Pearlitic Ductile Iron

Ductile Iron Valve Wafer Ductile Iron Valve
Ductile Iron Valve Wafer Ductile Iron Valve
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Min Order Qty: 100 PCS
Supply Capability: 1000 PCS/month
Ductile Iron Manhole Cover MC054 Grey Iron
Ductile Iron Manhole Cover MC054 Grey Iron
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Min Order Qty: 100 m.t.
Supply Capability: 10000 m.t./month
Manhole Cover Ductile Iron, Grey Iron Square
Manhole Cover Ductile Iron, Grey Iron Square
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Min Order Qty: 200 pc
Supply Capability: 9999 pc/month
Gate Valves Ductile Iron Cast Iron  Manufacturing
Gate Valves Ductile Iron Cast Iron Manufacturing
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Min Order Qty: 100 PCS
Supply Capability: 1000 PCS/month
Ductile Iron Pipe Cast Iron EN545 DN800
Ductile Iron Pipe Cast Iron EN545 DN800
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Min Order Qty: 999 m
Supply Capability: 9999 m/month
ductile iron pipe china Material:Ductile Iron
ductile iron pipe china Material:Ductile Iron
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Ductile Iron Pipe Cast Iron DN500 EN598
Ductile Iron Pipe Cast Iron DN500 EN598
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Min Order Qty: 20 m.t.
Supply Capability: 100000 m.t./month
Manhole Cover B125 Cast Iron Ductile Iron
Manhole Cover B125 Cast Iron Ductile Iron
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Min Order Qty: 500 pc
Supply Capability: 10000 pc/month
Grating Ductile Iron Cast Iron High Quality
Grating Ductile Iron Cast Iron High Quality
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Min Order Qty: 500 pc
Supply Capability: 5000 pc/month
Ductile Iron Pipe Cast Iron EN545  DN500
Ductile Iron Pipe Cast Iron EN545 DN500
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Min Order Qty: 1000 m
Supply Capability: 10000 m/month
Butterfly valve Cast Iron and Ductile Iron
Butterfly valve Cast Iron and Ductile Iron
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Min Order Qty: 500 pc
Supply Capability: 5000 pc/month
Ductile iron/ cast iron gate valve pn16
Ductile iron/ cast iron gate valve pn16
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Min Order Qty: 111 PCS
Supply Capability: 1000 PCS/month
ductile iron pipe
ductile iron pipe
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ductile iron pipe of China  Material:Ductile Iron
ductile iron pipe of China Material:Ductile Iron
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Ductile Iron Pipe Casting Iron EN598 DN1600
Ductile Iron Pipe Casting Iron EN598 DN1600
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Min Order Qty: 999 m
Supply Capability: 9999 m/month
Ductile Iron Pipe DN150
Ductile Iron Pipe DN150
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DUCTILE IRON PIPE DN2500
DUCTILE IRON PIPE DN2500
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Ductile Iron Reducing  Valve
Ductile Iron Reducing Valve
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Ductile Iron Gate Valves
Ductile Iron Gate Valves
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Min Order Qty: 100 pc
Supply Capability: 1000 pc/month
Ductile Iron Dismantling Joint
Ductile Iron Dismantling Joint
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Min Order Qty: 20 PCS pc
Supply Capability: 1000 Ton Per Month pc/month
DUCTILE IRON FLANGE SOCKET
DUCTILE IRON FLANGE SOCKET
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ductile iron pipe NEGOTIATED
ductile iron pipe NEGOTIATED
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DUCTILE IRON PIPE DN3400
DUCTILE IRON PIPE DN3400
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Ductile Iron Pipe DN400
Ductile Iron Pipe DN400
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Ductile Iron Flexible Coupling
Ductile Iron Flexible Coupling
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Min Order Qty: 1 Ton pc
Supply Capability: 50,000 Ton Per Year pc/month
DUCTILE IRON PIPE DN4100
DUCTILE IRON PIPE DN4100
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DUCTILE IRON PIPE DN2200
DUCTILE IRON PIPE DN2200
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DUCTILE IRON PIPE DN1200
DUCTILE IRON PIPE DN1200
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DUCTILE IRON PIPE DN3000
DUCTILE IRON PIPE DN3000
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Ductile Iron Pipe DN450
Ductile Iron Pipe DN450
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DUCTILE IRON PIPE DN1400
DUCTILE IRON PIPE DN1400
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DUCTILE IRON PIPE DN100
DUCTILE IRON PIPE DN100
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DUCTILE IRON PIPE DN2900
DUCTILE IRON PIPE DN2900
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DUCTILE IRON PIPE DN2800
DUCTILE IRON PIPE DN2800
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Ductile Iron fittings
Ductile Iron fittings
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Ductile iron pipe DN400
Ductile iron pipe DN400
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FAQ

