Application specification for Z41W stainless steel flanged gate valves

1. Design and manufacture according to GB12234-89

2. The length of the structure is GB12221-89

3. Flange size according to JB T79-94

4. Valve inspection and test according to GB13927

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.

1. The selection of materials is exquisite, in line with relevant standards at home and abroad, and the overall quality of the materials is high.

2. It meets the requirements of advanced standards at home and abroad, with reliable sealing, excellent performance and beautiful appearance.

3. The sealing pair is advanced and reasonable, and the sealing surface of the ram and valve seat is made of Stellite cobalt-based cemented carbide with different hardness, which has reliable sealing, high hardness, wear resistance, high temperature resistance, corrosion resistance, good scratch resistance and long life.

4. The valve stem has been quenched and tempered and nitrided on the surface excitation delay, which has good corrosion resistance, scratch resistance and wear resistance. Ming or Lee.

5. It adopts a wedge-type bullet forest ram structure, with thrust bearings in medium and large calibers, with small friction force, and is equipped with a striking handwheel, which can be opened and closed easily. Beijing Sinopec Valve**** Hong Fuxing 010-64502005;

6. Various piping flange standards and flange sealing surface forms can be used to meet various engineering needs and user requirements.

Model Nominal diameter Dimensions (mm) l d d1 d2 b-f z- d h d0 15 130 95 65 45 14-2 4-14 170 120 20 150 105 75 55 14-2 4-14 200 120 25 160 115 85 65 14-2 4-14 215 140 32 180 135 100 78 16-2 4-18 260 160 40 200 145 110 85 16-3 4-18 290 200 50 250 160 125 100 16-3 4-18 345 220 65 265 180 145 120 18-3 4-18 360 240 80 280 195 160 135 20-3 8-18 385 280 100 300 215 180 155 20-3 8-18 430 300 125 325 245 210 185 22-3 8-18 520 320 150 350 280 240 210 24-3 8-23 610 350 200 400 335 295 265 26-3 12-23 765 400 250 450 405 355 320 30-3 12-25 895 450 300 500 460 410 375 30-4 12-25 1145 500 350 550 520 470 435 34-4 16-25 1200 550 400 600 580 525 485 36-4 16-30 1400 600 450 650 640 585 545 40-4 20-30 1500 650 500 700 705 650 608 44-4 20-34 1630 700 600 800 840 770 718 48-5 20-41 1830 800

Z41W stainless steel flange gate valve is a valve used in the pipeline of various systems of petroleum, chemical, hydraulic and thermal power stations.

Model Nominal diameter Dimensions (mm) l d d1 d2 b-f z- d h d0 15 130 95 65 45 14-2 4-14 170 120 20 150 105 75 55 14-2 4-14 200 120 25 160 115 85 65 14-2 4-14 215 140 32 180 135 100 78 16-2 4-18 260 160 40 200 145 110 85 16-3 4-18 290 200 50 250 160 125 100 16-3 4-18 345 220 65 265 180 145 120 18-3 4-18 360 240 80 280 195 160 135 20-3 8-18 385 280 100 300 215 180 155 20-3 8-18 430 300 125 325 245 210 185 22-3 8-18 520 320 150 350 280 240 210 24-3 8-23 610 350 200 400 335 295 265 26-3 12-23 765 400 250 450 405 355 320 30-3 12-25 895 450 300 500 460 410 375 30-4 12-25 1145 500 350 550 520 470 435 34-4 16-25 1200 550 400 600 580 525 485 36-4 16-30 1400 600 450 650 640 585 545 40-4 20-30 1500 650 500 700 705 650 608 44-4 20-34 1630 700 600 800 840 770 718 48-5 20-41 1830 800

The gate valve connected by high and medium pressure flange is suitable for cutting off or connecting the pipeline medium of various systems of petroleum, chemical, hydraulic and thermal power stations with nominal pressure and working temperature of -29 550. The applicable medium is: water, oil, steam, acid, alkali, ammonia, urea, sulfur-containing natural gas, etc.

The operation modes are: manual, geared, electric, pneumatic, etc.