A ballcock (also balltap or float valve) is a mechanism or machine for filling water tanks, such as those found in flush toilets, while avoiding overflow and (in the event of low water pressure) backflow. The modern ballcock was invented by José Antonio de Alzate y RamÃrez, a Mexican priest and scientist, who described the device in 1790 in the Gaceta de Literatura Méxicana.[1] It consists of a valve connected to a hollow sealed float by means of a lever, mounted near the top of the tank. The float is often ball-shaped, hence the name ballcock. The valve is connected to the incoming water supply, and is opened and closed by the lever which has the float mounted on the end. When the water level rises, the float rises with it; once it rises to a pre-set level, the mechanism forces the lever to close the valve and shut off the water flow. This is an example of negative feedback and of proportional control. Ball Cock, Brass Ball Bibcock, Ballcock Valve, Toilet Ballcock Valve ZHEJIANG KINGSIR VALVE CO., LTD. , https://www.kingsirvalve.com
 Plastic Wire Meter Seal with Serial Number (YL-M01)
Material :
 PC + ABS
Total Length:
300mm
Tensile Strength:
more than 10kg
Colors:
Green,Blue,Red,Yellow,can be customizedÂ
Printing:
Logo,Company's name,consecutives number
Packing:
standard:100pcs/bag,5000pcs/carton
Application:
Departmen of water and power,Finiance,Postal, supermarket, express delivery, petrochemical, Valves, mining packing seal, customs, etc.This is a one-time use of seals, a can not be used again, can play the role of confidentiality.
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About Yingli:
  Established in 2000, Foshan Shunde Ying Li Industrial Co., Ltd is located in RongguiÂ
 town of Shunde,Guangdong Province,China.For over 15 years, we are devoted to developing and producing plastic cable tie, electrical wires accessories, binds, buckles, transportation security products and various of seal markers, and built up an  experienced  technical and scientific management efficient team.Welcome to contact with us for any query at tel:0086-757-28800236 or visit our website:  www.chinayumai.com for more information.Â
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Plastic Wire Meter Seal with Serial Number (YL-M01)
Model NO.: YL-M01
Standard: Standard, Nonstandard
Total Length: 300mm
Printing Context: Simple Design as Limited Small Area
Printing: Laser Printings
Colors: Various Color Options
Seal Type: One-Time Using
Trademark: Yinlig
Specification: No
Origin: China