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: Why use special flanges for butterfly valves?
- Butterfly valve to use special flange, butterfly valve itself is because of the structure of the decision, the butterfly valve to clip type connection, this pair of clamps is a special flange.Also known as butterfly valve, control valve has a simple structure, can be used for low pressure pipeline valve switching control is closed parts (disc or disc) is a disk, around the valve axis to achieve the opening and closing a valve, the valve can be used to control the flow of air, water, steam steam, all kinds of corrosive medium, mud, oil, metals and radioactive liquid media and other types of fluid. On the pipeline, mainly from cutting and throttling. Butterfly valve headstock is a disc shaped disc, in the valve body around its own axis of rotation, so as to achieve the purpose of opening or closing or regulation.
- Q: What's the size of the signal butterfly valve sleeve?
- The signal valve of the fire door (not in the signal valve shutter doors, fire signal valve use: top fire signal butterfly valve with the valve opening and closing signal device, when the valve is closed by 25% (open degree 4/1), the signal device output signal was mistakenly closed to the fire control center. Therefore, this butterfly valve is the best matching product of automatic fire sprinkler system.
- Q: How do you draw the butterfly valve in the engineering drawing?
- Butterfly valve there are many kinds of painting, according to the design institute out of the icon, below we together to understand the icon, which has the butterfly drawing.
- Q: What's the difference between D71X-16 and D71H-16 butterfly valves?
- First, model D71X model means that, on behalf of 7 representative D butterfly valve, butterfly valve connection form for clamp connections, 1 straight, X represents the seal in the form of soft sealing, the sealing surface usually NBR H metal seal is usually 2Cr13 16 represents the pressure of 16 kg pressure weldingJin Ya valve is the production of hard sealing butterfly valve or soft sealing butterfly valve line leader, what problems can ask their units, technicians will answer for you
- Q: What is the principle of butterfly valve and check valve? Any difference?
- Crown valve pressButterfly valve is butterfly valveThe check valve is a check valveButterfly valve is mainly switching functionThe check valve mainly stops the pipe from flowing backwardsThe two can only be said to be valvesThe others are different
- Q: Should I connect the butterfly valve before and after the pump? Or gate valve?
- The best pump outlet valve, because the valve opening control accuracy, no movement. Valve structure is strong, adjusting performance better than butterfly valve. The pump outlet needs constant switching and adjustment, so the pump outlet valve is suitable for gate valve.Life water system valve, it is best to choose the gate valve, strong and reliable, cut off the system to grasp. But the cost is higher, occupying more space.Choose 1 or 1.6, there is no principle requirements, because the water supply pressure of life is generally between 0.25-0.5MPA, can meet the requirements. Only 1.6 is more durable and stronger, but the price is higher.
- Q: What's the difference between butterfly valves and check valves?
- Butterfly valve is manual, only switch function.The check valve is an automatic valve, which prevents backflow of the pipe medium.
- Q: Which is expensive, butterfly valve?
- Butterfly valve is more common, less material and simple structure. Butterfly valve cheaper
- Q: Butterfly valve structure and working principle
- The clip type butterfly valve is connected with the two pipe flange with a stud bolt. The flange type butterfly valve is provided with a flange on the valve, and bolts are used to connect the flanges at the ends of the valve to the pipe flange.
- Q: butterfly valves d7a1x5
- D71x-1.6? Or D371X-1.6, do you need butterfly valves for production or butterfly valves? The question perplexed us all.
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Resilient seated double eccentric butterfly valve
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
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