The difference between gate valve and butterfly valve, as well as cut-off valve,
Butterfly valve is a disc type of open and close parts reciprocating reciprocating about 90 degrees to open, close and adjust the fluid channel of a valve.Advantages: the butterfly valve has the advantages of simple structure, small volume, light weight, material consumption, installation of small size, and torque is small, simple and rapid operation, and also has good flow characteristics of regulation and sealed off, is nearly 10 years the fastest growing valve, high temperature and high pressure, and to large diameter, high sealing function of the direction, long life, good adjusting features and a valve development.Disadvantages: the butterfly valve relative to the gate, ball valve pressure loss is relatively large, it is suitable for pressure loss requirements lax piping system.Under normal circumstances, it is not suitable for high temperature and high pressure pipeline system.Valve is closed parts (valve) moving along the centerline of the valve seat, the valve stem to open or close the trip is relatively short, but very reliable cut off function, and because changes in the valve seat and the valve stroke is proportional to, is also very suitable for the regulation of traffic.Advantages: in the process of opening and closing, the friction between the disc and the valve body is smaller than that of the gate valve, so it is wearableThe opening height is generally only 1/4 of the diameter of the seat channel, so it is much smaller than the gate valveGenerally, there is only one sealing surface on the body and disc, so the manufacturing process is good and easy to maintain;Disadvantages: the flow resistance coefficient is relatively large, resulting in pressure lossUnsuitable for large caliber productionThe opening and closing moment is larger and the structure length is longer.s
What are the working principles of the electric gate valve?
Ordinary type electric valve should be equipped with the control box, the motor is the true story and the inversion, and in general to a trip signal signal is normally open and normally closed, closed in place are normally open and normally closed two points according to their own needs wiring, three lines and then open and close control of the line of control there are also 4 lines to control some manufacturers, as well as the valve position, some three lines connected with the potentiometer, some installed valve position transmitter is connected with two lines, and over torque protection fault signal.s
Gate valve Z41H-16Q generally used for what place?
It is a standard flanged gate valve with engineering pressure 1.6MPa. Generally used in chemical processes, of course, can also be used for municipal and civil engineering. The valve is generally used for cutting occasions fully open or fully closed, is not suitable for flow regulation.s
Analysis of the advantages of elastic seat sealing gate valve?
Most of the valve is forced seal, that is, when the valve closed, to rely on external force to force the gate to the seat, in order to ensure the sealing surface sealing.When opening the gate valve, when the gate lift height is equal to 1:1 times of the gate diameter, 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. Therefore, the opening position of the gate valve is determined by the position of the gate (i.e. the stroke). The sealing surface is easy to wear and tear, affecting the service life. When opening and closing, gate and valve seat two sealing surface friction, sliding, to medium pressure under the action of easy to produce abrasions, wear, affect sealing performance, shorten service life.s
What is the Z15T-16C letter of the gate valve?
The Z class code indicates the type of gate valve, gate valve is the first letter of the alphabet. The gate is manual driving mode, 1 said the connection form of gate valve for connecting thread, 5 represents the structure form of gate valve for rigid single gate, T gate said lining material of copper alloy, 16 PN1.6MPa nominal pressure valve. C said the valve body material is carbon steel.s
Gate valve DN65 what does that mean?
DN65 indicates that the valve bore is 65CM.The gate (gate valve) is a headstock ram, RAM direction of motion perpendicular to the direction of the fluid, valve can only be fully open and fully closed doors, discomfort pumpsparameters vary, usually 5 degrees is not high, medium temperature is 2 degrees 52'. To improve its manufacturability, make up for the deviation of the angle of the sealing surface during processing. This gate is called an elastic ram.s
What's the difference between open rod gate and dark rod gate valve?
4, the dark pole gate valve height smaller size; Ming rod gate valve requires a larger installation space;5, the structure of the rod gate valve is beneficial to the lubrication of the valve stem, and the degree of opening and closing is obvious. The stem thread of the dark rod gate valve is not only unable to lubricate, but also directly accepts the medium erosion and is easy to damage. Therefore, the open bar gate valve is used more widelys
What is gate well?
Technical requirement:1: the valve itself can not seep, it must ensure its tightness;2: water supply pipeline during use, pipeline will be pressure from different aspects, which will produce different degrees of jitter or settlement, which requires the connection of water supply pipes and valves in the well to be reliable, able to adapt to a certain degree of jitter and settlement, and to prevent water infiltration into the well chamber in the pipeline valve wells; deep, slightly larger are generally made of cast iron valve (such as the cut-off valve, butterfly valve) iron valves long-term immersion in water, will affect the service life or cause fracture, so the sealing requirements are higher;3: valve shaft, shaft and well body, manhole cover way of connection should be reliable, not because of heavy rain or water seepage water into the well room.4: valve well is buried in the ground, to bear from different directions of different pressure, and different chemical substances corrosion and damage, and requirements of its pressure capacity and acid and alkali corrosion is better.s

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