DUCTILE IRON BUTTERFLY VALVE DN300 China

DUCTILE IRON BUTTERFLY VALVE DN300 China System 1

DUCTILE IRON BUTTERFLY VALVE DN300 China System 2

DUCTILE IRON BUTTERFLY VALVE DN300 China

Ref Price:: $600.00 - 1,000.00 / set

Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 200 set

Supply Capability:: 4000 set/month

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DUCTILE IRON BUTTERFLY VALVE DN300 China

The main parameters
The main parameters
Nominal pressure（MPa)	0.05MPa	Medium temperature	-30℃～-350℃
Strength test	0.1MPa	Applicable medium	Hot and cold wind, smoke
Medium flow	25m/s	Leakage rate	3%

Parts Name	Body	Valve plate	Valve shaft
Material	Carbon Steel	Carbon Steel	Carbon Steel 、Stainless Steel

Product Description
AL Series Ventilation butterfly valve manufacturers using steel plate welded，With the structure of the short size, light weight, easy to install。Driving torque of the valve small, sluicegate flexible, easy to operate。Body set up the oil seal ring, sealing no visible gap between the vice, a small leakage rate。Between butterfly valve plate and the expansion of space, and can be effective in preventing heat up due to shrinkage caused by the phenomenon of death card。The valve can be equipped with a variety of drive devices such as manual installation, the worm gear, pneumatic devices, electrical devices。Ventilation butterfly valve is widely used in metallurgical, division of, electricity, building materials, mining and other industrial pipeline gas to the medium control or regulation of gas.

Ventilation butterfly valve ALD941W the main form of electric connection size
Unit：mm

DN	D	D1	L	L1	L2	n-Фd	b
300	405	370	120	716	220	8~14	10
350	455	420	140	786	240	8~14	10
400	505	470	140	924	270	12~18	10
450	570	530	160	999	295	12~18	10
500	620	580	160	1079	325	12~18	10
600	720	680	180	1140	380	16-18	12
700	820	780	180	1240	430	16-18	12
800	920	880	200	1344	490	16-18	12
900	1040	990	200	1444	540	16-18	14
1000	1140	1090	220	1544	590	20-18	14
1100	1240	1190	220	1644	640	20-18	14
1200	1340	1290	240	1744	690	20-18	14
1300	1440	1390	240	1864	760	20-18	16
1400	1540	1490	260	2020	810	24-18	16
1500	1640	1590	260	2120	860	24-18	16
1600	1740	1690	280	2240	980	24-18	16
1700	1840	1790	280	2340	1030	28-22	16
1800	1940	1890	300	2440	1096	28-22	16
1900	2040	1990	300	2540	1146	32-22	16
2000	2150	2090	320	2640	1196	32-26	16
2200	2360	2300	340	3252	1296	36-26	16
2400	2560	2500	360	3452	1396	36-26	18
2600	2760	2700	380	3652	1496	40-26	18
2800	2960	2900	400	3852	1596	40-26	18
3000	3190	3110	400	3896	1698	44-30	18
3200	3390	3310	440	4110	1798	44-30	20
3400	3590	3510	440	4396	1898	48-30	20
3600	3790	3710	480	4636	1998	48-30	20
3800	4000	3910	480	4886	2098	52-30	22
4000	4210	4120	520	5160	2210	52-30	22

Q: D37A1X9-16CB1: what does this butterfly valve mean?: The model is composed of 7 units, the types of valves (gate valve Z, J, L, Q ball valve, throttle valve, check valve and H valve, butterfly valve, connection mode (D) internal thread 1 thread 2, welding flange 4, 6, 7, the clamp (0) electromagnetic transmission mode 1 solenoid valve, hydraulic, electric and hydraulic turbine are 2, 3, 4 and 5 gears, bevel gear, pneumatic hydraulic, 6, 7, 8, 9) pneumatic and hydraulic, electric, structure (straight or DC type 7,1 on behalf of the center plate, vertical type A (A) and LT X9) on behalf of a sealant is heat-resistant rubber, kg 16 kg, C represents the body material of carbon steel WCB, B1 on behalf of the valve plate is made of ductile cast iron plating)

Q: Why use special flanges for butterfly valves?: Butterfly valve to use special flange, butterfly valve itself is because of the structure of the decision, the butterfly valve to clip type connection, this pair of clamps is a special flange.Also 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: Are fire fighting signal valves and signal butterfly valves the same thing?: The same nature: both can open and close, there is also information back fed.Signal valves are collectively referred to as signal butterfly valves.

