Z4LH 25 type gate valve applicable temperature

The Z41H-25 wedge gate valve is suitable for 350 °C.

Z41H-25 wedge gate valve, nominal pressure, strength test pressure, liquid seal test pressure, gas low pressure seal test pressure, applicable medium is water, steam, oil, etc., applicable temperature 350.

Z41H-25 wedge gate valve body and bonnet are made of carbon steel, the ram and valve seat are made of carbon steel surfacing chromium stainless steel, the stem material is chromium stainless steel, the stem nut material is aluminum-iron bronze, the packing is graphite-asbestos packing, and the handwheel is malleable cast iron or ductile iron.

Here are some of the well-known brands recognized in the valve industry, which are widely recognized and have a high reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:

The following influential first-line brands of water system valves and industrial valves can be used as a reference, but for reference only: Suzhou Neway Valve, Shanghai Guanlong Valve, Shanghai Qizhong Valve, Sanhua, Su Yan, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.

These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.

According to JB T308

Greater than or equal to PN25 is not marked with the body material code, and the body material is carbon steel.

Looking at the pressure-temperature rating table in GB T12224, when carbon steel is used for a long time at a temperature greater than 427, the carbide phase in the steel will be converted into graphite. Therefore, its operating temperature is generally -29 to 425

Z45X-16Q, Z represents gate valve, 4 means flange connection.

5 refers to the dark rod gate valve, X refers to the rubber seal, and 16 refers to the nominal pressure.

RVHX means manual gate valve, 150 refers to the caliber of DN150, and 10 represents the nominal pressure. RVHX Dark Rod Resilient Seat Seal Gate Valve was the first to be crowned.

The valve factory is a special model, and the Z45X is a national standard model.

What does gate valve Z42H-16C mean.

Dear, hello, according to the "valve model preparation method", it can be known that Z41H-16C is an open rod cast steel gate valve model. The meaning of each character in the specific model is: Z represents the gate valve, 4 represents the flange connection, 1 represents the rigid single gate of the open rod structure, H represents the sealing surface of the valve seat is CR13 series stainless steel, 16 represents the nominal pressure of 16 kg, and C represents the gate valve body made of cast steel.

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The above is the answer I summarized for you, I am very happy to serve you, please give me a thumbs up, thank you very much for your <>, I hope my help to you, and then I hope you are happy every day, happy life<> good luck always with you<>

Z is the gate valve (the first letter of zha), 4 is the flange connection, 1 is the open rod wedge rigid single gate, h is the material code of the valve seat sealing surface or lining (the first letter of the alloy steel of HE) 25 is the nominal pressure of the valve, that is, the maximum working pressure under normal operation is 25 kg, and the one with C behind it should be cast steel.

A valve is a pipeline attachment used to open and close pipelines, control the flow direction, regulate and control the parameters (temperature, pressure and flow rate) of the conveyed medium. According to its function, it can be divided into shut-off valves, check valves, regulating valves, etc. Valves are control components in fluid transportation systems, which have the functions of shut-off, regulation, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief.

Valves for fluid control systems range from the simplest shut-off valves to the most complex valves used in automated control systems.

Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, slurries, oils, liquid metals and radioactive media. Valves are also divided into cast iron valves, cast steel valves, stainless steel valves, etc.), chrome-molybdenum steel valves, chrome-molybdenum vanadium steel valves, duplex steel valves, plastic valves, non-standard customized valves, etc.

The valve is a control component in the pipeline fluid transportation system, which is used to change the channel section and the direction of medium flow, and has the functions of diversion, cut-off, throttling, check, diversion or overflow pressure relief. Valves for fluid control, from the simplest globe valves to the most complex automatic control systems used in a variety of valves, its varieties and specifications, valves from the very small instrument valve to the diameter of 10m for industrial pipelines.

Z41H16C represents a single gate valve, when the gate rises and opens, the gate will automatically descend and close, mainly used in petroleum, chemical, metallurgy, pharmaceutical, food and other systems to transport high viscosity media that will solidify at room temperature.

