Ball Type Check Valve Ductile Iron

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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#

 

Specifications

flanged Swing Check Valve

size: 1/2"-42"

material: steel

Certification:ISO9001,ISO14001,API609,CE0036

Guarantee: 18months

Q:Which side of the gate is the fire check valve in the pump room?
The check valve is installed between the shock absorbing flexible joint and the water outlet control valve at one side of the water outlet pipe of the water pump
Q:Check valve is 150, why not put 150 of the smoke pipe?
DN150 check valve, it is possible that the internal path is less than the required value of 5mm-10mm. Therefore, the 150 outer diameter of the smoke pipe is not up.
Q:What is the difference between globe and check valves?
1. check valve is called one-way valve, the role is to prevent fluid flow, can not be adjusted, can not be closed.2., the cut-off valve can be used to regulate flow, can be closed, can be closed.
Q:Butterfly check valve should be equipped with special flange for butterfly valve
No, with a special appearance Jansen point flange butterfly valve. It can barely be installed without special flanges
Q:Detailed distinction between backflow preventer and check valve
The backflow preventer consists of two separated check valves and a drain valve. Due to the local head loss of the check valve, the pressure in the middle cavity is always lower than the pressure at the inlet. This pressure difference causes the drain valve to be closed and the pipe is in normal water supply. In abnormal pressure (i.e., the outlet pressure is higher than that of the middle cavity), even if the two check valve can not reverse sealing, safety relief valve can automatically open the reverse water emptying, and the formation of air separation, ensure the health and safety of water upstream.Check valves are plain check valves, only one side seal. Backflow preventer is more expensive than ordinary check valve. Double protection and heavy protection!
Q:What are the differences between the vertical check valve and the horizontal check valve in function and principle?.
The vertical check valve and horizontal check valve are functionally and functionally indistinguishable.The difference between vertical check valve and horizontal check valve:Horizontal check valves, mounted in horizontal pipes, have the same shape as the globe valves; vertical check valves are attached to vertical pipes.Check valve is open and close parts, depending on the flow of medium and power to open or close, to prevent media backflow valve called check valve. The check valve belongs to the automatic valve, mainly used for one-way flow of medium pipe sleep, allowing only medium to flow in one direction, in order to prevent accidents.The check valve is divided into three kinds: lift check valve, swing check valve and butterfly check valve. The lift check valve can be divided into two types: vertical and horizontal. Swing check valve is divided into single, double valve and multi flap type of three. Butterfly check valve for straight through, more than a few kinds of check valve, in the form of connection can be divided into thread connection, flange connection and welding three.
Q:What is the function of the check valve installed in the water meter before entering the residential water?
Preventing water backflow is also considered from the point of view of water safety.
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 kind of check valve is used in the sewage pump of sewage treatment plant?
2. installation of pump outlet check valve*Swing check valves are generally mounted on horizontal pipes: for bore DN~80mm check valves, they can also be mounted on vertical or upward sloping pipes.*Straight through lift check valves shall be installed on horizontal pipes; vertical lift check valves must be mounted on vertical pipes and medium upward flow.*As the check valve is easy to damage, therefore, should be installed near the pump outlet valve, in the upper part of the check valve with a cut-off valve (general use of ball valve or gate valve), easy to overhaul.*To facilitate the relief of the check valve before disassembly, the relief valve shall be installed between the check valve and the shut-off valve.
Q:What does the H/F/P stand for in the check valve H41H/H41F/H41P?
The first H represents the check valve, the 4 represents the flange, and the 1 represents the lift type, and the second H represents the seat seal surface. The material is alloy steel or stainless steel. The P H41P said seating for boron steel
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
Africa
Oceania
Mid East
Eastern Asia
Western Europe
Company Certifications ISO9001

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a)Trade Capacity  
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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

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