Quick Details of Flange Ball Valve
Standard or Nonstandard:
Pneumatic , Motorized ,Electric ,Gear box ,Gas Over Oil ,
Carbon steel, Stainless steel, Duplex Stainless steel, Special Alloy.
Temperature of Media:
Oil, Gas ,Water ,Acid
2"- 48", DN 50-1200mm
Place of Origin:
API 6D, API 607 ,CE ,ISO 9001 , ISO 14001,
Packaging & Delivery of Flange Ball Valve
Plywood Case , Wooden Case
30 -120 days
Specifications of Flange Ball Valve
Size: 2"- 48", DN 50-1200mm
Pressure: 150 -2500LB, PN 10-400
Material: Carbon steel, Duplex /Stainless Steel, Special Alloy.
Usage/Applications of Flange Ball Valve
Side Entry Design, Top Entry Design.
Bolted Body Or Fully Welded Body.
Full Bore Or Reduced Bore.
Flanged End Or Welding End.
Double Block and Bleed.
Single Piston Effect, Double Piston Effect.
Automatic Internal Relief of Body Pressure.
Emergency Sealant Injection System.
Fire Safe Design. Antistatic Device.
Anti-Blowout Stem Design.
Body Vent Device.
Stem Extension for Underground Service.
Product Range of Flange Ball Valve
Size: NPS 2”~ 48” , DN 50-1200
Pressure Rating: Class 150 -2500 LB , PN 10~400
Design standard : API 6D , EN13942
Face To Face Dimension : API 6D , EN 558-1, EN 12982
Connecting Dimensions: ASME B16.5, ASME B16.47, ASME B 16.25, EN 1092-1, and EN 12627.
End Connection: Flange, BW.
Body Materials: Carbon steel, Stainless Steel, Duplex Stainless Steel, Special Alloy.
Medium: Natural Gas, Oil, Steam. Water.
- Q:What's the difference between a one piece ball valve and a two piece ball valve?
- Structural features of two piece ball valve:1, opening and closing without friction. This function completely solve the traditional valve because of the friction between the sealing surface and affect the sealing problem.2, top structure. The valve installed on the pipeline can be directly checked and maintained, which can effectively reduce the device parking and reduce the cost.3, single seat design. The utility model eliminates the problem that the medium of the valve in the valve is influenced by the abnormal voltage increase.4 、 low torque design. Special structural design of the valve stem, with only a small hand, the valve can easily open and close.5 wedge sealing structure. Valve is provided by the mechanical force of the valve stem, the ball wedge to the seat and seal, so that the valve sealing is not affected by changes in pipe pressure, in a variety of conditions, sealing performance has a reliable guarantee.6. Self-cleaning structure of sealing surface. When the ball roll off the seat when the fluid in the pipeline along the sealing surface of the sphere into 360 degrees evenly through, not only eliminates the high speed fluid on the seat of local scour, also washed away the sediment on the sealing face, achieve the purpose of cleaning.Shanghai Taitong valve ball valve, butterfly valve, gate valve....
- Q:What does "DN25 Q41F46-16C" mean?
- DN is nominal diameter, nominal diameter (or nominal diameter), that is, all kinds of pipe and pipe accessories of general diameter of 25 mm
- Q:Calculation formula of ball valve flow
- The sectional area of diameter of DN15, DN25 and DN50 is respectively:DN15:15*3.14/4=176.625 mm, 0.0177 square decimeter.DN25:25*3.14/4=490.625 mm, 0.0491 square decimeter.DN50:50*3.14/4=1962.5 mm, 0.1963 square decimeter.A pipe flow rate of V=4 M / s V=40 decimeter / s, and the 1 liter =1 cubic meter, the pipe flow respectively (cross-sectional area multiplied by the velocity):DN15 pipe: flow Q=0.0177*40=0.708 L / sec,It's 2.55 cubic meters per hour.DN25 pipe: flow Q=0.0491*40=1.964 L / sec,It's 7.07 cubic meters per hour.DN50 pipe: flow Q=0.1963*40=7.852 L / sec,It's 28.27 cubic meters per hour.Note: a flow rate must be given to calculate the flow rate, which is calculated in accordance with 4 meters per second. Reference: http://zhidao.baidu.com/question/77687541.html answer: good night dream | six | 2010-5-24 22:46It's 600 cubic meters / hour!Flow Q=600 m3 / h = 0.167m^3/sThe flow rate is V=4Q/ (3.1416D^2) = 4*0.167/ (3.1416*0.090^2) = 26.25 m/s, and the flow velocity is very large!It could be 600 cubic meters per day:Flow rate Q=600 m3 / day = 0.00694 m^3/sFlow rate V=4Q/ (3.1416D^2) = 4*0.00694/ (3.1416*0.090^2) = 1.09 m/s flow rate is normal.
