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Butterfly Valve

PN10/16 CE certificate Ductile Iron Cast Iron Wafer or Lug Type Butterfly Valve Price List


Place of Origin:China
Brand Name:Jinhongda
Suitable media:water ,gas ,oil ,acid
Certification:ISO 9001-2008
Material:casing iron/ductile iron/wcb/stainless
Standard:API, ANSI, DIN ,EN ,BS ,GB,JIS
Minimum Order Quantity:1
Packaging Details:Buddle-bag,Pallet, wooden case, paper box or as customer's requirements
Delivery Time:To be negotiated
Payment Terms:transfer and letter of credit
Supply Ability:5000 Piece/Pieces per Month
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Description

Butterfly valve, also known as flap valve, is a regulating valve with simple structure. The butterfly valve that can be used for switch control of low pressure pipeline medium refers to a valve whose closing part (valve disc or butterfly plate) is a disc and rotates around the valve shaft to achieve opening and closing. The valve can be used to control the flow of air, water, steam, various corrosive media, mud, oil, liquid metal, radioactive media and other types of fluids. It mainly plays the role of cutting off and throttling on the pipeline. The opening and closing part of the butterfly valve is a disc-shaped butterfly plate, which rotates around its own axis in the valve body to achieve the purpose of opening and closing or adjusting.

微信截图_20230212135820

Features:

1. Small in size, light in weight, easy installation and maintenance.

2. Simple and compact construction, quick 90 degree on-off operation.

3. Minimized operating torque, energy saving.

4. Flow curve tending to straight line, excellent regulation performance.

5. Long service life, standing the test of tens thousands opening/closing operations.

6. Wide selection of materials, applicable to various medium.

Specifications

未命名-2


Nominal pressue (MPa)1.01.6
Nominal diameter(mm)50-100050-1000
Test pressureShell1.52.4
(MPa)Seal1.11.76
Applicable temperature150
Applicable mediumFresh water, Sewage, Sea water, Air, Vapor, Food, Medicine, Oils, Acids, Alkalis, etc.
Operating modemanual, worm gear, pneumatic, electric, etc.

Standards:

Design & ManufactureFlange ConnectionFace to Face DimensionTest & Inspection
MSS SP-67 API609 EN593DIN PN10/16/25; ANSI B 16.1 BS4504; ISO PN10/16 JIS B 2212/2213 BS 10 table D; BS 10 table EAPI609 ISO5752 series 20 BS5155API 598

Material:

No.Part NameMaterial
1BodyCarbon Steel/Stainless Steel/Cast Iron/Ductile Iron/ Al-Bronze
2DiscAl-Bronze/CF8M/Ductile iron/WCB
3SeatEPDM/PEFE/Buna/NBR/Hypalon
4StemCarbon Steel/Stainless Steel314/Stainless Steel316
5BushingPTFE/Lubricating
6O ringEPDM/PEFE/Buna/NBR/Hypalon
7PinSS316/SS416/SS304
Applications

The butterfly plate of the butterfly valve is installed in the diameter direction of the pipeline. The butterfly valve is simple in structure, small in volume and light in weight. It is only composed of a few parts. It can be opened and closed quickly by rotating 90 °. It is easy to operate. At the same time, the valve has good fluid control characteristics. When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the 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 characteristics.

If the butterfly valve is required to be used as flow control, the main thing is to select the correct size and type of valve. The structural principle of butterfly valve is particularly suitable for making large-diameter valves. The commonly used butterfly valves include wafer butterfly valve and flange butterfly valve. Wafer butterfly valve is used to connect the valve between two pipe flanges with stud bolts. Flange butterfly valve is used to connect the flanges on both ends of the valve to the pipe flange with bolts.

As a component used to realize on-off and flow control of pipeline system, butterfly valve has been widely used in many fields such as petroleum, chemical, metallurgy, hydropower and so on. Among the known butterfly valve technologies, the sealing forms are mostly sealing structures, and the sealing materials are rubber, polytetrafluoroethylene, etc. Due to the limitation of structural characteristics, it is not suitable for high temperature, high pressure, corrosion and wear resistance industries.

Competitive Advantage

Construction features

1. Accord with GB standard, reasonable structure, reliable sealing, good performance and beautiful appearance.

2. Variety complete, packing and gasket materials reasonable matching, can according to customer's request to apply to all kinds of pressure, temperature and medium conditions, high pressure valve selects high quality alloy steel manufacturing, sealing surface using department too vertical (stellite) cobalt-based hard alloy, safe and reliable, stable performance and long service life.

3. The valve bonnet structure is reasonable, the wall thickness is strictly controlled and the test conforms to the national standard GB12234 and the American standard ANSI B16.34, the strength is high, the rigidity is good, the flow resistance is small.

4. Using wedge-type elastic gate structure, it is made of whole cast, with fine design and good sealing performance.

5. The stem is made of heat-resistant alloy steel with good mechanical properties and corrosion resistance and abrasion resistance.

6. Gate valves shall be fully resealed, which may be repaired or modified in unstopped working conditions.

7. The stem nut adopts the internal function structure, the ball bearing is set up with the connecting part of the bracket, the torque is small and the lifting is easy.

8. According to the requirements of users or engineering, the connection form should be reasonably selected, and various operation modes can meet different usage requirements.

Customer Questions & Answers
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