Forged Flanged End Ball Valve/ Válvula de bola con bridas Fin forjado

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Shanghai
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10 set
Supply Capability:
100 set/month

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Packaging & Delivery

Packaging Detail:Standard Export and Sea-worthy Plywood Case
Delivery Detail:30 Days

Specifications

NPS 2"~36" 
ANSI CLASS 150~2500 
MATERIAL: WCB, LCB, CF8, CF8M, CF3, CF3M, A105, LF2, F304, F316, F304L, F316L

Trunnion Ball Valve

NPS 2"~36" 
ANSI CLASS 150~2500 
MATERIAL: WCB, LCB, CF8, CF8M, CF3, CF3M, A105, LF2, F304, F316, F304L, F316L 
DESIGN STD: API 608, API 6D, BS 5351 
FACE TO FACE STD: ASME B16.10, API 6D 
END CONNECTION STD: ASME B16.5, ASME B16.47, ASME B16.25 
TEST STD: API 598, API 6D, BS 6755 

 

1.Anti-fire safe design.Anti-static device 
2.Free leakage of body Sealed construction 
3.Double block&bleed. 
4.Extension stem.

1.Bow-out proof stem

 

For the purpose of preventing the stem from flying off  resulting in abnormal rising of the inner pressure of valve,shoulder is fixed at the lower part of the stem.In addition,in order to prevent leakage resulting from burnout of packing set of the stem in a fire,thrust bearing is set at the contact position of the shoulder at lower part of the stem and valve body.Thus an inverse seal seat is formed which will prevent leakage and avoid accident.

 

2.Anti-fire safe design

 

When the trunnion ball valve be used normally,its sealed by seat and ball surface,seat retainer sealed by O-ring and body,this is soft sealed and reliable sealing.When the seat and O-ring are burnt,the seat retainer and body will be sealed by expanded graphite.Thus act anti-fire safe purpose.

 

3.Anti-static device

 

In order to prevent friction among ball,stem and PTFE that generates static electricity which may light the combustibles and explosives that cause an accident,in this ball valve,static-conduction spring is set between the stem and the ball,the stem and the body.Thus static electricity is conducted to ground and system safety is secured.

 

4.Free leakage of body Sealed construction

 

The connective position of valve body and bonnet is double sealed by gasket and O-ring,on this base,such factors as fire,high temperature,shock and uneven opening or closing of the torque all can't induce external leakage.

 

5.Low torque in operation

 

The self-lubricated bearings are installed at the friction of stem,resulting in wear resistance,fiexibility of operation and low torque.

 

6. Double block&bleed(DBB)

 

When ball is full open or close position,the transmitter substance in center cavity of body can be released by drainage and emptying devices.In addition,the over loaded pressure in the center cavity of valve can be  released to low pressure end by self relief seat.

 

7.Emergency sealing

 

Compound injection holes are designed and compound injection valves are installed at locations of stem/cap and body support of side valve.When sealing of stem or seat is damaged to induce leakage,the compound can be used to do the second time sealing.A concealed check valve is installed in side of each compound injection valve to prevent compound from out flowing due to the action of transmitter substance.The top of the compound injection valve is the connector for fast connection with compound injection gun.

 

8.Extension stem

 

For the underground installed valve,the stem can be lengthened and for the convenience of operation the corresponding compound injection nozzle and drainage valve can be extended to the top of valve.

 

9.Automatic body cavity relief

 

When the body pressure going up un-normally as the unstable factor,the trunnion ball valve downstream seat will be pushed by un-normally pressure,and the release the unnormal pressure automatically,it doesn't damage to the sealing of upstream seat.

 

10.Various driving types

 

The top pad of valve designed according to ISO 5211,which is convenient for connection and exchange of various drivers.The common driving types are manual,electrical,pneumatic and pneumatic/hydraulic.


FAQ

We have organized several common questions for our clients,may help you sincerely:

①How about your company?

A world class manufacturer & supplier of castings forging in carbon steel and alloy steel,is one of the large-scale professional investment casting production bases in China,consisting of both casting foundry forging and machining factory. Annually more than 8000 tons Precision casting and forging parts are exported to markets in Europe,America and Japan. OEM casting and forging service available according to customer’s requirements.

②How to guarantee the quality of the products?

We have established the international advanced quality management system,every link from raw material to final product we have strict quality test;We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.

③How long can we receive the product after purchase?

