The difference between the appearance and model of the silencer check valve and the general check va

Silencer check valve.

Ordinary vertical check valve.

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.

Check valves are copied according to the structure.

points, which can be divided into lifting check bai

There are three kinds of valves, swing check valves DU and butterfly check valves: Zhi1There are two types of lifting check valves: vertical and horizontal.

2.There are three types of swing check valves: single-petal, double-petal and multi-petal.

3.The butterfly check valve is a straight-through type.

The above check valves can be divided into four types in connection form: threaded connection, flange connection, welded connection and clamp connection.

Check valve refers to the valve that automatically opens and closes the valve disc by relying on the flow of the medium itself to prevent the medium from backflowing, also known as check valve, check valve, reverse flow valve, and back pressure valve. The check valve is an automatic valve, and its main function is to prevent the backflow of the medium, prevent the pump and the drive motor from reversing, and the discharge of the container medium.

Attention should be paid to the following matters in the installation of check valves:

1. Do not let the check valve bear the weight in the pipeline system, and the large check valve should be supported independently so that it is not affected by the pressure generated by the pipeline system.

2. During installation, pay attention to the direction of the medium flow should be consistent with the direction of the arrow marked on the valve body.

3. The lifting vertical flap check valve should be installed on the vertical pipeline.

4. The lifting horizontal flap check valve should be installed on the horizontal pipeline.

Different classification methods are different, generally divided according to the structure: 1) swing check valve 2) lifting check valve.

Version 3) Disc Check Valve 4) Pipeline Weight Check Valve 5) Air Discharge Check Valve 6) Slow Closing Check Valve 7) Diaphragm Check Valve 8) Wear-free Ball Check Valve 9) Float Type Fluoroplastic Lined Check Valve 10) Float Type Fluoroplastic Lined Y Check Valve 11) High Efficiency Silent Check Valve 12) Flow Control Buffer Check Valve 13) Swing Check Valve with Pneumatic Closing Device 14) Swing Check Valve with Pneumatic Device 15) Internal Pressure Self-sealing Valve Cover DC Type Swing Check Valve 16) Swing check valve with minimum flow nozzle 17) Clamp type silencer check valve 18) Clamp thin check valve 19) Double plate check valve for gas 20) Double disc plate buffer check valve 21) Electric slow closing butterfly check valve The rest is divided according to pressure, temperature, material, size, and connection method.

Check valve is also known as check valve, check valve, check valve can effectively prevent the backflow of the medium in the pipeline, the principle is to rely on the flow of the medium itself and automatically open and close the valve disc. There are many types of check valves, and the meanings they represent are also different, such as form, connection, sealing, etc. The model meaning of the check valve is prepared in the description (such as H41H-10C) check valve additional number:

HH micro-resistance slow-closing check valve, BH insulated check valve, HQ ball check valve; Check valve type: H stands for check valve; Check valve connection: 4 flanges, 6 welded, 7 pairs of clamps; Check valve form:

1 lifting type, 2 vertical type, 4 rotary type, 6 double valve type, 8 butterfly type; Check valve seal: B babbitt, F fluoroplastic, H Bukai finger rust steel, M Monel alloy, X rubber, Y cemented carbide, W direct machining; Check valve pressure: 10 pressure ten kg, pound 150lb-2500lb, daily grade 5k-63k; Check Valve Material:

Q ductile iron, C carbon steel, P-304, R-316, A titanium alloy, I chromium-molybdenum steel; Common models of standard check valves: clamp lifting check valves: H71X, H71H; Butterfly double-flap check valve:

h76x、h76h;Clamp disc check valve: H74H, H74I, H74M; Silent check valve: H42H, H42W; Micro-resistance slow-closing check valve:

hh44h、hh46h、hh49h;Rubber disc check valve: HC44X; Silencer check valve: HC41H, HC41X, HC41T; Lifting check valve:

h41h, finch grandson destroyed h41w; Swing check valve is prepared: H44H, H44W; Slide Ball Check Valve: HQ41X; Welded check valve:

h61y、h62y、h64y。For example, the model meaning of the standard valve HC41X-16Q check valve indicates the flange silencer check valve.

According to the structure, the check valve can be divided into three types: lifting check valve, swing check valve and butterfly check valve

1. The lifting check valve is divided into two types: vertical and horizontal.

2. Swing-open check valves are divided into three types: single-petal type, double-valve type and multi-valve type.

3. The butterfly check valve is a straight-through type.

The check valve is a valve that automatically opens and closes the valve disc by relying on the flow of the medium itself to prevent the medium from flowing backwards, also known as check valves, check valves, reverse flow valves, and back pressure valves. The check valve is an automatic valve, and its main function is to prevent the backflow of the medium, prevent the pump and the drive motor from reversing, and the discharge of the container medium.

One-way valve: Check valve, also known as check valve or check valve, is used to prevent the backflow of media in the pipeline. The foot valve of the suction off of the water pump also belongs to the category of check valves.

The opening and closing parts rely on the flow and force of the medium to open or close by themselves, so as to prevent the medium from flowing backwards. Check valves belong to the automatic valve category, which are mainly used on pipelines where the medium flows in one direction, and only allow the medium to flow in one direction to prevent accidents.

One-way valve: According to the structure, it can be divided into three types: lifting check valve, swing check valve and butterfly check valve. Lifting check valves can be divided into vertical and horizontal types.

