DF614 Wafer Type Butterfly Valve with two shaft-manufacture,factory,supplier from China

(Total 10 Products for DF614 Wafer Type Butterfly Valve with two shaft)
Size:DN25-DN1200  Material:Body:Cast Iron/Ductile Iron/Cast SteelDisc:DI+Ni/SS304/SS316/AL-BZ/CF3M/SS2205/SS2507Stem:SS416/SS304/SS316/17-PH/Monel K500Seat:EPDM/NBR/VITON/PTFE/HYPALONOperation:Handlever /Gearbox/Electric / Pneumatic Standard:Design Standard:EN 593 , MSS SP67   API 609  BS5155Inspection & Test:API 598  ISO 5208  EN 12266End Standard:ANSI B16.1 CL. 125LB /B16.5 CL.
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100% bi-directional tight shut-off. Installation without restrction in direction of flow.Reduced weight and overall dimensions.Low pressure loss and reduced energy costs.
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Butterfly valve offers economical,efficient,and reliable service for grooved end piping applications.It is easily installed with two grooved end couplings.
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Standard:Design Standard:EN 593 , MSS SP67   API 609  BS5155Inspection & Test:API 598  ISO 5208  EN 12266End Standard:ANSI B16.1 CL. 125LB /B16.5 CL.
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The principle of the anti-condensation butterfly valve is due to the corrosion resistance of the aluminum alloy body, which is light in weight and easy to install; the spherical structure around the butterfly plate is helpful to reduce the friction torque with the valve seat; the butterfly plate and the valve shaft are made of stainless steel, which increases The anti-corrosion ability also plays a role in reducing heat conduction and preventing the temperature of the driving device from being too low; the housing of the driving device is made of aluminum alloy, which is light in weight and fa
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100% bi-directional tight shut-off. Installation without restrction in direction of flow.Reduced weight and overall dimensions.Low pressure loss and reduced energy costs.
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Resilient seated butterfly valve is a double flanged design which may be used for dead-give up carrier .this butterfly valve collection has some of the layout functions and benefits including high cv rankings ,minimum elements exposed to the road media ,greater reliability and a validated report of long provider life .a primary design advantage of this valve product traces is international compatibility.Technical Parameters:SizeDN32-DN600DN650-DN2000Working pressure16Bar10BarShell24Bar15BarSeal(Air)6Bar6BarOperating Temperature-40℃~+160℃Operating EnvironmentBallast   and bilge system
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The pneumatic butterfly valve is composed of a pneumatic actuator and a butterfly valve. The pneumatic butterfly valve is a pneumatic valve that uses a circular butterfly plate that rotates with the valve stem to realize the opening and closing. It is used more and more on medium-bore pipes. Pneumatic butterfly valve classification: stainless steel pneumatic butterfly valve, hard seal pneumatic butterfly valve, soft seal pneumatic butterfly valve, carbon steel pneumatic butterfly valve.
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Butterfly plate outer circle using spherical form, improve the sealing performance and prolong the service lifestyles of the valve, with stress open and close extra than 50,000 times nonetheless preserve 0 leakage. The sealing components may be changed, and the sealing is dependable to achieve -manner sealing.   butterfly plate may be spraying coating in line with user necessities, which include nylon or ptfe.   the valve may be designed as flange connection and clamping connection.  The using mode can choose guide, electric or pneumatic.Material:Bo
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Advantages:1. easy and quick to start and close, labor-saving, low fluid resistance, can be operated frequently2. Simple structure, small size, short structure length, small volume, light weight3. start and close torque is small, because the butterfly plate on both sides of the shaft is basically equal to the action of the medium, and the direction of the torque generated is opposite, so it is relatively labor-saving4. The material of sealing surface generally adopts rubber, plastic, so the low pressure sealing performance is good.5.
Electric butterfly valve means that the butterfly valve is equipped with an electric actuator, which controls the opening and closing of the valve through the electric energy provided by the power supply, so as to realize remote centralized control and automatic operation. Electric butterfly valve can be divided into flange type and disc type according to the connection method, which is an important execution unit in the field of industrial automation control.
FIRST:The difference between butterfly valve has a pin and without pin: Price: the without pin butterfly valve is more expensive than the pin ones. Usage: WITHOUT PIN TYPE REDUCE THE RISK OF LEAKAGE.
Butterfly valve is a type of valve that uses a spherical butterfly plate as the opening and last component and turns with the valve stem to open, close and alter the fluid channel. the butterfly plate of the butterfly valve is set up in the diameter route of the pipe. in the cylindrical channel of the butterfly valve frame, the disc formed butterfly plate rotates around the axis of the valve stem at an perspective among 0 ° and 0 °. whilst the butterfly plate is at 0 °, the valve is closed, and when the butterfly plate is at ninety °, the valve is absolutely opened.
In production and life, the emergence of valves is that the utilization rate of their valves and accessories is getting higher and higher, such as check valves, check valves, electric butterfly valves, pneumatic butterfly valves, rubber soft joints, electric ball valves, one-way valves, and wafer butterfly valves. , filter, etc., which have brought great convenience to production and life.
The high-pressure pneumatic ball valve only needs to use the pneumatic actuator to rotate the air source by 90 degrees and a small rolling torque to be tightly closed. Completely equal valve body cavity provides medium with low resistance and straight-through flow path. It is generally believed that the ball valve is suitable for direct opening and closing applications, but recent developments have designed the ball valve so that it can be used for throttling and control systems.
Test valve refers to the hole and remaining elements of the circular disc and with the aid of its own weight and media stress generated motion to block the media float lower back valve.  automatic valve elegance, additionally referred to as test valve, one-way valve, backflow valve or isolation valve.  disc movement is split into lifting and swing.  elevate test valves are comparable in creation to globe valves besides for the stem that drives the disc.  the medium flows in from the inlet quit (decrease side) and flows out from the hole give up (higher aspect).  valve
1. Handwheel, handle and transmission mechanism are not allowed to be used for lifting, and collision is forbidden. 2. The double gate valve should be installed vertically (i.e. the valve stem is in the vertical position and the handwheel is at the top). 3. The gate valve with bypass valve should be opened before opening (to balance the pressure difference between inlet and outlet and reduce the opening force). 4. Gate valve with transmission mechanism shall be installed according to the product instruction manual. 5.
Different principlesButterfly valve, also known as flap valve, is a kind of regulating valve with simple structure. It can also be used for on-off control of low-pressure pipeline media, and it mainly plays the role of cutting off and throttling. When the butterfly valve is fully opened to fully closed, it is usually less than 90. The butterfly valve and the butterfly rod have no self-locking ability. In order to position the butterfly plate, a worm gear reducer should be installed on the valve stem.
1. Butterfly valve has the characteristics of simple structure, small volume, light weight, low material consumption, small installation size, quick switch, 90 reciprocating rotation and small driving torque, etc. It is used to cut off, connect and adjust the medium in the pipeline, and has good fluid control characteristics and closing and sealing performance.2. Butterfly valves can transport mud, and the liquid accumulated at the pipe mouth is the least. Under low pressure, good sealing can be achieved. Good adjustment performance.3.