Ball Type Check Valve Ductile Iron

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Product Description:


Ball Type Check Valve Ductile Iron

*Good quality with reasonable price.  

*Qick deliver time and enough store of valves.

*Many types to choose.


Ball Type Check Valve Ductile Iron GGG40 DIN Standard

Design Standard:

Face to Face DIN3352-F1

Flanged Ends BS EN1092-2

Main Parts and Materials

No. Parts Name Material

1 Valve Body/Bonnet Ductile Iron GGG40/GGG50

2 Plug Malleable Cast Iron

3 Ball sealer Carbon steel A3+NBR

4 Seal O-ring NBR

5 Hex bolt Carbon Steel Zinc Plated 45#



flanged Swing Check Valve

size: 1/2"-42"

material: steel


Guarantee: 18months

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Q:What are the main types of check valves?
Two, noun explanation: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:What's the difference between the h76x check valve h77x?
H76x check valve h77x distinction: h76x check valve is a clamp type double valve swing structure, h77x is the clamp butterfly type structure.
Q:How can the check valve at the flue port of the range hood be changed or cleaned?
First, the smoke control valve at the junction of the original building is installed, and this demolition does not have nothing to do with the property.The check valve on the exhaust flue has its function, but also increases the resistance of the exhaust air, and the more the number on the flue, the greater the resistance. And in use, often due to sticky oil fumes, a long time, it will be soiled. So, in the decoration will not be retained in the main flue that check valve, it should be removed, (during the renovation, in the district garbage can be seen everywhere) Only use the machine belt, because its location can be cleaned regularly.Two, according to what your text describes, it should be that the check valve on the main flue is stained. Because in addition to this small piece will cause disruption, there is no other blocking factors. It is unlikely, because the hose folded into 90 degrees into the shed, the naked eye can not see it. But you can use wire to touch it, and if you can push it open, you can try again. However, it is estimated that the shed is still of little significance.The kitchen ceiling is usually plastic buckle or aluminum pinch plate, demolition does not cost anything.It is a reminder: remove the check valve, hose in the crossing installation process should be carefully done, it is best to buy a duct flange, glass sealant with a circle, and then buckle in the flue, the hose into the flange, carefully wrapped with tape, confirmed that no leakage shall prevail this is because, in the shed, and then deal with trouble ah.If the check valve is well connected with the flue port, it is possible to remove the check plate (plate) and make it easier to use the original chassis.
Q:Why is the intelligent water meter equipped with a check valve, still can not prevent the water meter idling?
4. conclusionMany reasons for water rotation, but on the whole can be divided into two: one is the subjective factors, namely subjective causes, such as construction acceptance, human responsibility caused by Water Leakage, original gas gathering, which can strengthen the construction management, improve the staff's work and to improve the level of responsibility. The two is the objective factors, the main characteristics of the water itself, by the characteristics of pipeline and the level of technology development in the external objective factors, on the one hand to work in the future continue to explore the improvement will be improved.
Q:What is the difference between the check valve and the check valve?
The same thing, the different name, the appraisal finishedPrices vary greatly, probably due to specifications, material, performance and other differences
Q:What's the difference between the cut-off, check, check, and stop valves three? Better picture,
Stop check valve: when the handwheel is rotated so that the valve stem rises, the disc does not rise together, but only the valve clack is released.
Q:Does the check valve differ in front of the water meter and press it behind the water meter?
According to the specification, check valve (check valve) should be installed behind the watch. If it is placed in front of the meter, it will cause the meter to be inaccurate and damage the meter parts.
Q:What is the air pipe check valve?
One-way valve, one-way flow, to prevent negative pressure reflux.
Q:Does FOTILE hood have check valve?
If necessary, you can contact the aftermarket directly, technicians can bring home Oh ~!
Q:What does the check valve h44t-16 mean?
Flanged swing check valve [H stands for check valve, 4 represents flange, 4 represents structural form (swing type), T represents internal copper alloy, and 16 represents pressure 16 pressure. I hope it will help you
Our products are in accordance with different standards, such as API, DIN, JIS, BS, and GB, as well as non-standards. We also provide OEM products according to client requirements. Our products are widely used in oil refinery, petroleum, chemical plant, power station, natural gas, and civil industry. We have obtained ISO9001 International Quality Management System Certificate.

1. Manufacturer Overview

Location Jiangsu,China
Year Established 2001
Annual Output Value US$10 Million - US$50 Million
Main Markets North America
South America
Eastern Europe
Southeast Asia
Mid East
Eastern Asia
Western Europe
Company Certifications ISO9001

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Language Spoken: English
b)Factory Information  
Factory Size:
No. of Production Lines Above 10
Contract Manufacturing OEM Service Offered
Product Price Range High and/or Average