Gate Valve Brass Stem China Quality on Sale

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
150 m.t.
Supply Capability:
10000 m.t./month

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Item specifice:

Material: Cast Iron Pressure: High Pressure Temperature of Media: Normal Temperature
Power: Manual Media: Water OD(Outer Diameter: inch): 400
Size(inch): DN300 Pressure(LB): 500 Net Weight (kg): 240

Product Description:

1.Structure of Gate Valve Description:
Gate valves are primarily used to permit or prevent the flow of liquids, but typical gate valves shouldn't be used for regulating flow, unless they are specifically designed for that purpose. Because of their ability to cut through liquids, gate valves are often used in the petroleum industry. For extremely thick fluids, a specialty valve often known as a knife valve is used to cut through the liquid. Typical gate valves are designed to be fully opened or closed.When fully open, the typical gate valve has no obstruction in the flow path, resulting in very low friction loss.
2. Main Features of the Gate Valve:
The sealing surface of valve seat and gate is overlaid (surfaced) with hard alloy, resistant to corrosion and abrasion.
Valve seat, gate and stem are sealed with imported lip-shaped combined seal structure, so they are safe and reliable, and the switching torque of valves is low.
Simple and safe design of valve gate and seat, makes it easy to change without special tools.
Non-rubber seal effectively protects valve chamber from mud, sand and rock, etc.
Stem sealing can be changed under pressure.
Stem is designed to be rising stem and non-rising stem, with a clear sign for valve opening.
Drive mode falls into manual, hydraulic and gear.
Combining type falls into flange, thread and hub.

3. Images of the Gate Valve
 Gate Valve Brass Stem China Quality on SaleGate Valve Brass Stem China Quality on Sale

4. Specification of the Gate valve
1. Size: 1-1/2"-24" (DN40-DN600)
2. Design Standard: BS5150, BS5163, AWWA C509/C515, DIN3202 F4/F5, MSS SP-70.
3. End Flange Connection: ANSI B 16.1, BS EN 1092(PN10, PN16), DIN 2501(PN10, PN16), BS 10 Table E
4. Disc: Grey iron, Ductile iron, with or without EPDM
5. Seat: Stainless steel, Brass/Bronze etc, Soft seat or seal: EPDM, NBR
6. Testing: API 598, ISO 5208
7. Options: Lever, Gearbox operate, Electric actuator, Pneumatic operator, Opening indicator, With limit switch, Others.
8. Type: Non rising stem, Rising stem
9. Finishing: Epoxy coating, Painting etc
10. Usage: Water supply and drainage, Electric power, Petrochemical, Metallurgical, Firefighting / Fire fighting, or other industries.

5.FAQ
1. What's are the characteristics of gate valve?
The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar, so gate valves are often used when a straight-line flow of fluid and minimum restriction is desired. The gate faces can form a wedge shape or they can be parallel.
2.  What is the structure?
Bonnets provide leakproof closure for the valve body. Gate valves may have a screw-in, union, or bolted bonnet. Screw-in bonnet is the simplest, offering a durable, pressure-tight seal. Union bonnet is suitable for applications requiring frequent inspection and cleaning. It also gives the body added strength. Bolted bonnet is used for larger valves and higher pressure applications.

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Q:What are mine valves?
You want to see what works on the use of what media, in the choice of what type of valve is more appropriate. Shanghai HuquanValve manufacturers, veteran enterprises, trustworthy.
Q:What is the purpose of the valve?
3. Change the direction of the medium flow in the pipeline. Such as the distribution of valves, three way cock, three or four ball valve etc..4, stop the medium back flow in the pipeline. A variety of different structures such as check valve, valve etc..5, separation medium. Such as different structures of steam traps, air traps and so on.
Q:What does the whole copper valve mean?
Industrial oxygen pipes on the valve are all copper valve, hand wheel is not. The market had had 4 6 1 inch screw valve also has a lot of full copper. The tap also has all brass. The valve body and the inside are all copper.
Q:How can I install the water pipe valve?
The new spool to buy off, installed in the old spool that. You don't have the same brand. You may not be able to load it. It's better to have the same brand
Q:How do you understand the valve Z41X-16?
This is a standard set, the landlord himself to check the JB/T308 standard, Baidu library, some, and is free to download:JB/T 308-2004 valve type method of preparation clear EditionZ = gate valve4 = connection: flange1 = structural form: open rod single gateX = sealing surface material: Rubber16 = nominal pressure: 1.6MPa16 there is no letter behind it indicates that the body is made of cast iron
Q:What does the "PN" mark on the valve mean?
The valve will usually be marked with "DN.PN." these two signs,DN refers to the valve path, and PN refers to the pressure levelFor example: DN25, PN16Refers to the valve diameter of 25mm valve, the pressure is 16 kg (1.6Mpa)
Q:What does the "Z45T-16" valve mean?
Z - gate valve4 - flange connection5 - Dark pole, stem non lifting (gate valve structure)T - copper alloy, valve sealing face code16 - pressure code, 1.6MPaMaterial code for grey cast iron valves of nominal pressure less than or equal to PN16 shall be omitted in model preparation.May refer to JB/T 308 valve model compilation method
Q:What is the valve before and after the pump?
General pump should be installed before and after the pressure regulating valve, pump installed before the pressure drop valve, pump installed after the pressure regulator valve!
Q:How can the valve actuators be classified?
Various types of valves, with the continuous improvement of various types of equipment, process, the types of valves are still increasing. But generally speaking, they can be divided into two major groups.(1) automatic valve. A valve that moves by itself depending on the capacity of a medium (liquid, air, steam, etc.). Such as safety valve, pressure reducing valve, check valve, steam trap, air trap, emergency shut-off valve and so on. (2) drive valve. A valve operated by hand, power, hydraulic, or pneumatic. Such as gate valve, globe valve, throttle valve, regulating valve, butterfly valve, ball valve, plug valve and so on.
Q:What is called protective valve, and other valves what is the difference?
Protection valve should be in the air defense valve, can be copper gate valve. (according to the specific use of civil air defense requirements, design institute does not count).2, while the protection valve should be a locking device with the valve, not the general valve can be replaced.

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