Ductile Iron Gate Valve PN16 Non Rising&Rising Stem

Ductile Iron Gate Valve PN16 Non Rising&Rising Stem System 1

Ductile Iron Gate Valve PN16 Non Rising&Rising Stem

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 111 PCS

Supply Capability:: 1000 PCS/month

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Quick Details

Standard or Nonstandard:	Standard	Structure:	Gate	Pressure:	Medium Pressure
Power:	Manual	Material:	Casting	Temperature of Media:	Normal Temperature
Media:	water oil gas	Place of Origin:	Tianjin China (Mainland)	Model Number:	Gate
Brand Name:	CNBM	Certificate:	ISO 9001:2008

Packaging & Delivery

Packaging Detail:	Bubble pack for each valve. Outside packing are plywood cases. Or as per the request of customers.
Delivery Detail:	Within 30 days after receiving T/T down payment.

Specifications

Material : GGG50 Body&Bonnet/GGG50+EPDM Wedge/SS420 Stem/GGG50 Handwheel/PN16
Size:DN50-DN600

PN16 Non Rising&Rising Stem Ductile Iron Gate Valve DN50-DN600

The products are widely used in water source projects, urban water supply and drainage,
sewage treatment, electric power, petroleum, petrochemical , heat supply,
shipbuilding, medicine and metallurgy industries. Equipment are used for regulating
or cutting off media in pipelines. Suitable media include water, sewage, sea
water, air, foodstuff and oil. Suitable for gear operators, electric and pneumatic
control actuators.

Q: Gate valve, butterfly valve, ball valve advantages and disadvantages? What are the usual valves?: Commonly used valves are: gate valve, globe valve, check valve, ball valve, butterfly valve, safety valve, regulating valve, plug valve and so onValve: valve is closed parts (RAM) vertical movement of the valve in the pipeline along the channel axis, used primarily as a medium cut that open and close use. In general, the valve can not be used as a regulation flow. The utility model can be applied to low temperature pressure, and can also be applied to high temperature and high pressure, and can be made according to different materials of the valve. But the valve is generally not used to transport mud and other media pipeline.Advantages: fluid resistance is small; the opening and closing torque needed by the smaller; can use the ring pipe flow to the two direction in the medium, that is to say the unrestricted flow of medium; the fully open, the sealing surface by the erosion of the working medium is smaller than the cut-off valve; the body has the advantages of simple structure, manufacturing good craft; the structure of relatively short length.Disadvantages: the size and height on the larger required installation space is larger; in the process of opening and closing, a relative friction sealing, friction is large, even scratch phenomenon caused by easily at high temperature; the valve has two sealing surface, to processing, polishing and maintenance of some increase the opening and closing time difficult.

Q: What is the standard length of GB steel gate valve?: 1, product standardsGeneral purpose valves, flanged connections, iron gate valves, GB/T 12232-2005General requirements for steel valves GB/T 12224-2005"Steel flat gate valves for pipelines" JB/T 5298-91Inspection and test of valves. JB/T 9092-1999Standard for safety evaluation of drinking water distribution equipment and protective materials GB/T 17219-1998

Q: Why can't the pressure measuring point be set at the two ends of the gate valve when measuring the resistance loss of the gate valve?: In the standard JB/T5296-1991 "universal valve flow coefficient and the flow resistance coefficient test method",

Q: Does the relief valve have a gate valve?: With the ball valve, needle valve, with the valve did not see, but there should be some.

Q: What does gate z41t-10 150 mean?: According to JB/T308-2004 "valve type programming method"Z gate valve4 flange connection1 Ming wedge single gateT sealing cover material is copper alloy10 nominal pressure PN10PN16 below no marked valve body code, body material is gray cast iron150 nominal size DN150

Q: What do you mean by forged steel gate valves 800LB DN20 SW?: Is the forged steel gate 800LB is DN20 on SW welding pressure

Q: What is the wedge type gate valve wedge is what mean: According to the gate can be divided into the form of parallel wedge type. (1) wedge type gate. Wedge type gate the sealing surface of a certain angle with the vertical center line of the gate, the size of angle depends on the medium temperature and diameter size. General medium temperature is higher, and the greater the inclination angle is bigger, in order to prevent the temperature change when the gate is stuck, unable to open. Wedge gate sealing than the parallel well.

Q: Generally, how big is the diameter of the installation flange plate gate valve?: Under normal circumstances:Flanged gate valves for piping over DN50,DN50 (below) can be made of wire or gate valves, or flanged gate valves (flanged valves or welded gate valves)

Q: Yes, soft sealing gate valve can reach 25 kilograms, Fujian light valve company has this type of soft sealing gate valveAnonymous browsing | 28 times: Soft seal butterfly valve seal is good, but can only withstand up to 16 pressure, or the plastic can not stand. A short period of time is OK, and it's also related to the workmanship and quality of the factory. The quality is poor.

Q: Function of gate valve: Gate valve is a closed (gate) along the central line of the vertical direction of the valve moving. Valve in the pipeline can only be fully open and fully closed off, can not be adjusted and the throttle. Gate valve is a valve used in a wide range, generally more than 50mm caliber DN block device is selected it, sometimes cut off very small aperture devices are used to gate valve, gate valve is used as cut-off media, when in full flow through the whole, when the media is running a minimal pressure loss. Gate valves are normally used in situations where they do not need to be frequently opened and closed, and the gate is fully open or fully closed. Not used as an adjustment or throttling. For high speed moving medium, the gate can cause the vibration of the gate under the condition of partial opening, and the vibration may damage the sealing surface of the gate and the valve seat, while throttling will cause the gate to suffer the erosion of medium.

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