Welded Metal-to-metal Butterfly Valve ; Butterfly Valve

Welded Metal-to-metal Butterfly Valve ; Butterfly Valve System 1

Welded Metal-to-metal Butterfly Valve ; Butterfly Valve

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 10 pc

Supply Capability:: 1000 pc/month

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Specification

Material:

Steel

Pressure:

High Pressure

Temperature of Media:

-40°C to 600°C

Power:

Pneumatic,Electrical,Turbine

Media:

water / Steam / oil product / corrosive acid, etc

OD（Outer Diameter: inch）:

2000

Size(inch):

2028

Pressure（LB）:

Net Weight (kg):

2500

It is applicable to the pipelines if high temperature, high pressure, and heat perservation as the function to open, close or adjusting flow. Main features details as below:

Compact structure, small volume, lightweight, flexible operation, convenient using.
With three-eccentric flexible and milti-layer metal-to-metal structure, the sealing performance can reach zero leakage.
The kind of valve hasn't flanges, which make the pipelines and jacket-installed great convenient and beautiful.
There are advantages with high temperature and high pressure resistant, corrosion resistant, friction resistan, etc.

Applicable Standard

Welded dimensions: GB12224 ; ANSI B16.25 ; DIN2559

Face-to-face: GB/T12221-1989 ; API609

Pressure Test: GB/T13927-1992 ; API598

Main Technical Parameter

Nominal Diameter	DN(mm)	50-700
Nominal Pressure	PN(MPa)	0.6	1.0	1.6	2.5	4.0
	Intensity Test	0.9	1.5	2.4	3.75	6.0
	Seal test	0.66	1.1	1.76	2.75	4.4
	Air Test	0.6	0.6	0.6	0.6	0.6
Applicable Temperature	Carbon Steel: -29°C-425°C / Stainless steel: -40^oC ~ 600^oC
Applicable Medium	Water / Steam / Oil Product / corrosive acid, etc

Material for Main Parts

Parts Name	Material
Body	Cast steel / Stainless steel / Cr-Mo steel /special material
Disc	Cast steel / Alloy steel (Crplated) / Stainless steel / Cr-Mo steel / special material
Seat seal ring	Stainless steel / anti-wearing material
Stem	2Cr13 / Stainless steel / Cr-Mo steel
Packing	Flexible graphite

Please consult customer service before placing an order( in order to confirm with size and material of the relevant product).

Q:Butterfly valve network and ordinary butterfly what is the difference?: 1. The butterfly valve of the pipe network adopts an eccentric structure. When closed, it has the function of closing and tightening. The sealing performance is reliable. After opening and closing, the cover is completely sealed, and the cover is completely out of contact, so as to ensure that the sealing surface is not damaged.2, the sealing surface is made of stainless steel, corrosion resistant, high temperature resistant, long service life. With two-way sealing function, medium flow is not affected by the installation restrictions (if only one-way control medium should be used to seal the installation direction) is not affected by a single space, can be installed in the any direction.

Q:Butterfly valves are widely used in 2.0MPa below the pressure and temperature of not more than 200 degrees of various media, right?: 5. butterfly valve structureButterfly valve mainly by the body, butterfly plate, stem, sealing ring and transmission components.(1) the valve body is cylindrical, and the upper and lower parts each have a cylindrical boss for installing the valve stem. Butterfly valve and pipe flange connection, such as the use of clamp connection, the minimum length of its structure.(2) stem, stem is the axis of the butterfly plate, shaft end adopts stuffing box sealing structure, can prevent leakage of medium. The upper end of the valve stem is directly connected with the driving device to transmit the torque.(3) the butterfly plate is the opening and closing part of butterfly valve.

