A backflow prevention valve that can be used in gas piping for combustion equipment such as city gas and LPG. It operates at low differential pressure and prevents the backflow of combustion air.
【Application】 Backflow prevention for gas lines 【Features】 Operates with low pressure loss and can function even at low differential pressures. Available for pipe sizes from 15A to 100A. Can be installed in a "horizontal" direction or in a "vertical" direction with flow from bottom to top. 【Gas Types】 - City gas (13A) - Propane (LPG) - Please inquire for other types. *Please refrain from using with air or oxygen piping as it contains NBR. CAD drawings are also available for download. 2D (DXF), 3D (STEP)
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basic information
【Size Lineup】 CV-15 (15A) CV-20 (20A) CV-25 (25A) CV-40 (40A) CV-50 (50A) CV-80 (80A) CV-100 (100A) 【Gas Used】 - City Gas (13A) - Propane (LPG) - For other inquiries, please contact us. *Please refrain from using with air or oxygen piping as NBR is used.
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Applications/Examples of results
【Application】 Prevention of backflow in gas lines, check valve 【Gas Used】 - City gas (13A) - Propane (LPG) - Nitrogen gas *Please refrain from using with air or oxygen piping as it contains NBR.
catalog（1）
Download All Catalogs![[Catalog] Check Valve (One-Way Valve) CV Series](https://image.www.ipros.com/public/catalog/image/01/9c6/704559/IPROS17113356539166000350.jpeg?w=120&h=170)
CAD data（2）
| Model number | overview | File |
|---|---|---|
| CV_2DCAD | CV-15,20,25,40,50,80,100 DXF format (2D) |
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| CV_3DCAD | CV-15, 20, 25, 40, 50, 80, 100 STEP format (3D) |
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Company information
At Shoei Manufacturing Co., Ltd., we are taking on the challenge of "hydrogen combustion"! In addition, we offer a wide range of thermal equipment, including "design and manufacturing of various original burners," "safety combustion system piping equipment," "food heating," "smoke and odor removal devices," "industrial furnaces related to painting and heat treatment," and "aluminum industrial furnaces such as melting and holding furnaces." Please also consult us about our self-developed energy-saving burners and "hybrid heating" that utilizes the unique characteristics of both "gas" and "electricity."
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