Why use a three prevention check valve? At present, all kinds of check valves in use (including multi-function control type check valves), especially the "check valve relying on spring force", have not only failed in the check effect after long-term use, but also have large water loss and increased water and energy consumption due to the existence of springs and extreme reduction of the valve diameter. If the water company replaces other types of products with "loose knot three-prevention valve"on a large scale, it can greatly save energy consumption.
The "three prevention valve" is designed to be installed behind the water meter to ensure accurate measurement of the water meter.
Explanation of Three-Prevention
First prevention:
Anti-rotation→water meter rotates without water flowing.
Second prevention:
Anti-dripping (improving the sensitivity of the water meter)→the problem of non-metering of the water meter due to the phenomenon of "running, emitting dripping and leaking”.
Third prevention:
Anti-backflow (anti-pollution partition)→sewage and hot water device flow Backflow.
Main technical parameters
Nominal pressure
1.6MPa
Working Medium
Tap water
Working Temperature
0℃~60℃
Design Specification
GB/T8464-2008
Pipe thread conform to lS0228 standard(GB/T7307)
Product size:
DN
Outside & within size
Total length (mm)
Remarks
15
1/2"&3/4"
45
H32X-16TBH
20
3/4"*1“
50
H32X-16TBH
25
1”&1 1/4“
58
H32X-16TBH
Installation and use suggestion:
In order to ensure the accurate measurement of the water meter, the "three prevention valve" is designed to be installed behind the water meter (replace one pipe joint behind the meter). There is an arrow mark on the valve body. lt must be installed behind the water meter. lf it is installed in front of the meter by mistake, the water cannot be discharged.
FAQ:
Q. Can I have my own Logo on the product?
A: Yes, OEM service is available.
Q.What information should I let you know if I want to get a quotation?
A: Size, design standard, material, package, Quantities, etc... Please send us some pictures and designs for checking if possible so we can do best as your request. Otherwise, we will recommend relevant products with details for your reference.
Q: What is your terms of delivery?
A: We accept EXW,FOB,CIF,etc. You can choose the one which is the most convenient for you.
Q: What's the package and how do you ship the goods?
A: Usually is wood pallet as your requst. We usually ship by sea. Airline shipping is also optional.
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