Ductile Iron 200X Pressure Reducing Valve

Ductile Iron 200X Pressure Reducing Valve System 1

Ductile Iron 200X Pressure Reducing Valve

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Specifications

1.18 years experience.
2. good painting.
3.Superior rubber quality.
4.various body moulds.

The valve maintains a preset downstream pressure, regardless of upstream pressure or flow

fluctuation. The main valve is controlled by a pilot valve, which makes the main valve modulating

to maintain the downstream pressure.

The main valve comprises valve body, diaphragm, stem assembly, and seat. The valve is

separated by diaphragm into two chambers, up and down. The upper chamber is control

chamber, and down chamber is flow through chamber. The valve stem is driven by diaphragm

up and down, and driven force comes from the differential pressure taken by two sides of

diaphragm.

Structure	Diaphragm
Working Temperature :	120°C
Working pressure	16bar 1.6MPa
Power	Manual
Tubes	Copper
Bolts/Nuts	Stainless steel
Painting:	Deep Blue Epoxy power coating t=250μm
Body/Cover Material	Ductile iron
Temperature of Media	Normal Temperature
Media	Water
Port Size	DN50-600

Q: How about leaking water pipe valve?: 1, if it is household valveA, the valve and pipe connections at the leakage, in the connection, do not rub tape (the best counter clockwise direction, so that when the valve is connected, the more twisted the more tight) ;B, if the valve itself in the leak, there are ways, it is necessary to open the valve, in which to add sealed or O ring, but it is recommended to replace a more convenient.2, if it is industrial valvesA, industrial valves leaking, if not the valve itself in the leak, then in the valve and pipe connections to join the sealing ring,B, if the valve itself is leaking, it is best to return to the manufacturer for maintenance, if not convenient, then only the manufacturers to come here for maintenance.

Q: What is the choice of pneumatic valve or electric valve for ultrafiltration inlet control valve?: Now the UF system is basically full automatic system, that is to choose automatic valve. As for the pneumatic valve or electric valve, depending on your investment and the scene.

Q: Is the valve galvanized?: Butterfly valve gate, some hot-dip galvanized, and other valves are not.

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 is a hot melt valve?: The valve is hot melt and ppR/PE plastic pipe connecting with hot melt connection valves, general valves generally use the threaded connection or flange connection.

Q: someone else's home has valves, but also checked nothing, in addition to telephone repair, there are other ways? emergency: You should live in a high-rise, if there is no power failure, that is, the water tank pump failure, and urge property repair is.I hope I can help you

Q: What's the difference between a valve and a valve?: In fact, the difference is that a set of valves, including two flanges, bolts, flange pad belongs to a set. A valve just doesn't carry those things.

Q: What are the general types of valves?: There are generally 3 types of ball valve, globe valve, ceramic core valve

Q: How can the material be checked by valve approach? What experiments do you need?: (8) the throttle valve does not test the tightness of the closing parts, but the strength test and the tightness test of the stuffing and the gasket shall be carried out.(9) the pressure test, the valve closing force only allows a person's normal physical strength to close; not augmented with tools like leverage (except torque wrench), when the hand wheel diameter is greater than the wait at 320mm, allowing two common off.(10) with a sealed valve, should be taken out of packing for sealing test, sealed after the official closed, check whether leakage. When gas is used as a test, check the water in the stuffing box. When sealing test is carried out, the upper seal is not allowed to be in the tight position.(11) when the valve with drive device is tested and its tightness is tested, the sealing test shall be carried out by using the driving device to close the valve. For manual drive units, seal test shall also be done with the actuating closing valve.(12) the by-pass valve installed on the main valve after the strength test and the sealing test. The strength and tightness test of the main valve is carried out. The main valve should be opened when the closing member is opened.(13) iron valve strength test, the application of Pratia tapping valve and valve cover, check whether there is any leakage.(14) the valve test, in addition to the provisions of the plug valve to allow sealing surface oiling, other valves are not allowed in the sealing surface of the oil test.(15) when the valve pressure test, the blind plate on the valve pressure should not be too large, so as to avoid deformation of the valve, affecting the test results (cast iron valve if pressed too tight, will be damaged).(16) after the valve test pressure, should promptly remove the water and clean the valve, should also be prepared for the test record.

Q: Is there any difference between the valve and the water valve?: There is no difference between the low pressure lubricating oil pump, as long as the excuse right on the line, not to pressure, design pressure ball valve common does not exceed 3MP, the maximum pressure of only small gear pump vane pump is 2.5MP, the other piston pump, gear pump, the pressure is above 6.3MP. Certainly not. Unless using high pressure water pipe valve.

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