Resilient seated double eccentric butterfly valve
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1.Technical Date:
Size: DN100-DN4000
Nominal Pressure: PN10/PN16
Operation Temperature: -10°C~150°C
Suitable Medium: Water,Sewage,Seawater,Gas,Food,Oils,etc.
2. Standard
Design Standard: GB/T 12238-2008
Structural Length: GB/T 12221-2005
Top Flange dimensions: ISO5211
Face to face dimensions: GB9112,DIN2501,BS4504,ISO2084,ANSI125
Type of connection: Flange Type
3.Feature:
Product adopts double eccentric structure, the disc sealing ring at the instant of the opening and closing should quickly out of the seat, which can effectively avoid the valve opening and closing process, the seat of the valve plate interference and friction, extend the life of the seal ring. The valve plate adopts the structure light truss over current or pressure on the pressure surface streamline structure design, wide open, the seat effective circulation channel cross-sectional area is big, can greatly reduce the flow resistance of butterfly valve, at the same time guarantee the overall structural strength.
Copper brass seat is surfacing on the valve body, ensuring that no leakage in use. Copper seat smooth level off, solid, corrosion resistance is strong, coaxial degree is high, low surface roughness, cooperate with the seal of the valve plate seal.
Valve shaft adopts two stages, increases the flow area of the flow channel, the valve stem is not easy to hang for sundry, valve spindle insert valve body, valve plate length not less than 1.5 times the diameter of axle, the shaft end due and axial positioning, prevent the butterfly plate used in industrial and mining conditions in axial string.
Butterfly plate and the valve shaft connected with 1:50 taper pin, and seal the pin with a ring, to ensure the stability of the pin connection and sealing. Taper pin with high strength stainless steel materials.
Valve plate seal to the "T" shape structure, the "T" ring material elastic sealing and not just at the same time, with flexible structure, seal with pressure self-tightening and seal pressure compensation function, positioning clamp screw can make rubber ring at the same time, prevent seal up, roll and rubber flabby bumps, make each sealing point sealing force equilibrium, seal wear less, the effect is good. Sealing ring by removing pressure ring can be directly in the line with adjustment, repair and replacement. Maintenance convenient quickly. And ensure the enough strength, pressure adjusting screw is divided into two groups, one group for compression screw, compression screw has limited pressure functions, a group of the adjusting screw, effectively adjust the seal position, guarantee the best sealing performance, and balance the force situation of every screw, compression screw with washer, prevent water impact vibration and make the screw loose fall off.
- Q: Butterfly valve common faults and treatment methods?
- Three, summary:Only familiar with every detail of circulating water pump outlet valve and butterfly valve equipment, timely and thorough maintenance and strict debugging, to ensure the safety and reliability of equipment operation, to ensure the healthy and orderly operation of equipment.
- Q: What does the model D373H-16C of butterfly valve mean?
- D373H-16C said: D type butterfly valve butterfly valve 3 said, said 7 of the turbine, said clip, 3 said the three eccentric (swash plate), 16 C nominal pressure, said carbon steel. In fact, if you want to understand this, to understand the valve 3.07ghz, later met have to be attached to the valve. 3.07ghzModel for valves, valve number indicates valve type valve should normally be that type, drive type, connection type, structural features, nominal pressure, sealing surface material, body material and other factors. Standardization of the valve type of valve design, selection, distribution, provide more convenient. The type of valve types and materials are more and more more models of the preparation of the valve will become more and more complicated. Although the preparation of our valve type unified standard, but gradually can not meet the needs of the valve industry. At present, the valve manufacturer usually adopt a unified numbering; not uniform numbering, the manufacturer can make out no.methods according to their own situation. Unit two unit three unit four unit five unit six unit seven unit
- Q: Seat has said to the previous owner that the car needs a new air mass meter and dump valve.I am putting a new air mass meter on it.Does it have a dump valve.I know very little on this subject.