Q: Water supply pipe gate valve and butterfly valve which good?: 1. gate valve: also known as gate valve or gate, there is a valve in the valve flow direction perpendicular to the medium, adjust the height of the gate, you can adjust the flow of fluid. Valve advantages are small resistance, close tight, no water hammer phenomenon, widely used in a variety of liquid and gas shut-off valve. It also has some adjustment function, but when the part is opened, the gate is easy to be wetted by the fluid. When the fluid flows, it causes the shaking of the alarm board and the sealing surface is easy to wear. The drawback of the gate valve is that the structure is complex, the price is more expensive, it is difficult to repair, and the solid material is easy to deposit in the valve seat groove. Therefore, it is not suitable for the pipeline containing fiber or solid material in the fluid. Commonly used in the air, steam, oil medium pipeline, but also used as vent valve and low silk system valve.Gate valve is commonly used as one of the cut-off valve, mainly used to connect or cut off the medium in the pipeline, not applicable to regulating medium flow. Valve is suitable for pressure, temperature and caliber range, especially for medium and large diameter pipes.

Q: How do hydraulic butterfly valves work?: Butterfly valve hydraulic drive device working principle1. manual operationWhen the hydraulic system suddenly fails, the valve can not move when the butterfly plate at any stop. Then, shaking the manual device, the guide block guide block in front of the manual shaft together with the driving shaft end, the cogging and drive shaft spline manual corresponding to the slot. Then, by dialing the driving device, the dial is shifted to the left end, and the transmission spline is connected with the manual shaft by a gear sleeve (the driving device is provided with a limit for preventing the tooth sleeve from jumping up), and the crank is disengaged from the hydraulic cylinder to disengage the hydraulic cylinder. Then turn the manual device and use the manual device to realize the disc movement.2. hydraulic operationWhen the hydraulic system returns to normal operation, the actuating device needs to be operated by hand. First, adjust the hydraulic cylinder to its initial state (0 digits) or at any position. Then manually adjust the opening of the disc to the position corresponding to the cylinder stroke (by observing whether the mark on the gear sleeve is in accordance with the mark on the crank, and judge the position of the disc and the cylinder). Then pull the gear sleeve and engage the spline on the crank by poking the driving device. Then fix the shift to prevent jumping. At this point, start the hydraulic system to restore fluid flow.

Q: The difference between the directly buried gate and the flange valve and butterfly valve: Buried gate also called buried gate valve, valve can be directly buried underground, built without manhole, reduce road excavation area; small well maintained road and beautiful room can reduce the difficulty of construction, reduce project cost. The directly buried soft sealing gate valve is divided into two types: telescopic type and fine fixing type, wherein, the telescopic type is divided into metal type and plastic type. In the process of construction, the telescopic type can be adjusted arbitrarily according to the distance between the buried depth of the valve and the ground, and the micro adjustment can be adjusted on the spot. The directly buried gate valve has the advantages of long-term use, no leakage, no maintenance, etc., and can effectively avoid other people switching the valve and stealing the manhole cover at will.Flange gate valve is connected to the flange gate valve, this connection is the most common way.

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

Q: What is the difference between the installation and function of a butterfly valve and butterfly valve?: The principle of the valve gate valve is open and close cases, RAM direction of motion perpendicular to the direction of the fluid, valve can only be fully open and fully closed, can not be adjusted and the throttle. Gate has two sealing surface, the most commonly used mode gate valve of the two sealing surface forming wedge, wedge angle with valve parameters vary, usually 50, medium temperature is not high when 2 degrees 52. Wedge gate valve can be made into a whole, called the rigid gate; can also be made to produce micro deformation of ram, in order to improve its process of deviation, make up the sealing surface angle in the process, the gate is called the flexible gate. Valve closed, the sealing surface can only rely on medium pressure to seal, that is to rely on medium pressure to the gate sealing surface pressure to the other side of the seat to ensure the sealing surface seal, which is self sealing. Most of the valve is forced seal, that is, when the valve closes, to rely on external force to force the gate to the seat, in order to ensure the sealing surface sealing. Gate valve with the stem along with a straight line of motion, called the lift rod gate valve is also known as the bar gate valve. Usually there is a trapezoidal thread on the lifter. The rotating motion is changed into a straight line through the nut at the top of the valve and the guide groove on the valve body. That is to say, the operating torque is changed into the operating thrust. When opening the valve, when the gate lift height is equal to 1:1 times of the valve path, the passage of the fluid is completely unblocked, but at run time, this position is unable to monitor. In actual use, the top of the stem is used as a sign, i.e., the open position, as its fully open position.Temperature changes appear to consider locking phenomenon, usually open to the vertex position, and then rewind 1/2 1 circle, as a fully open valve position.

Q: Butterfly valve D71X-16 and D71X-16Q what is the difference?: The two difference is that the body of the material is not the same, 16 behind with no sign, expressed as a default, is carbon steel (usually C), if you need to specify material, just behind with symbols, such as Q nodular cast iron, stainless steel P.

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 /

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