• High    Quality   Heavy     stop     valve System 1
High    Quality   Heavy     stop     valve

High Quality Heavy stop valve

Ref Price:
$10.27 / watt get latest price
Loading Port:
Ningbo
Payment Terms:
TT or LC
Min Order Qty:
1000 watt
Supply Capability:
100000 watt/month

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High    Quality   Heavy     stop     valveHeavy stop valve   size:20-63

1.Material:Random Polypropylene(Hyosung R200P); 
2.ISO9001&ISO14001; 
3.Standard:GB/T 18742.3-2002, DIN8077/8078; 
4.OEM also ok

 

Q:What does 3/4''mean in the name of the valve?
3/4''is the valve diameter, said 20MM, inches, equivalent to DN20 of the valve, is also said to be the 6 interface we say old foreman
Q:What is the difference between the adjustable range of valve 50:1 and 100:1?
One is 50 times, and the other is 100 times.
Q:Where is the Shanghai valve? What brand is good?
To tell the truth, I think the Shanghai Yang Yi valve is good, in product quality, as well as product packaging are very good, especially after sale service, are free of charge
Q:How can you replace the other valve when the main valve is not closed and no water is stopped?
You really want to go to the big water to fix the valve and be prepared for the follow-up, just in case
Q:Which valves are installed in a directional manner?
Very simple answer to your valve, in addition to gate valve and butterfly valve (single line up, first closed), such valves are not directional, and other have
Q:How to better maintain the valve?
How to maintain the valve?Enter the same as other mechanical products, but also the need for maintenance. This work well, can extend the service life of the valve, the following will introduce the valve maintenanceStorage and maintenanceThe maintenance of the purpose is to keep the valve in the custody of the damage, or lower quality. In fact, improper storage is one of the important reasons for valve damageThe valve custody, should be arranged in good order, a small valve on the shelves, large valves can be neatly arranged in the warehouse on the ground, not arbitrary lumber pile, do not let the flange face contact with the ground. This is not only for beauty, mainly to protect the valve, not to touch badBecause the storage and handling properly, hand wheel broken, crooked stem touch the fixed nut hand wheel and stem loosening loss and so on, these should avoid unnecessary losses.We temporarily on the short-term use of the valve, should remove the asbestos packing, in order to avoid electrochemical corrosion damage to the valve stem.I just entered the library on the valve, to conduct inspections, such as during transport into the water or dirt to wipe clean, re storedThe import and export of valves to use wax paper or plastic sheet sealed to prevent dirt insideThe valves on the machined surface rust in the atmosphere should be coated with anti rust oil, protectI placed outside the valve, must be covered with linoleum or tarpaulins like rain, dust items. Keep the storage of the valve clean and dry
Q:Why can't the clip type check valve be directly connected with the pipe mouth or other valves?
The clip type check valve is made up of two discs to prevent backflow.If the clip check valve is connected to the other valve, the disc may touch the valve and cause the check valve not to be fully opened or closed. This is a preliminary analysis of "enter the valve", for reference only!
Q:High and low pressure valve is how to distinguish?
Vacuum valve - valve with operating pressure below standard atmospheric pressure.Low pressure valve - nominal pressure PN is less than 1.6MPa valve.Medium pressure valve - nominal pressure PN 2.5~6.4MPa valve.High pressure valve - nominal pressure PN10.0~80.0MPa valve.Ultra high pressure valve - nominal pressure PN greater than 100MPa valve.
Q:Representation of several types of valves
Valve body material:Z grey castings (usually not shown)X malleable ironQ nodular cast ironT copper alloyB lead alloyII chromium molybdenum alloy steelL chrome alloyP chromium nickel steelV (II) chromium molybdenum vanadium alloy steelR cr.ni.mo.ti steelF fluoroplasticP leather (Shen Penggang)S plasticD nitrided steelCJ lining adhesiveTC magnetic boringCS lined plasticCQ lined with leadW sealing ring is machined from valve body, C carbon steel (generally not shown)G ferrosilicon
Q:What does valve J41H-16C mean?
J- stop valve4- flange type connection1- structure typeH- alloy steel seal16- nominal pressure 16 kgC- body carbon steel

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