Overview
| brand | Keruifu | Imported or not | no |
| quantity | nine thousand nine hundred and ninety-nine | Nominal diameter | twenty |
| category | Copper valve | Interface form | screw thread |
| Nominal pressure | sixteen | material quality | copper |
| Applicable scope | producing area | Zhejiang | |
| colour | yellow | Functional purpose | |
| Packaging specifications | carton | model | B1-1, B1-2 |
| Customized or not | no | Order number | |
| Nominal diameter | twenty | Applicable temperature | one hundred and twenty |
| Applicable medium | Water, air | standard | National standard |
| flow | 15-30 | ||
Product Details
★★★ Our company solemnly promises that all products of Fanke Ruifu valves have a warranty of 18 months from the factory, and implement the "three guarantees" service
The actual photo of the brass vacuum breaking valve, fire pipeline suction valve, thread vacuum breaking valve, vacuum pipeline suction valve product produced by Kerufu:
Installation precautions:
(1) The air inlet of the vacuum breaker should be downward.
(2) The vacuum breaker should be installed at the top of the pipeline, and the atmospheric vacuum breaker should be more than 150mm above the overflow water level at the outlet; The pressure type vacuum breaker should be at least 300mm higher than the overflow water level at the outlet.
(3) The installation height of the hose type vacuum breaker should be set at least 1000mm above the ground;
Name: Vacuum breaking valve
Specification: DN15-DN65
Usage: water, oil, gas, etc
Pressure: PN1.6
The principle of a vacuum breaker is that when a negative pressure is generated in the system, the pressure difference between atmospheric pressure and system pressure acts on the sealing element, pushing the sealing element and opening the sealing surface to introduce the external atmosphere into the system, causing the system pressure to increase and break the negative pressure until the sealing element falls back down and seals, and the external atmosphere no longer enters the system. Vacuum breakers are widely used in various systems that are prone to generating vacuum, such as fire protection, swimming pools, green space irrigation, water supply and drainage, shipyards, power plants, metallurgy, shipbuilding, and other fields. When the system forms negative pressure, timely suction of air protection systems is necessary.
