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$20.00 - 200.00 / pc
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Product Description:

Quick Details

Standard or Nonstandard:





Medium Pressure




Stainless Steel

Temperature of Media:

Medium Temperature



Port Size:


Place of Origin:

Tianjin, China (Mainland)

Model Number:


Brand Name:




Item name:

API Forging Check Valves,check valve types,check valve 10 inch



Key words:

check valve



Body material:

Carbon Steel, Stainless Steel

Working Temperature:


Pressure Class:




Plywood Case For Check Valve

Applicable medium:

water, oil, gas


Packaging & Delivery

Packaging Details:PVC package or wooden cases, also according to our customer's requirement.Custom made is accepted..
Delivery Detail:within 30 days after receiving advancing payment

Technical Date

Material Specification

Nominal Diameter


Valve Body

Cast Iron or Ductile Iron

Nominal Pressure


Valve Disc

Cast Iron or Ductile Iron or Stainless Steel

Operation Temperature


Flange Driling Standard

EN 1902-2 PN10/16

Seal Material


Suface Treatment


Valve Spring

Stainless Steel


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Q:What are the differences between the vertical check valve and the horizontal check valve?
Difference:The main difference is that the valve center and valve seat are placed upright and horizontally placed, usually designed with the pipe.Brief introduction:Vertical check valve: because of the pressure acting on the inlet end of the pipeline, the spring resistance is overcome so that the valve is opened or closed. When the inlet end of the media pressure is lower than the exit end, the spring will push the spool to the valve seat, so that the valve closed, to prevent the flow of medium, so the beginning of the role of back.Horizontal check valve, also known as check valve, its role is to prevent the medium back in the pipeline. The opening and closing parts depend on the flow of the medium and the power is turned on or off by itself. The valve that prevents the backflow of the medium is called a check valve. Check valves belong to the automatic valve, mainly used for one-way flow of media channels, allowing only medium to flow in one direction, to prevent accidents.
Q:How can the lift vertical check valve be distinguished from the lift horizontal check valve?
Vertical lift check valves and lift horizontal check valves are different in structure, type, appearance, including installation.Vertical lift check valve, also known as vertical check valve;Lifting horizontal valve check valve, also known as horizontal check valve.Lift check valve: check valve sliding along the vertical centerline of valve body, lift check valve can only be installed on horizontal pipe,Disc can be used in high pressure small bore check valve. The valve body of the lift check valve is the same as the cut-off valve (which can be used with the stop valve), so it has a large coefficient of fluid resistance. The structure is similar to the cut-off valve, the valve body and the disc are the same as the cut-off valve. The lower part of the upper valve and the valve cover processing guide sleeve, the valve in the valve lift free guide simple simple light driven, when the medium downstream, the valve by the media force open, when the media stopped flow, the valve by the self vertical landing on the seat, preventing the media from the upstream effect.Through lift check valve, the direction of inlet and outlet of medium is perpendicular to the direction of valve seat passage;Vertical lift check valve, the direction of its medium inlet and outlet passage is the same as that of valve seat passage, and its flow resistance is smaller than straight through.
Q:Is it necessary to install a check valve in the piston refrigeration compressor?
Following chart:Turn left and turn right | Such arrangements because when the piston machine more than 2 units installed on the same system, if there is a part of the unit stops working in another part of the unit, it will cause the exhaust side wall will refrigerant condensation in the exhaust no work unit tube, the liquid refrigerant condensation along the exhaust the accumulation of down pipe in the exhaust pipe, may cause the cylinder inlet fluid or startup are high pressure, easy to cause the damage of the compressor. Therefore, when multiple compressors are connected in parallel, the check valve must be installed at the top of the exhaust pipe. Not only the piston machine, screw machine should also be installed in the exhaust pipe, otherwise the oil inside is all refrigerant liquid, leading to running oil, there have been such problems in the project.
Q:Should the flue check valve be made by the civil team or the installation team?
The kitchen flue and check valve are all constructed by civil engineering.
Q:What kind of check valve is used to prevent the return water?
You should be horizontal check valve, with pressure difference, water pressure is not lost; or a check valve inside where the card, must be a certain pressure to baffle back.The problem can't be solved: if you change the pipe, you'll have a vertical check valve
Q:Can the check valve be horizontally installed?
Lift check valve can be divided into straight through and vertical two. Straight through lift check valve can only be installed in horizontal pipe, vertical lift check valve is usually installed in vertical pipe.
Q:What are the features of axial check valves?
Axial flow check valve (GB/T 21387-2008) by the standardization of the national valve technical committee (SAC/TC 188). The drafting unit: Shanghai Huatong Valve Co., Ltd., Ningbo aimeike copper valve valve Co. Ltd. Shanghai zhengfeng. Main drafters: Zhang Yonghui, Liu Tienan, Zheng Xuezhen, Chen Tiewang, Meng Aimin. By the national standardization valve technical committee is responsible for the interpretation.TitleAxial flow check valveAuthorState Administration of quality supervision, inspection and Quarantine of the People's Republic of China, China National Standardization AdministrationPublication dateMay 1, 2008LanguagesSimplified ChineseISBNOne hundred and fifty-five billion sixty-six million one hundred and thirty-one thousand two hundred and fiftyForeign nameAxial Flow Check ValvePressChina Standard PressThe number of pagesPage 6FolioSixteenBrandBeijing Jinsong Jian Da Science and technology books Co., Ltd.Axial check valve (GB/T 21387-2008) was published by China standard press.
Q:When are the fire dampers and check valves located on the ventilation pipe?
8.5.5 vertical exhaust lines for kitchens, bathrooms, toilets, etc., should be taken to prevent backflow or to set fire dampers on the branch pipe.In addition, there are similar provisions in the code for fire protection in architectural design, which are not stated.
Q:What does "H" for H42W check valves mean?
Valve type codeGate valve ---ZStop valve ---JThrottle valve ---LBall valve ---QButterfly valve ---DDiaphragm valve ---GPlug valve ---XCheck valve and valve ---HSafety valve ---ARelief valve ---YSteam trap ---SConnection form codeInternal thread ---1External thread ---2Flange ---4Welding ---6Yes, clip ---7Clamp ---8Jacket ---9Check valve and valve structure of codeLifting typeA.
Q:The Haier electric water heater has a check valve to prevent water from flowing backwards
Landlord that is not a check valve, it is a relief valve, the internal pressure of electric water heater is too large, from the relief valve relief pressure, pressure relief will flow from above, and there is relief valve installed at the entrance of cold water.

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