- Q:Is the ball valve installed in a direction?
- Valve installation generally no direction required, any end of the valve can be mounted on the upper end. If the valve marked the direction, then it should be installed in the direction of tagging installed.
- Q:Why can't the ball valve be screwed?
- This is because the ball valve in the factory after the test pressure, after the ball valve pressure test, there is a vacuum, and the ball core and gasket pressed.When the pipe is loaded, the ball core and the sealing surface are slightly moved by the water pressure, so the taxi is opened. There is no vacuum in the inner part of the opening. Ball valve is good to use.A pressure test valve is not open for the first time.
- Q:In the wet alarm valve usually kept under working condition, alarm test ball valve state usually is closed or open?Because the alarm performance test on the pressure switch and hydraulic alarm, can be tested by open test ball valve, the bar working condition, the valve is closed or open? If so, if there is a police situation, if the police? If it does, it doesn't always call the police Seek expert advice.
- Should be normally closed, the test valve is only the experimental pressure switch and hydraulic alarm, water from the valve directly into the alarm line, the wet alarm valve does not move, but you open, it usually has been ringing
- Q:The valve nominal 1/2, 3/4 is how much?
- The 1 point is DN25 mm1/2 is DN15 mm3/4 is DN20 mm
- 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:How to distinguish between single and double ball valve?
- Single ball valve, pneumatic ball valve is a single short; double valve, double acting pneumatic ball valve is referred to as.Single acting pneumatic ball valve is open air, spring off; and double acting pneumatic ball valve, gas gas is closed.Single / double ball valve, is divided according to the actuator, the actuator has a single pneumatic actuator and double acting pneumatic actuator.Single acting pneumatic actuator Pneumatic actuator to more than double spring, loss of gas supply, the spring to reset actuator.For hazardous media or conditions requiring a safe position when the gas source is lost, a single action is recommended.Selection must be based on the size of the field air pressure to select the spring force, otherwise it may cause air pressure is less than overcome the spring force and can not drive the actuator.When the actuator is selected, the minimum spring force should be allowed to drive the valve normally, taking into account the gradual reduction of the spring force.
- Q:Stainless steel ball valve Q11F-10P 16P each letter meaning?
- Q ball valve, the first 1 representatives of second representatives of 1 screw connection, ball valve floating ball (ball valve floating ball and fixed ball, 7 ball, F fixed on behalf of) on behalf of PTFE- PTFE seal (PTFE PTFE), representing 10 of the nominal pressure valve is 10 kg (1Mpa), P represents the ball body material is 304 stainless steel.Shanghai blue forest control valve Co., Ltd.
BGV,is located in Yufa Industry and Development Zone in Daxing District, Beijing. It is an advanced technology manufacturing company and its operaton involves sciences,engineering and trade.
1. Manufacturer Overview
|Annual Output Value
||Below US$1 Million
||Mid East, Africa, Europe
2. Manufacturer Certificates
|a) Certification Name
3. Manufacturer Capability
||1% - 10%
|No.of Employees in Trade Department
||English; Chinese; Spain; Alabic
||Above 20,000 square meters
|No. of Production Lines
||OEM Service Offered; Design Service Offered
|Product Price Range