- every turbo will have a dump valve(waste gate) to regulate the boost to the engine Dump valves are fitted to the engines of turbo charged cars and sit between the turbo outlet and the throttle body. When transitioning from a boosted state to a closed throttle state (as in between shifts), due to inertia, the turbo continues to pressurize air, but the closed throttle prevents the compressed air from entering the engine. In this case the pressure exceeds the preset spring pressure in the dump valve and the excess pressure is bled off to atmosphere. Even with a dump valve the compressed air acts as a brake on the turbo (slowing it down), because the pressure on the backside of the turbo is at a higher pressure than on the front side (and the air actually wants to flow through the turbo backwards). A blowoff valve is a more elegant solution to this problem by allowing the turbo to freewheel when the throttle is closed (equalizing the pressure on both sides of the turbo). Unlike a dump valve a blowoff valve can be used at multiple boost settings without reconfiguration. Blowoff valves are sometimes incorrectly called dump valves because they serve a similar function, but they are very different solutions to the same problem.
- Q: Function of signal butterfly valve in fire sprinkler system
- The signal butterfly valve is generally installed in two parts: floor level, dry pipe, flow indicator front end, trunk pipe, wet alarm valve, front end.Floor level pipe installation is a function of the signal valve, when the floor spraying system needs repair, close the valve, open the end of the floor drain, emptying the water in the spray system, maintenance; two is the sprinkler system is not allowed inside water, when the butterfly is closed, will transmit a signal to the the fire alarm system, fire alarm system receives a monitoring signal (so called signal butterfly valve), fire sprinkler system that the floor is anhydrous state, fast repair.Wet alarm valve at the front of the signal butterfly valve with the main floor of the main role of the butterfly valve, first, maintenance, and two is the prompt sprinkler system, there is a signal butterfly valve closed, should be repaired as soon as possible.
- Q: What does the butterfly valve model d344h, d345h, d346h, d347h mean?
- According to the international standard of the letters and numbers apart to explain D344H D is a unit of butterfly valve, two unit 3 is driving mode: turbine, three unit 4 connection: flange connection, four unit 4 Structure: seal type linkage, five unit H sealing material: Cr13 stainless steelD345H compare yourself to the above. Unit 5 four is a sealed, single eccentric structureD346H four unit 6 is an unsealed center vertical plateD347H four unit 7 is unsealed double eccentricIn general, there is only one difference between them: the structural form is different!
- Q: What's the difference between cut-off valve, gate valve and butterfly valve? What's the difference in the working principle?
- Stop valve, leak small, gate valve, leak big, butterfly valve switch fast
- Q: Butterfly valve model D373F-16C, ask God answers
- D butterfly valve, 3 turbo rotating, 7 pairs clip type, 3 eccentric F PTFE seal, 16 nominal pressure 1.6MPA, C valve body material, carbon steel
- Q: Who can give me a download UG butterfly valve, needle valve, diaphragm valve standard model address, Japanese standard, American Standard.
- Support many 3D CAD format, such as the commonly used UG, Pro/E, SolidWorks......As for the butterfly you said, don't post the link up, the standard JIS, American Standard ANSI, German standard DIN are.You use Baidu Search "LinkAble PARTcommunity", after the open registration, CAD format, such as UG, ASAHI and then to find the manufacturer home page, which is the valve, you said the Japanese standard, German standard, American Standard valve basically all.
- Q: valve adjustment 2001 chev prism 1.8L
- valve adjustment . you need to know the fire order. the gage between the stem. rotators the cranshaft. it could be cold start. cylinder need to be bottomed center.
- Q: What's the difference between electric butterfly valve and electric two way valve?
- The valve can only be fully open or fully closed, so the controller only need a 1/4 angle stroke in control, so you only need to open and closed position control. The butterfly valve can be opened and closed at any position within 90 degrees, so a positioning device is needed on the electric head. If the valve is used (such as double eccentric butterfly valve or three eccentric), due to the eccentric effect, need to always have a butterfly valve opening and closing positions to control the torque of Disc Edition in the stem, especially in the valve closed to non preferred direction needs a torque to ensure the butterfly valve, which requires control device to provide a torque to make butterfly valve position or seal. Therefore, the ball valve only needs to drive device to meet the opening and closing, two positions can be, and butterfly valve but in the switch of the whole trip in the control.
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Resilient seated double eccentric butterfly valve
- Ref Price:
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- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
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- Supply Capability:
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