Among them, Z represents the gate valve, 4 represents the flange, 1 represents the straight-through structure, H represents the alloy seal, Minghu 16 represents the pressure of 16 kg or, and C represents the valve body made of carbon steel or cast steel.

How the gate valve reboot works:

The opening and closing parts of the gate valve are the gate plate, the direction of movement of the gate plate is perpendicular to the fluid direction, and the gate valve can only be fully opened and closed, and cannot be adjusted and throttled. The ram has two sealing surfaces, and the most commonly used mode gate valve has two sealing surfaces forming a wedge, and the wedge angle varies with the valve parameters, usually 5°, and 2°52 when the medium temperature is not high'。

The gate plate of the wedge gate valve can be made into a whole, which is called a rigid gate; It can also be made into a ram that can produce a slight amount of deformation to improve its manufacturability and make up for the deviation of the sealing surface angle in the processing process, which is called an elastic ram. When the gate valve is closed, the sealing surface can only rely on the medium pressure to seal, that is, the sealing surface of the ram plate is pressed to the valve seat on the other side by relying on the medium pressure to ensure the sealing of the sealing surface, which is self-sealing.

Most gate valves are forcibly sealed, that is, when the valve is closed, the ram should be forcibly pressed against the valve seat by external force to ensure the tightness of the sealing surface. If the gate plate of the gate valve moves in a straight line with the valve stem, it is called the lifting rod gate valve, also known as the open rod gate valve. Usually there is a trapezoidal thread on the lifting rod, which changes the rotary motion into linear motion through the nut at the top of the valve and the guide groove on the valve body, that is, the operating torque into operating thrust.

When the valve is opened, when the ram lift height is equal to 1:1 times the valve diameter, the flow of the fluid is completely unobstructed, but this position cannot be monitored during operation. In actual use, it is marked by the apex of the valve stem, that is, the position that cannot be opened, as its fully open position.

In order to account for the lock-up phenomenon of temperature changes, it is usually rewound 1 2-1 turns back to the apex position as the position of the fully open valve.

Therefore, the fully open position of the valve is determined by the position of the ram, that is, the stroke. Some gate valves, the stem nut is located on the gate, and the handwheel rotates to drive the valve stem to rotate, and the gate is lifted, this valve is called the rotary rod gate valve, or the dark rod gate valve. <>

Summary. Hello dear, happy to answer your <>

Gate valve Z41T means cast iron gate valve with open rod. The first is the Z41T gate valve, let's split the model first, Z represents the gate valve, 4 represents the flange connection, 1 represents the open rod structure, and T represents the sealing surface made of copper alloy. The purpose of using copper seals is to prevent corrosion, the purpose of these valves is to clean water, and they are used in normal temperature and low pressure environments, and the general valve body material is mostly gray cast iron.

What does Z+41X-20T stand for?

Hello dear, happy to answer your <>

Gate valve Z41T means cast iron gate valve with open rod. The first is the Z41T gate valve, let's split the model first, Z represents the gate valve, 4 represents the code flange connection, 1 represents the open rod structure, and T represents the sealing surface made of copper alloy. The purpose of using copper seals is to prevent corrosion, the purpose of these valves is to clean water, and they are used for room temperature and low pressure ring mold collision, and the general valve body material is mostly gray cast iron.

Dear, the following is the relevant expansion, I hope to help you<> Z+41X-20T represents an advanced gate valve, which can effectively control the flow rate of the middle and has a wide range of application value. The gate valve uses an advanced control system that responds quickly and precisely regulates the flow rate to reduce the risk of leakage. The main features of the gate valve include high-strength materials, light weight, simple structure, simple maintenance and operation, etc.

It is designed with a closed structure to effectively prevent leakage and contaminants from entering the pipeline. Its sealing performance is excellent and can adapt to various harsh environmental conditions.