Q:What kinds of butterfly valves are available? What is the working principle of butterfly valves?: At work temperature:(1) high temperature. T>450 degrees C butterfly valve.(2) medium temperature butterfly valve. 120 C<t<450 DEG butterfly valve.(3) normal temperature butterfly valve. A 40C<t<120 degree C butterfly valve.(4) low temperature butterfly valve. One 100<t< one, 40 degrees C butterfly valve.(5) ultra low temperature butterfly valve. T< one 100 degrees C butterfly valve. Www bgfm /df/Divided by connection:1 pairs of clip butterfly valveThe butterfly plate of the clip butterfly valve is installed in the direction of the diameter of the pipe. The valve is fully open.The clip butterfly valve is simple in structure, small in size and light in weight. 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.2, flange butterfly valveThe flange butterfly valve is a vertical plate structure, and the stem is a sealing ring of an integral metal hard sealing valveFor flexible graphite plate and stainless steel plate composite structure, mounted on the valve body, butterfly plate sealing surface of stainless steel surfacing. The sealing ring of the soft sealing valve is made of nitrile rubber and is mounted on the butterfly plate.3, lug butterfly valve4 、 welded butterfly valveWelding type butterfly valve is a non sealed butterfly valve, widely used in medium temperature less than building materials, metallurgy and mining, electric power production process at 300 nominal pressure 0.1Mpa pipe, used to open and close connected, or adjust the medium quality.

Q:The water supply pipe is the gate valve And on the cross dry pipe are the gate valve? To answer the 30: 1, this is a good question, it seems that this has not yet made a unified standard requirements, a bit confused2, personal understanding of fire water supply pipe, pipe shall be installed on the valve, because the valve is fully open all closed features of fire control system is usually required is fully open, easy management features are obvious.3, fire water supply system is also useful to butterfly valve, but mainly signal butterfly valve.The signal butterfly valve is generally installed in two parts: floor level, dry pipe, flow indicator front end, trunk pipe, wet alarm valve, front end.Floor level pipe installation is a function of the signal valve, when the floor spraying system needs repair, close the valve, open the end of the floor drain, emptying the water in the spray system, maintenance; 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.Wet alarm valve at the front of the signal butterfly valve with the main floor of the main role of the butterfly valve, first, maintenance, and two is the prompt sprinkler system, there is a signal butterfly valve closed, should be repaired as soon as possible.

Q:What are the uses and classifications of manually operated clip butterfly valves?: Classification: butterfly valves are commonly used on the clip butterfly valve and flange butterfly valve two. 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:e.g. a patient with a prosthetic aortic valve and a patient with a prosthetic mitral valve. Also, can you get stenosis of mechanical valves or just tissue grafts?Thanks!: mechanical okorder /

Q:How do you explain A in butterfly valve D37A1?: Represents a seal or lining material symbol.Said sealing ring or lining material with the Chinese phonetic alphabet: B Babbitts D nitrided steel, acid resistant stainless steel H, J L Aluminum Alloy, hard rubber, nylon NL, P leather, SA PTFE, SC PVC, SD bakelite, T copper, TC enamel, X rubber, Y hard alloy

Q:What are the functions and uses of butterfly valves?: Industrial butterfly valve features, capable of high temperature, applicable pressure range is higher, the valve nominal diameter is large, the valve made of carbon steel, the valve plate sealing ring using metal rings instead of rubber rings. Large high temperature butterfly valve welded by steel plate, mainly used for high temperature smoke duct and gas pipe.Construction: mainly composed of valve body, valve stem, disc and sealing ring. The valve body is cylindrical and has short axial length and is internally provided with a plate.

Q:How warm is the PTFE butterfly valve?: The normal temperature can be kept at 120 degrees and the instant temperature is 150

Q:Butterfly D371X5-16ZB1 what does each letter stand for?: Daily valve pressThe regular model is out of step with you. I can only explain the regularD371X5-16ZB1D is butterfly valve3 is the turbine drive7 is the clamp connection1 is the display opening signX is a rubber seal16 is 16 kg pressureI don't know the other superfluous letters

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