TKOK VALVE

Focus On Triple Offset Butterfly Valve 

Category: Valve knowledge

Selection and application of triple offset butterfly valve

Selection and application of triple offset butterfly valve Eccentric butterfly valves and other butterfly valves have outstanding advantages and are widely used in all aspects of life and work to meet various requirements.With the continuous development of eccentrically sealed butterfly valve technology, its application space is more and more extensive. Application of Double Eccentric Sealed Butterfly Valve Double eccentric sealed butterfly valve is designed with eccentric structure. Its main structure consists of valve body, butterfly plate, seat, stem and driving mechanism. The valve seat is detachable. According to the physical and chemical media characteristics of different media, corresponding corrosion, light and aging resistant materials can be selected. It can be widely used in water supply and drainage, sewage, building, air conditioning, Petroleum and chemical industry.Fluid

Read More »

Introduction to Flanged Butterfly Valves

Introduction to Flanged Butterfly Valves Flanged butterfly valves introduce the concept of self-sealing design, in which the patented design withdrawal pin structure is used to connect the disc to the valve shaft.The main features of the valve are reliable sealing, bidirectional sealing, tight connection, no loosening, and long service life of the valve.Its features are as follows: Bi-directional seal Conventional butterfly valves usually fail to seal well under working pressure in opposite direction (unfavorable sealing direction) due to their structural and other reasons. At present, there is no mandatory requirement for bidirectional sealing in relevant national standards.This is due to: Adopt self-sealing design concept The disc sealing ring is directly embedded in the disc with rubber in a zigzag shape and does not need to

Read More »

Structural characteristics of metal hard seal butterfly valve

Structural characteristics of metal hard seal butterfly valve Metal hard seal butterfly valve is mainly composed of valve body, butterfly plate, valve shaft, valve body sealing ring, butterfly plate sealing ring, shaft sleeve, self-lubricating bearing and driving device. The high performance metal hard seal butterfly valve drives the valve shaft to rotate through various driving devices, and drives the butterfly plate to rotate within 90 ° through the pin shaft, so that the butterfly plate is in the open or closed state, so as to achieve the purpose of connecting or cutting off. It is widely used in metallurgy, hydropower, thermoelectricity, heating, urban water supply and drainage, farmland irrigation and drainage and other industries. The applicable medium is gas, steam, air and water, etc. in

Read More »

Types and classification of butterfly valves

Types and classification of butterfly valves Butterfly valve according to the structure can be divided into offset plate, vertical plate, inclined plate and lever type. According to the sealing form, it can be divided into two types: relatively sealed type and hard sealed type. The soft seal butterfly valve generally adopts rubber ring seal, while the hard seal butterfly valve usually adopts metal ring seal. According to the connection type, it can be divided into flange connection and pair clamp connection. According to the transmission mode, it can be divided into manual, gear transmission, pneumatic, hydraulic and electric. There are many kinds of butterfly valves, and in special working conditions, the corresponding butterfly valve products are also different. Therefore, for this kind of valve, we

Read More »

Advantages and structure diagram of butterfly valve

Advantages and structure diagram of butterfly valve The opening and closing part of butterfly valve is a disc-shaped butterfly plate, which rotates around its own axis in the valve body, so as to achieve opening and closing or adjustment. Butterfly valve is usually less than 900 from full open to full close. Butterfly valve and butterfly rod have no self-locking force. In order to position butterfly plate, worm gear reducer should be installed on valve rod. The adoption of turbine reducer can not only make the disc have self-locking ability, make the disc stop at any position, but also improve the operation performance of the valve. The industrial butterfly valve is characterized by high temperature resistance, high pressure range, large nominal diameter, carbon steel valve

Read More »

Installation instructions and steps of wafer butterfly valve install

Installation instructions and steps of wafer butterfly valve The wafer butterfly valve is one of the most common types of valves in industrial pipelines. The structure of the clip on butterfly valve is relatively small. Just put the butterfly valve in the middle of the flanges at both ends of the pipeline, and use the stud bolt to pass through the pipeline flange and lock the clip on butterfly valve, then the fluid medium in the pipeline can be controlled. When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the only resistance when the medium flows through the valve body, so the pressure drop generated by the valve is very small, so it has good flow control

Read More »

Structure principle and application analysis of butterfly valve

Structure principle and application analysis of butterfly valve Butterfly valve (also known as flap valve) is a kind of regulating valve with round disc or disc as closing part, which is mainly composed of valve stem, butterfly plate and sealing ring. The valve body is cylindrical with short axial length and built-in butterfly plate. The butterfly plate of butterfly valve is installed in the diameter direction of pipeline. In the cylindrical passage of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation angle is 0 * ~ 90 ° When it is rotated to 90, the valve is fully open. The butterfly valve is simple in structure, small in volume and light in weight, and only consists of a

Read More »

High standard special material Hastelloy butterfly valve

High standard special material Hastelloy butterfly valve High standard special material Hastelloy butterfly valve, shown in the figure above is flange type, pn25-dn 150 & 250 Hastelloy butterfly valveValve, Hastelloy, just like stainless steel, there are many materials under it, hc276 is more common, and it is also used more frequently Many.The main chemical composition and mechanical properties of Hastelloy C276 are as follows Chemical composition:C :≤0.12Mn:≤1.00P :≤0.04S :≤0.03Si :≤1.00Cr: 15.5-17.5.Ni: clockMo : 16-18Fe : 4.5-7.5V : 0.2-0.4W : 3.75-5.25Mechanical properties:Tensile strength: ≥ 495Yield: 2275Extension: 24

Read More »