What is the difference between the American standard globe valve J40 and J41?

From the model you gave, you know that this is not an American standard valve! Only the national standard is used in the front letter of pinyin to indicate the valve, and the one who eats a hamburger will not be marked like this. J41 expression flange connection disc unbalanced straight flow channel globe valve! As for the J40, I haven't heard what the valve is.

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.

Summary. Hello, the product characteristics of J41 national standard globe valve are:

1. The structure is simple, and the manufacturing and maintenance are relatively convenient. 2. The working stroke is small and the opening and closing time is short.

3. Good sealing, small friction between sealing surfaces, and long service life.

What is the difference between the globe valve J46Y and J41?

Hello, the special rolling point of J41 national standard globe valve products is 1, the structure is simple, and the manufacturing and maintenance are relatively convenient. 2. The working stroke is small and the opening and closing time is short. 3. Good sealing, small friction between sealing bucket surfaces, and long service life.

y indicates that the sealing surface material is cemented carbide

Do you have any more questions?

Do you have any other questions? If you are satisfied with my service, please give me a review

1) Straight-through shut-off valve.

2) Angle globe valve; In the angular shut-off differential valve, the fluid only needs to change direction once, so that the pressure drop through this valve is smaller than that of the shut-off valve of the conventional structure.

3) DC shut-off valve; In a flow-through or Y-shaped globe valve, the flow channel of the valve body is inclined to the main channel, so that the degree of damage to the flow state is smaller than that of the conventional globe valve, so the pressure loss through the valve is correspondingly smaller.

4) Piston globe valve: This form of globe valve is a variant of the conventional globe valve. In this valve, the disc and seat are usually designed based on the plunger principle.

The disc is ground into a plunger connected to the stem, and the seal is achieved by two elastic seals that are sleeved over the plunger. The two elastomeric seals are separated by a collar and the seals around the plunger are pressed firmly by a load applied to the bonnet by the bonnet nut. Replaceable seals can be made of a wide variety of materials, and the valve is mainly used for "on" or "off", but is available with a special form of plunger or special collar that can also be used to regulate the flow rate.

The holding point of the J41W globe valve.

1) The structure is simpler than that of gate valves, and it is more convenient to manufacture and maintain.

2) The sealing surface is not easy to wear and abrasion, the sealing performance is good, there is no relative sliding between the valve disc and the sealing surface of the valve body when opening and closing, so the wear and abrasion are not serious, the sealing performance is good, and the service life is long.

3) When opening and closing, the disc stroke is small, so the height of the stop valve is smaller than that of the gate valve, but the structural length is longer than that of the gate valve.

4) The opening and closing torque is large, the opening and closing is more laborious, and the opening and closing time is the principal.

5) The fluid resistance is large, because the medium channel in the valve body is tortuous, the fluid resistance is large, and the power consumption is large.

6) When the nominal pressure is 16MPa, the medium flows upwards from the bottom of the valve disc; When the nominal pressure is PN 20MPa, counterflow is generally adopted, and the medium flows down from above the disc to increase the seal energy. When in use, the globe valve medium can only flow in one direction, and the flow direction cannot be changed.

7) When fully open, the disc is often eroded.