumulator is a device for storing energy. In the accumulator, the stored energy is stored in the form of compressed gas, compressed spring, or lifted load, and applies force to a relatively incompressible fluid. Accumulators are very useful in fluid power sys...Read more -
Valve design standard
Valve design standard ASME American Society of Mechanical Engineers ANSI American National Standards Institute API American Petroleum Institute MSS SP American Standardization Association of Valves and Fittings Manufacturers British Standard BS Japanese Industrial Standard JIS / JPI German Nation...Read more -
Valve installation knowledge
In the fluid system, the valve is used to control the direction, pressure and flow of the fluid. In the process of construction, the quality of valve installation directly affects the normal operation in the future, so it must be highly valued by the construction unit and production unit. The va...Read more -
Valve sealing surface, how much knowleage do you know ?
In terms of the simplest cut-off function, the sealing function of the valve in the machinery is to prevent the medium from leaking out or blocking the external substances from entering the interior along the joint between the parts in the cavity where the valve is located. The collar and compone...Read more