Notice:The original Zhejiang Chaoda valve Co., Ltd upgraded itself to Chaoda Valves Group Co., Ltd, that is the Chaoda Valves Group, and as Chaoda Group for short.


Large Diameter Safety Valve


     CHAODA group专业研制生产大口径安全阀等 valve products, CHAODA生产的大口径安全阀用在受压设备,容器或管道上作为超压保护装置,当设备压力升高超过允许值,能自动开启,继而全量排放,以防止设备压力继续升高。当压力降到规定值时,阀门能及时关闭以免压力过分降低,从而保证生产正常进行。

CHAODA Valves Group is specialized in manufacturing Large diameter safety valve which is used to prevent the overpressure in pressure retaining vessel, device or pipeline.  When the pressure in device increases to the permissible value, the safety valve would automatically open itself to release the pressure to avoid overpressure. However, the safety valve would close itself to ensure the normal operation when the pressure are below the permissible value. 


With similar function as the blower used safety valve & negative pressure safety valve, the large dirmater safety valve is also an automatical protective valve used in boiler, pressure vessel and pipeline(This is why it has another name of safety valve for gas) to protect the safety of people and devices by preventing the overpressuring phenomenon.

    CHAODA GROUP WENZHOU E-BUSINESS CO.,LTD. is a wholly owned subsidiary of CHAODA VALVES GROUP CO.,LTD.With Chaoda valves group(CHAODA group”) quality management and safety system(Get the approvals of ISO9001,ISO14001,OHSAS18001, API6D, CE/PED, API607,API6FA, ISO15848-1, TS and API600 gate valve certified),top level developing team(Provincial Key Enterprise research Institute,Provincial Key Enterprise Technology Innovative Group, Provincial Enterprise Technology Center),advanced machining equipment, well chemical analyst and inspection equipment(Optical Spectrometer, Helium low emission tester, High & Low temperature performance equipment and etc)we could provide our clients with perfect products and satisfied service.


Bore: NPS1/2~NPS20,DN15~DN500
Rating: Class150~Class1500,PN16~PN160
Material: Carbon Steel,Stainless Steel,Alloy Steel,Duplex Stainless Steel
Operation: Manual,Gear Operated,Electric Operated,Pneumatic Operated
Applicable: Oil,Chemical,Natural Gas,Petrochemical,Coal Chemical and so on

Honor:Zhejiang Famous Brand,Zhejiang Famous Exporting Brand,Chinese patent...


大口径安全阀 product description

    大口径安全阀适用于Class150~Class1500,PN16~PN160的各种管路上,用于防止管路出现异常升压。选用不同的材质,CHAODA group的大口径安全阀可分别适用于水,蒸汽,油品,硝酸,醋酸,氧化性介质,尿素等多种介质。

Large diameter safety Valve is suitable for using on various kinds of pipeline from Class150 To Class1500, PN16 To PN160 to avoid the phenomenon of overpressuring of pipeline. By using different material, the valves could be suitable for medium such as water, steam, oil, nitric acid, acetic acid, oxidizing substance, carbamide and etc. 

    CHAODA GROUP WENZHOU E-BUSINESS CO., wholly owned subsidiary by Chaoda Group,Professional sales CHAODA group products,CHAODA valve products。CHAODA valves won the reputations of Zhejiang Famous Trademark,Zhejiang Famous Brand,Zhejiang Famous Exporting Brand and also enjoys prizes of 101 National Patent。

大口径安全阀 product features

     CHAODA 大口径安全阀 has the features of Good sealing, reliable, safety and long life span.

Large diameter safety valves developed by Chaoda have following good characteristics: good sealing performance, reliable safety guarantee, long life span and etc.

     CHAODA VALVES GROUP CO.,LTD. launched its quality management and safety system as ISO9001,ISO14001,OHSAS18001, API6D, CE/PED, API607,API6FA, ISO15848-1 TS and API 600.

大口径安全阀 standards

Design and manufacture standards:API,GB,JB
 Face to face dimensions standards:ASME B 16.10,GB/T 12221
 Flange dimensions standards:ASME B 16.5,GB,JB,HG,SH,BS,DIN,JIS...
 Testing inspection standards:API 598,GB/T 13927,GB/T 26480,JB/T9092,ISO 5208

大口径安全阀 parts and material

大口径安全阀 main size and weight

How to Order:   

1.Clients could email us your enquiry including following information.