ZHENGZHOU JINGGONG VALVE CO., LTD.   008618135671959
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Three-stage Slow-closing Check Butterfly Valve

  • Size rangeDN250~2000mm NPS10"~200"
  • PressurePN0.25~2.5MPa Class150/Class300
  • Body materialductile cast iron, cast steel
  • Operationhydraulic
  • Standard: ANSI, API, DIN, EAC, JIS, CE, ISO, EN, GB
  • More than 40 years professional valve manufacturer.
  • Products are exported to more than 72 countries.
  • Products are widely used in petroleum, chemical industry, metallurgy, electric power, water supply, coal gas, natural gas and other industries.
  • High reliability, excellent quality, fast service, online support
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Structural features:

1. Simple structure, reliable check effect.

2. The slow-closing system is less affected by the medium in the pipeline, and the adjustment and maintenance are simple.

3. The valve closure is divided into three stages: fast shut-off, slow shut-off and slow closure, which can effectively prevent the impact of water hammer on the system.

4. Smooth opening and closing, eliminating noise.

5. The valve closure process, slow closing and slow closing time can be adjusted through the cylinder to control the best time.

6. Anti-mud and sand self-lubricating bearings.

7. The valve structure adopts three eccentric, inclined plate type, hard seal structure, featuring short friction stroke of sealing surface, rapid opening, reliable sealing and long service life.

Technical Parameters:

H42X/H H43X/H Main Dimensions (mm)
DN H1 H2 1.0MPa 1.6MPa 2.5MPa
D D1 n-d D D1 n-d D D1 n-d
200 210 340 230 340 295 8-Φ23 340 295 12-Φ23 360 310 12-Φ28
250 245 375 250 395 350 12-Φ23 405 355 12-Φ28 425 370 12-Φ31
300 270 400 270 445 400 12-Φ23 460 410 12-Φ28 485 430 16-Φ31
350 300 430 290 505 460 16-Φ23 520 470 16-Φ28 555 490 16-Φ34
400 340 490 310 565 515 16-Φ28 580 525 1G-Φ31 620 550 16-Φ37
450 370 515 330 615 565 20-Φ28 640 585 20-Φ31 670 600 20-Φ37
500 405 570 350 670 620 20-Φ28 715 650 20-Φ34 730 660 20-Φ37
600 485 630 390 780 725 20-Φ31 840 770 20-Φ37 845 770 20-Φ40
700 570 750 430 895 840 24-Φ31 910 840 24-Φ37 960 875 24-Φ43
800 640 860 470 1015 950 24-Φ34 1025 950 24-Φ40 1035 990 24-Φ49
900 710 980 510 1115 1050 28-Φ34 1125 1050 28-Φ40 1185 1090 20-Φ49
1000 770 1050 550 1230 1160 28-Φ37 1255 1170 28-Φ43 1320 1210 28-Φ56
1200 920 1210 630 1455 1380 32-Φ40 1485 1390 32-Φ49 1530 1420 32-Φ56

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zzjg cases

I recently purchased a valve product, and I must say, I'm highly satisfied with my purchase. The quality of the valve exceeded my expectations. It's well-built, durable, and functions flawlessly. The installation process was smooth, thanks to clear instructions provided with the product. What impressed me the most was its reliability; it hasn't leaked or malfunctioned since I started using it.

India

Purchasing Manager

the customer service I received from the manufacturer was outstanding. They were responsive to my inquiries and provided helpful assistance when I had questions about the product specifications. Overall, I believe I made a wise choice by choosing this valve, and I would certainly recommend it to others in need of a reliable and high-quality valve solution.

USA

Purchasing Manager
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ZHENGZHOU JINGGONG VALVE CO., LTD.
TOTAL SOLUTIONS FOR FLOW SYSTEM

Address: Chuangye Road, Gaoshan Town,
Zhengzhou City, China

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