Resilient seated double eccentric butterfly valve

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Product Description:

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.



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Q:What are the uses and classifications of manually operated clip butterfly valves?
Manual to clip butterfly valve use: manual to clip butterfly valve butterfly plate installed in the pipe diameter direction.
Q:What is the national standard for clip butterfly valves?
GB/T 12238-2008 "flange and clip connection elastic seal butterfly valve"GB/T 26144-2010 flanged and clip on steel lined fluoroplastic butterfly valvesJB/T 8527-1997 "metal sealed butterfly valve"
Q:Does the wet alarm valve group need to install the signal butterfly valve?
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.
Q:What does "D341X-16Q" mean?What do D341-16Q letters and numbers mean for butterfly valves?
D - valve type code: Butterfly valve;3 - valve drive mode code: worm gear;4 - valve connection form code: flange;1 - valve structure type code: vertical plate type;X - seat sealing surface or lining material code: rubber;16 - nominal pressure value: PN1.6MPa;Q - body material code: QT400 - 15.
Q:What kind of butterfly valve is sd342x?
Sd342x: two-way double eccentric soft sealing butterfly valveS: two way pressureD: butterfly valve3: turbine operation4: flange connection2: double eccentricX: rubber sealProbably the shape is not so good in appearance,Double eccentric mostly elastic sealThree eccentric is multi-layer sealHope to be of help to youOpened valve Co., Ltd. on the production of butterfly valve
Q:What's the difference between turbine butterfly valve and manual butterfly valve?
Butterfly (Manual butterfly) butterfly plate installed in the direction of the diameter of the pipe. In the butterfly valve body cylindrical channel, the disc shaped disc rotates around the axis. The angle of rotation is between 0 and -90 degrees. When rotating to 90 degrees, the valve is fully open.Butterfly valve structure is simple, small size, light weight, only by a few parts. The utility model can be rapidly opened and closed only by rotating 90 DEG, the operation is simple, and the valve has good fluid control characteristics. When the butterfly valve is in the fully open position, the butterfly plate thickness is the only resistance when the medium passes through the valve body, so the pressure drop produced by the valve is very small, so the flow control characteristic is better. Butterfly valve has an elastic seal and metal seal, two types of seals. Resilient sealing valve. The sealing ring can be mounted on the valve body or attached to the periphery of the disc.
Q:How much is the Honeywell butterfly DN300?
Find the agent or find a reliable valve plant a lot of foreign brands are in Chinese OEM so find a reliable factory is relatively good service to keep up
Q:How can I get the fire signal butterfly valve?
1, the signal butterfly drive by the worm gear drive shaft and butterfly plate rotation, realize the opening and closing and control flow. 2, rotating the handwheel worm gear to the disc to open and close and adjust the flow to the handwheel clockwise rotation for the valve closed. 3, worm gear is arranged in the box body micro switch has two forms: A, in the gear box body is provided with open and close direction two microswitches, respectively, when the valve fully open and close action, connected to the control room "valve open" valve off "light source, the quasi it shows the state of the valve switch. B, in the driving device is arranged in the box body the microswitch (disc position close to 0 degrees), when the butterfly plate from 0 degrees to 40 degrees when the position of a micro switch, the output valve closed signal, 40 degrees to 90 degrees when the position of another pair of normally closed output valve opening signal. A cam that adjusts the touch microswitch and shows the different positions of the disc.
Q:What's the difference between a clip type turbine butterfly valve and a flanged turbine butterfly valve?
The clamp and flange are the two connections.The clip type is cheaper and the price is approximately 2/3 of the flange.The length of the clip type valve bolt is longer, and the requirement of construction accuracy is higher. If the flange on both sides is wrong, the bolt will be subjected to greater shearing force, and the valve will leak easily.
Q:Butterfly valve D71X-10 and butterfly D371X-10 what is the difference?
One is the turbine drive and the other is with the handle

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