In the purchase of product within three working days, We will arrange the factory delivery as soon as possible. The pecific time of receiving is related to the state and position of customers.Commonly 7 to 10 working days can be served.

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Q:What does W represent in copper ball valve Q11W-16T?
Valve sealing materials are all valves of the body material, sealing surface material code with "W" said
Q:What's English for ball valves?
Mechanical introductionThe main characteristics of the electric ball valve of the valve itself is compact, easy operation and maintenance for water, solvents, acids, and natural gas general working media, but also applies to poor working conditions of media, such as oxygen, hydrogen peroxide, methane and ethylene. Ball valve body can be integrated, or can be combination. Ball valve in the pipeline is mainly used to do cutting, distribution and change the direction of flow medium. Ball valve is a new type of valve widely adopted in recent years. The resistance of fluid is small, and its resistance coefficient is equal to that of pipe of same length.The ball valve is simple in structure, small in size and light in weight. Tight and reliable, at present, the ball valve sealing surface materials widely used in plastic, good sealing, vacuum systems have been widely used. Convenient operation, open and close rapidly, from fully open to fully closed as long as 90 degree rotation, facilitate remote control. Easy maintenance, ball valve structure is simple, the sealing ring is generally movable, disassembly and replacement are more convenient. In full open or full closed, the ball and valve seat sealing surface and dielectric isolation, the media through, will not cause the valve sealing surface erosion. Wide range of applications, from a few millimeters to a few millimeters, large to a few meters, from high vacuum, high pressure can be applied.It is generally believed that the ball valve is suitable for direct opening and closing, but the development of the ball valve has been designed to make it throttling and controlling the flow. The main features of the valve itself is compact, easy operation and maintenance for water, solvents, acids, and natural gas general working media, but also applies to poor working conditions of media, such as oxygen, hydrogen peroxide, methane and ethylene. Ball valve body can be integrated, or can be combination.
Q:Is the ball valve ball valve?
Therefore, strictly speaking, eccentric hemisphere valve ball valve, butterfly valve is more like a ball valve.
Q:Gate valve, butterfly valve, ball valve advantages and disadvantages? What other commonly used valves?
Commonly used valves are: gate valve, globe valve, check valve, ball valve, butterfly valve, safety valve, regulating valve, plug valve and so onValve: valve is closed parts (RAM) vertical movement of the valve in the pipeline along the channel axis, used primarily as a medium cut that open and close use. In general, the valve can not be used as a regulation flow. The utility model can be applied to low temperature pressure, and can also be applied to high temperature and high pressure, and can be made according to different materials of the valve. But the valve is generally not used to transport mud and other media pipeline.Advantages: fluid resistance is small; the opening and closing torque needed by the smaller; can use the ring pipe flow to the two direction in the medium, that is to say the unrestricted flow of medium; the fully open, the sealing surface by the erosion of the working medium is smaller than the cut-off valve; the body has the advantages of simple structure, manufacturing good craft; the structure of relatively short length.Disadvantages: the size and height on the larger required installation space is larger; in the process of opening and closing, a relative friction sealing, friction is large, even scratch phenomenon caused by easily at high temperature; the valve has two sealing surface, to processing, polishing and maintenance of some increase the opening and closing time difficult.
Q:Would you please tell me why the spring is placed in the valve seat? What's the function?
Valve seat on both sides should be added spring, the seal pushed to the valve core to seal up, so put the spring.
Q:What's the diameter of the 4 point ball valve?
4 points is 0.4 inches, 1 inches =25.4 mm.Then the 4 point ball valve diameter is 10.16mm.
Q:Q4110 what is the ball valve? What does each number stand for?
It's Q41-10Q- stands for ball valves; 4- stands for connecting flanges; 1- is straight through floating ball; 10 means valve bore 10If it's Q4110, you're not sure
Q:Ball valve, PTFE pad inappropriate choice, is not easy to bad ah?
Yes, but not in a high temperature for a long time, like more than 180 degrees centigrade. Because the gasket can not be used after deformation, it will cause valve leakage.
Q:For the master enlighten Q47 ball seat spring hole number is determined by how
Force = spring stiffness (kg/mm) * compression volume (mm)Number of work cycles of spring stiffness = line diameter *1000/C 3 timesC= spring middle diameter / line diameterSpring diameter = spring outside diameter line diameter
Q:How much pressure DN65 ball valve?
16-40 is normal pressure. How much pressure do you want?

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