There are three types of swing check valves: single-petal, double-petal and multi-petal. The butterfly check valve is a straight-through type, and the above check valves can be divided into three types: threaded connection, flange connection and welding.

Installation of vacuum check valve (one-way valve): the installation should pay attention to the following things: 1. Do not make the check valve bear weight in the pipeline, large check valve (AETV one-way valve):

It should be supported independently so that it is not affected by the pressure generated by the pipe.

2. During installation, pay attention to the direction of the medium flow should be consistent with the direction of the arrow marked on the valve body.

This one is more challenging.

In my opinion, these are all check valves, but the designer has made notes on the structural characteristics of the check valve itself to make it easy to distinguish.

Check valve - angle If translated as angle valve, it is definitely wrong, but if an angle is added behind the check valve, could it be that this valve is not an ordinary check valve, but a check valve with a right-angle structure? Pure speculation. Translated as right-angle check valve.

Check Valve - Angle Stop Same as above, the check valve with right-angle structure mainly plays the role of shutting off the flow. Translated as right-angle shut-off valve.

Check Valve - Anti Whip There is a professional definition of physics, (Anti Whip Device) pipe anti-slinger device, I guess there should be an anti-impact meaning here, which happens to be one of the functions of the check valve. Here I translate this as anti-flush valve.

Check Valve - Stop is different from Angle Stop, a normal structure, which here translates as a shut-off valve.

check valve check valve.

Check Valve - Tilting Disk, this should be a special note on the structure of the check valve, in JBT308, the structure of the check valve has a disc structure, which should be a kind of swing valve disc.

Check Valve - A check valve with a wafer flat plate construction.

Check Valve - Y Stop Check Valve, also a form of construction. If you don't understand this, let's translate it into Y-type shut-off valve.

Check Valve - Angle check valve, the body flow channel is a right-angle turn.

Check Valve - Angle Stop Globe Check Valve, an angle check valve that functions as both a globe valve and a check valve.

Check Valve - Anti Whip non-impact check valves, also known as axial flow check valves, can greatly reduce the fluid shock caused by the operation of the check valve, reducing the damage to the disc caused by water hammer shock.

Check Valve - Stop Globe Check Valve, a check valve that functions as both a globe valve and a check valve.

check valve check valve.

Check Valve - Tilting Disk Swash plate check valve, the function of this structure is also to reduce the fluid impact, reduce the damage to the valve disc by water hammer impact, and I personally think that the effect is not as good as the axial flow type.

Check Valve - Wafer is a pinch check valve with a simple structure and a small footprint, but it can only be used in risers and pipes where the medium flows from the bottom to the top.

Check Valve - Y Stop Y type globe check valve, both globe valve and check valve function Y type check valve, Y type check valve is the valve disc sealing action at an inclined angle, the resistance drop is lower than the traditional lifting type.

Abstract:The silencer check valve is a kind of check valve that can reduce or eliminate the noise generated by the water flow through the valve, and the reason why it has the effect of silencing is that the internal water flow path of the silencer check valve adopts a streamlined design, the head loss is very small, and the valve disc can be quickly closed to avoid water hammer and prevent the sound of huge water hammer, so as to have the effect of silencing. In addition to the silencer check valve, there is also a silent check valve, comparatively speaking, the principle and function of the two are similar, but the silence effect of the silent check valve is better, and the sound can be directly shielded.

Let's take a look at the silencer check valve. 1. How is the silencer check valve silenced.

The check valve can prevent the internal medium from backflowing, but it has a disadvantage, that is, it will produce relatively large noise, in some special occasions, lower noise is required, so there is a valve of the silencer check valve, so what is the silence principle of the silencer check valve?

Ordinary check valves will have noise, mainly because the water pressure and flow are affected in the process of water flow, and there is a certain amount of energy loss, which produces water hammer and noise; The internal water flow path of the silencing check valve adopts a streamlined design, and the head loss is very small, which is about 1 2-1 3 compared with the ordinary check valveAt the same time, because the disc of the silencing check valve is spring-loaded, the disc closing stroke is very short when the pump is stopped, and it can be closed quickly to avoid water hammer and prevent the sound of huge water hammer, so as to achieve the effect of silencing.

2. What is the difference between a silencing check valve and a silent check valve?

Silencer check valve and silent check valve are both commonly used in hydraulic control valves in a type of hydraulic valve, installed at the outlet of the water pump, to avoid huge water hammer, to prevent backflow, the effect is similar, and can reduce noise when in use, but these two kinds of check valves also have some differences.

The difference between the silencer check valve and the silent check valve is mainly in the silencing ability, the silencer check valve only eliminates the noise and reduces the noise; The silent check valve can directly shield and mute the sound when in use.

The reason why the silent check valve has a stronger silencing ability than the silencing check valve is mainly because of the difference in principle, the silent check valve, which adopts the contour design in line with hydraulics, obtains the best streamlined waterway next to the filial piety, and the design of the internal attachment to the fluid can ensure small pressure loss; The silent check valve is installed at the outlet of the water pump, which can be quickly closed before the water flows backwards, avoiding water hammer, water hammer and destructive impact, so as to achieve a silent effect.

The silencing effect of the silencer check valve and the silent check valve is different, and the use is mainly based on the needs of customers and the use of occasions to choose.