Ductile Iron 200X Pressure Reducing Valve

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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: Pump, valve, these belong to the material?: In the stainless steel industry category: sheet only belongs to the material! In the mechanical and electrical equipment categories: valves in the screws, gaskets, nuts are materials! This is relative!

Q: Ketem valve relative to other valve companies in the industry what are the advantages?: The electric actuator built-in servo system, no need to add servo amplifier, input 4-20mA signal and 220V AC power supply can control the operation. Compared with the ordinary electric ball valve, the utility model has the advantages of compact structure, small size, light weight, close distance between the valve seat and the end face flange, less material retention, superior sealing performance, etc..

Q: Can the gas valves be switched off regularly?: Now gas stoves have valves, do not have to pass the gas valve, valve, he has the life of the use of frequency, although the switch is not good, long time no operation is not good

Q: What does 1/2 mean in valve specification?: 1/2 inches mean, converted to metric unit is 15mm, belong to small caliber, if the valve specifications, that is, the pipe diameter is 15

Q: How big valves are used in the DN90 pipeline?: If you use a 97 tube, the inner diameter of 89- phi 90., nominal pressure is low, then try to use DN80, DN80 valve diameter of 80, you can try butt welding

Q: What should be checked before using the valve?: 5, check valve disc or spool movement is flexible and accurate, no bias, displacement or skew phenomenon6, spring-loaded safety valve should be sealed, positioning lever type safety valve should have the weight of the device7, rubber lining, lining enamel and plastic lined valve body surface should be smooth, the lining layer and the substrate firmly, no crack, blister defects, using high frequency electric spark generator to inspect the lining surface, not found in liner breakdown (white flash phenomenon) is qualified8, the valve flange sealing surface should meet the requirements, and shall not have radial scratches

Q: What valve is the VENT?: VENT position usually refers to the valve on the leak detection valve, relief valve, but not the same as the use of DRAIN, which is used for sewage.

Q: What is the flow medium of the valve?: Valve flow medium refers to the valve through the fluid, gas and liquid.For example: water, air, oil, gas, steam, acid, alkali, gas, heat conduction oil and so on, are called medium.

Q: How to open the gas valve with drawings: 1, according to the routine, now the handle position shows that the valve is open.2, if the handle rotated 90 degrees, the gas pipeline gas has no change, should be the stem slipped, can not drive the valve ball rotation. Try rotating several times. If it still doesn't work, ask a professional to check it out.

Q: What is the BV valve?: End code description link example (matching) BV PL endpoint endpoint oblique butt welding wire socket, socket welding (SWF) FL flange connection flange connecting pipe in the AutoCAD Plant 3D in connection with the pipe elements form in many ways, details are as follows: the end code description link example (matching) PL endpoint, outside the wire socket socketweld (SWF) BV oblique butt THDM external screw thread connection endpoint (THDF) THDF (THDM) SW screw thread connection wire socket welding socket welding flange connection flange connection FL WF flat flat flange link (FL) LAP (PL) GRV lap lap ring groove is connected with the connecting groove (PL) SO loose plate (PL) PPL plastic welding wire plane PSW plastic body adhesive (PPL) LFL LLP LUG straight straight flange lap lug flange (FL) BEL L bell shaped joint, bell and socket welding (SPIG), SPIG socket welding, bell shaped joint and socket welding (BELL) TAP plug cock (PL)

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