Brass Suction Valve Screw Vacuum Break Valve

• Media: Water
• Standard: Water Vapour Oil
• Certification: CCC, RoHS, ISO, CE
• Temperature: High Temperature
• Connection: Flange
• Valve Seat: Double-Seat
• Model NO.: Brass suction valve screw vacuum break valve
• Structure: Piston
• Material: Cast Iron
• Transport Package: Wooden Box
• Specification: DN15-DN800
• Trademark: XC
• Origin: China
• HS Code: 8421219990
• Production Capacity: 9999

Product Description

Brass vacuum break valve
(1) When the following pipes are directly connected from the domestic drinking water pipes in the community or buildings, the vacuum breaker should be set on these water pipes.
a. When the air gap between the water filling pipe outlet and the overflow water level of the swimming pool, the upstream music pool, the Jacuzzi pool, the water feature pool, the circulating cooling water collecting pool, etc., is less than 2.5 times the diameter of the outlet pipe, the vacuum breaker is installed on the filling (filling) water pipe
b. Green space sprinkler irrigation without chemical agents? When the sprinkler head is underground or automatic lifting type, install a broken vacuum valve at the beginning of the water diversion pipe
c. Fire fighting? (hose) reel;
d. Outlet connection of hose flushing water nozzle and water supply pipe.
(2) A vacuum breaker and an exhaust valve should be set at the top of the water supply riser.


Brass vacuum break valve working principle

Vacuum breaker is also known as vacuum breaker valve or vacuum breaker valve or anti-negative pressure valve, it is used to automatically eliminate the vacuum in the water supply pipeline, effectively prevent siphon backflow, eliminate backflow pollution. Backflow pollution has a great impact on water quality, and even endangers life when it is serious. Therefore, the current water supply code stipulates that vacuum breakers must be installed. Commonly used vacuum breakers are atmospheric type, pressure type and hose type. Our products are common atmospheric vacuum breakers. The atmospheric vacuum breaker can remove the vacuum by introducing the atmosphere when the pressure in the water supply pipe is less than atmospheric pressure. After the balance is reached, the system is automatically closed, which protects the system.
Brass vacuum break valve application ***
Used as steam heat exchange equipment protection, after steam stop, due to the condensation of steam in the equipment, forming a vacuum in the equipment and some components in the system easy to cause damage to the equipment and the system, the valve in the equipment vacuum reached a certain value, automatically open, introduce air, eliminate the vacuum in the equipment and the system to play a protective role in the equipment and the system, in the normal operation of the equipment, it closed tight, No fluid leakage is allowed, the vacuum can also be controlled in a certain range, when the vacuum pressure rises to a certain value will automatically open into the air, the vacuum drops to a certain value will automatically close the air vent so that the vacuum control in a certain range