Butterfly Valve ; Three-eccentric Multi-layer Butterfly Valve

Butterfly Valve ; Three-eccentric Multi-layer Butterfly Valve System 1

Butterfly Valve ; Three-eccentric Multi-layer 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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Item specifice

Material:

Steel

Pressure:

Low Pressure

Temperature of Media:

Normal Temperature

Power:

Manual,Pneumatic,Electrical,Worm gear,Other

Media:

Air / Water / Steam / Coal Gas / Oil Product / Alkali / Saline with low corrosive service

OD（Outer Diameter: inch）:

2000

Size(inch):

406

Pressure（LB）:

Net Weight (kg):

5300

Features
The butterfly valve has the ideal sealing track since following three-eccentric principle, without friction and interference between sealing seats, and also adopts the proper material, which make the butterfly valve have the reliable sealing ability, corrosion resistant, temperature resistant and wearing resistant. The main features as bellow:
1.Small open torque, flexible and convenient, laboursaving and energy economised.
2.Three-eccentric structure to make the disc more and more tighter, with reliable sealing ability and no leakage.
3.High Pressure resistant, corrosion resistant, wearing resistant, long lifetime.

Application Standards
Design standard: CJ/T 261-2007 ; GB/T12238-89
Flange standard: GB/T9113.1-2000 ; GB/T9113.2-2000 ; GB/T9115.1-2000 ; GB/T9115.2-2000 ; HG20596-97

Face-to-face: GB/T12221-1989

Pressure test: GB/T13927-1992 ; JB/T9092-1999

Main Technical Parameter

Nominal Diameter	DN(mm)	‍‍ 50~2000‍‍‍‍‍‍‍‍‍‍‍‍‍‍				50~500
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
Leakage	<0.1 XDNmm³/s (Conforming to GB/T13927 Standard)
Applicable Temperature	Carbon Steel: -29^oC ~ 425^oC / Stainless Steel: -40^oC ~ 600^oC
Applicable Medium	Air / Water / Steam / Coal Gas / Oil Product / Alkali / Saline with low corrosive service
Method	Worm gear / Pneumatic / Electric

Material for main parts

Parts Name	Material
Body	Castiron / Stainless steel / Cr-Mo steel / Alloy steel
Disc	Cast steel / Alloy steel / Stainless steel / Cr-Mo steel
Seats	Stainless steel / Multi-layer asbestos with temperature resistant
Stem	2Cr13 / Stainless steel / Cr-Mo steel
Bearing	304 nitrification Austenite 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:What is the medium flow rate when the centerline butterfly valve is fully open?: On the pipeline, mainly from cutting and throttling. Butterfly valve headstock is a disc shaped disc, in the valve body around its own axis of rotation, so as to achieve the purpose of opening or closing or regulation.

Q:Butterfly valve structure and working principle: 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:Butterfly valve general use occasions: Butterfly valveAlso known as butterfly valve, control valve has a simple structure, can be used for low pressure pipeline valve switching control is closed parts (disc or disc) is a disk, around the valve axis to achieve the opening and closing a valve, the valve can be used to control the flow of air, water, steam steam, all kinds of corrosive medium, mud, oil, metals and radioactive liquid media and other types of fluid. On the pipeline, mainly from cutting and throttling. Butterfly valve headstock is a disc shaped disc, in the valve body around its own axis of rotation, so as to achieve the purpose of opening or closing or regulation.

Q:I want to switch off the water in the bathroom only due to replacing sink taps, will water still come out of the pipe if i turn the stop valve: Water should be off to the sink is the stop valve off

Q:That industry uses most of the butterfly valve, and only use the butterfly valve, a large number of use of butterfly valve, seek expert advice!: I know there are automatic fire fighting systems and the oil industry.

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:can't locate freon intake valve for 03 jaguar an was wondering were it is located at: If it has one it should be located on the smaller line near the AC compressor.

Q:For example, the arrow above is from left to right, and the direction of my current is from right to left. Is that ok? I have a diameter of 700 of the hard seal butterfly valve is so installed, but it will leak water, it will not leak, very serious: From the above example, it can be concluded that the arrow direction of the butterfly valve body refers to the direction of the pressure of the medium. Before the installation, the user must know the direction of the pressure of the valve after the valve is closed. The direction of the arrow of the free valve body is in accordance with the direction of the pressure of the medium, so that the correct use can be achieved, and the tightness of the valve body is kept in good condition.

Q:Fire, the signal butterfly valve flange connection or welding?: Fire signal butterfly valve is generally used to clamp type connection more, the clip type butterfly valve body is without flange, that is to say, with two flanges on the pipe, then screw the butterfly valve. Followed by the butterfly valve itself with flanges, and then the pipe flange with screws connected, this is the flange connection. Fire welding less use, pressure is not high!

Q:My bike has now 6200 miles on the odometer. The manual says that a valve adjustment should be performed every 6000 miles. But the bike runs fine. Can I just have the valve checked or should I have them adjusted even though the bike is fine? What will happen if I just keep riding it?: In reality, lots of bikes go their entire lives without a valve adjustment. In my opinion that is a great way to ruin a bike though. They have a maintence schedule for a reason. If a valve isn't seating, it can hurt performance and the valve will not be able to transfer heat to the head. That can burn a valve and cause detonation. You have to check valves to adjust them, and the labor for just checking will be nearly the same or identical to doing the adjustments. I do all my own wrenching, so money isn't really an issue, but if I were you, I would just bite the bullet and take it in.

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