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API bellows stop valve

Technical Parameters

Product model: WJ41H

Design standard: ASME B16.34
Structural length: ASME B16.5
Connecting flange: ASME B16.5
Testing and Inspection: API 598
Valve body material: WCB/CF8/CF8M/CF3/CF3M/WC6/WC9
Nominal diameter: DN15-DN350
Nominal pressure: CL150LB-900LB
Connection method: flange, welding
Applicable media: Steam, heat transfer oil, hot and cold water, molten salt, other chemical media, etc

Application industries: petroleum, chemical, power, pharmaceuticals, metallurgy, polycrystalline silicon, new energy and other industries



Product Details

PRODUCT OVERVIEW

The reinforced bellows stop valve is made of metal bellows sealing technology. The high-performance metal bellows and bellows sealed stop valve are designed with bellows seal, which completely eliminates the shortcomings of rapid aging and easy leakage of ordinary valve stem packing, not only improves the use energy efficiency, increases the safety of production equipment, and reduces the maintenance cost and frequent maintenance, It also provides a clean and safe working environment. Widely used in: petrochemical industry, chemical fiber textile, plastic papermaking, electric power steel, printing and dyeing rubber, food and other industries.


STRUCTURAL FEATURES

1. The valve body adopts German coated sand casting technology, which greatly improves the surface finish and mechanical properties of the valve body, reduces the occurrence of pores, sand holes and cracks, and enhances the tensile strength of the casting.

2. When the valve is closed, the conical sealing surface with "scraping effect" can automatically remove surface impurities, which can ensure reliable sealing and longer service life of the valve disc.

3. Double sealing design (bellows + packing), in line with international sealing standards.

4. All bellows pass helium test and all valves pass standard test to ensure zero leakage.

5. Products above DN150 are equipped with special devices to effectively prevent the valve from shaking, noise and internal parts damage during use, and the service life is effectively increased by more than 150%.

6. Various valves can be provided according to working conditions.


MAIN SPECIFICATIONS, DIMENSIONS AND WEIGHT

Model WJ41H-16
Pressure class PN16
caliber 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350
L 130 150 160 180 200 230 290 310 350 400 480 600 730 850 980
H 195 200 220 225 235 250 260 265 370 400 515 550 600 630 680
Do 130 130 130 130 150 150 180 180 200 200 400 450 450 500 500
Weight(Kg) 4 4.5 5 7 9 12.5 18 23 41 54 90 160 260 410 610

 

Model WJ41H-25
Pressure class PN25
caliber 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350
L 130 150 160 180 200 230 290 310 350 400 480 600 730 850 980
H 195 200 220 225 235 250 260 265 370 400 515 550 600 630 680
Do 130 130 130 130 150 150 180 180 200 200 400 450 450 500 450
Weight(Kg) 4 4.5 5 7 9.5 13 19 24 43 57 95 168 300 510 680

 

Model WJ41H-40
Pressure class PN40
caliber 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350
L 130 150 160 180 200 230 290 310 350 400 480 600 730 850 980
H 195 200 220 225 235 250 260 265 370 400 515 550 600 630 680
Do 130 130 130 130 150 150 180 180 200 200 400 450 450 500 500
Weight(Kg) 4 4.5 5 8 10 13.5 20 25 45 60 98 171 340 580 780

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Shanghai Lidun Valve Manufacturing Co., LTD

Add: No. 175, Lane 250, Fangde Road, Jiading District, Shanghai

Tel: +86-21-51863336

Fax: +86-21-34677003

E-mail: shldv@139.com

Web: Http://www.shldv.com

Fujian plant site：2233 Maosheng Road, Nan 'an City, Fujian Province

Factory telephone：+86-21-31007333

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