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Qucheng Valve Manufacturing Co., Ltd.

Add: Huilong Road, Hengfeng County Economic Development Park, Shangrao City, Jiangxi, China

Zip code: 334300

Tel: +86-793-5666767

Fax: +86-793-5666768

Marketing Department:

Mei Duanping +86-18279315000

Qiu Zhiqiang +86-18507949570

Kong Xinming +86-13576394097

General manager:

Denny Zhang +86-13905893101

Email: valve@quchenggroup.com

URL: www.quchengvalve.com

Group: www.quchenggroup.com

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Stainless steel Swing Check valve

Uses and features:
GB12236 in strict accordance with the standards the product Design and manufacture, pin shaft and the Valve clack connection USES the built-in type structure, excellent performance, reliable seal. Products are widely used in petroleum, chemical, pharmaceutical, electric power industry and so on all kinds of working condition of the pipeline.
The function of the Swing Check valve is used to prevent the backflow medium pipeline. Check valve belong to automatic valve class, opening and closing by medium flow to open or closed. The Check valve is used only for one-way flow of medium pipeline, prevent medium return, in case of an accident.
Execution standard:
Design and manufacture: GB12236
Length of structure: GB12221
Connecting flange: JB/T79-1994
Test and inspection: JB/T9092-1999
Applicable medium: Water, oil, steam, acid medium, etc
Materials for main parts

Part name Materials
Body and cap carbon Cast steel Stainless steel
Valve clack carbon Cast steel + cemented carbide Stainless steel + cemented carbide
Rocker carbon Cast steel Stainless steel

Main Performance Spcification:

Test pressure Nominal pressure ( MPa )
1.6 2.5 4.0 6.4 10.0
Shell test 2.4 3.8 6.0 9.6 15.0
Sealing test 1.8 2.8 4.4 7.1 11.0
The material of valve body WCB(C) CF8(P) CF 8M (R) WC6 WC9
Working temperature ≤ 425 ≤ 100 ≤ 100 ≤ 550 ≤ 550
Applicable medium Water, steam, oil nitric acid type Acetic Acid type Water, steam, Water, steam,

Main Connection Dimensions:

Nominal diameter PN1.6/2.5MPa PN4.0MPa PN6.4/10.0MPa
L H L H L H
Series  1 Series  2 Series  1 Series  2
DN40 200 200 130 200 200 130 260 160
DN50 230 230 135 230 230 135 300 170
DN65 290 290 145 290 290 145 340 180
DN80 310 310 175 310 310 175 380 245
DN100 350 350 200 350 350 200 430 290
DN125 400 400 255 400 400 255 500 320
DN150 480 480 320 480 480 320 550 360
DN200 495 550 380 533 550 380 650 430
DN250 622 650 440 622 650 440 775 505
DN300 698 750 480 711 750 520 900 555
DN350 787 850 530 838 850 540 1025 595
DN400 864 950 560 864 950 590 1150 680
DN450 978 1050 620 978 1050 650 1275 780
DN500 978 1150 655 978 1150 720 1400 970