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.


Pound Grade Cast Steel Lift Check Valve

Pound Grade Cast Steel Lift Check Valve

     CHAODA group专业研制生产Pound Grade Cast Steel Lift Check Valve等 valve products, CHAODA生产的Pound Grade Cast Steel Lift Check Valve安装前应将阀门清洗干净,并消除在运输过程中造成的缺陷;安装时必须仔细核对阀门上的标志和铭牌是否符合使用要求.

CHAODA valves group is specialized in manufacturing Pound Grade Cast Steel Lift check valve. Before installation of Lift Check valve, clean the valve and remove all the defects caused during transportation; Be sure that the mark on valve and information on Nameplate is conformity with the requirement.

    Lift Check Valve工作原理:当介质由阀体箭头所示流向进入阀体,介质的压力作用在阀瓣上产生向上的推力,当介质推力大于阀瓣重力时,阀门打开。当阀后介质压力作用在阀瓣上的力加上阀瓣自身重力大于阀前压力作用在阀瓣上的力时,阀门关闭,阻止介质倒流。

Working Principle of Lift Check Valve When the medium passing through the valve from the inlet port, the valve would open if the pressure force of medium exceeds the gravity of disc. However, when the pressure force of backflow medium plus the force of disc's gravity is bigger than the medium force from the inlet side, the valve would close itself to prevent the backflow.

    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.

Pound Grade Cast Steel Lift Check Valve 

Type: H41H,H41W,H41Y,H71H,H71W,H71Y等

Bore: NPS½~NPS12,DN15~DN300
Rating: Class150~Class900,PN20~PN150
Material: Carbon Steel,Stainless Steel,Alloy Steel,Duplex Stainless Steel
Applicable: Oil,Chemical,Natural Gas,Petrochemical,Coal Chemical and so on


Pound Grade Cast Steel Lift Check Valve product description

    Pound Grade Cast Steel Lift Check Valve适用于Class150~Class900,PN20~PN150的各种管路上,用于截断或接通管路中的介质。选用不同的材质,CHAODA group的Pound Grade Cast Steel Lift Check Valve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。Pound Grade Cast Steel Lift Check Valve一般采用法兰连接,也可采用对焊连接。

Pound Grade Cast Steel Lift Check valves(Generally flanged connection, but Butt-welding optional) are suitable for use on various kinds of pipeline from Class150 To Class900, PN20 To PN150 to cut off or connect the flowing of medium. 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. 

    带弹簧的LIFT Check Valve 正常处于关闭状态,由于管线中进口端介质的压力作用,而克服弹簧阻力使Lift Check Valve开启。当进口端介质压力低于出口端时,弹簧将阀芯推向阀座而使阀门关闭,阻止介质逆流,故起止回作用。

Spring loaded Lift Check valve is in closed position normally. The disc of lift check valve would open owing to the pressure force of inlet side medium. When the medium pressure of inlet side becomes smaller than that of outlet, the spring would push the disc back its seat sealing face to prevent the backflow of medium.

    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。

Pound Grade Cast Steel Lift Check Valve product features

     CHAODA Pound Grade Cast Steel Lift Check Valve具有以下特点:

Pound Grade cast steel lift check valve developed by CHAODA has following features:

    Cast Steel Lift Check Valve密封副配对先进合理,阀瓣,阀座密封面采用铁基合金或司太立(Stellite)钴基硬质合金堆焊面成,耐磨,耐高温,耐腐蚀,抗擦伤性能好,使用寿命长。Lift Check Valve可采用各种配管法兰standards及法兰密封型式,满足各种工程需要及用户要求。阀体 material品种齐全,垫片可根据实际工况或用户要求合理选配,能适用于各种压力,温度及介质工况。

Reasonable selection of sealing face's material: The disc and seat ring's sealing face would be deposited with Iron-based alloy or Stellite alloy to have good features of Wear-resistance, High-temperature resistance, Corrosion resistance and Long life span. The flange & its sealing face of the lift check valve could be manufactured according to various instandards to meet the different needs of project & clients. Multiple choices of Body material and Gasket could be given to suit almost all ranges of working temperature & pressure and all kinds of medium.  

     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.

Pound Grade Cast Steel Lift Check Valve standards

 Design and manufacture standards:API 6D, API 594, BS 1868, GB/T 12235
 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 and etc
 Testing inspection standards:API 598, GB/T 13927, GB/T 26480, JB/T9092, ISO 5208

Pound Grade Cast Steel Lift Check Valve parts and material

Pound Grade Cast Steel Lift Check Valve main size and weight

CHAODA valves group co.,ltd. Professional manufacturing Pound Grade Cast Steel Lift Check Valve.


How to Order:   

1.Clients could call telephone +86-0577-67319962 or email us your enquiry including following information.

①Valve’s type, End to End dimension ②Connection Ends ③Nominal diameter ④Service medium and temperature and working pressure range
⑤Material, test standard and other requirement ⑥CHAODA could supply all kinds of actuator and spare parts and so on as client’s requirement.

2.When received clients’ enquiry, we would select the suitable valves for your and give you a offer.

3.And have a communication over the Pound Grade Cast Steel Lift Check Valve delivery or other special requirement.

4.When have special requirement on your Pound Grade Cast Steel Lift Check Valve products, please specify it in the purchasing order.

5.Should you have any question, please send email to