Hx-Dp Siphon 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.: HX-DP
• Structure: Piston
• Material: Cast Iron
• Transport Package: Wooden Box
• Specification: DN15-DN800
• Trademark: XC
• Origin: China
• HS Code: 8421219990
• Production Capacity: 9999

Product Description

HX-DP normally open siphon failure valve structure can be divided into water chamber, air chamber, main and secondary electromagnetic operating mechanism and electrical control box. The water chamber part is connected with the water main pipeline, the air chamber is connected with the atmosphere, the main and auxiliary electromagnetic manipulator is installed on the left and right sides of the valve, and the electrical control box is configured and installed in the nearest place according to the specific design requirements.
After the
valve electrical control module is energized, the main and secondary electromagnetic operating mechanism is under the action of the magnet suction, this time the valve spindle moves, the two valve disc rubber seal rings installed on the spindle and the two valve seats are sealed, then the atmosphere of the water chamber and the air chamber is cut off to form a siphon.

Valve electrical control module power off, the electromagnet immediately separated, in the energy storage spring driving action, the two valve disc on the main shaft move to the right, at this time the valve and the seat quickly separated, due to the negative pressure vacuum in the main pipeline, the atmosphere through the air cavity rapid flooding into the chamber and the main pipe interconnect, destroy the siphon phenomenon, to achieve water separation.

Q&A

1. What is a siphon water pipeline?
A low water level water source to the high water level of the water supply, both sides of the pipe are submerged in the water, in the water transmission process does not contact the atmosphere of the water transmission way, called siphon water transmission channel.

2. Is siphon water transfer more energy saving than direct water transfer?
Siphon water transmission can save more than 30% of energy, because siphon water transmission in the process of water transmission is not required energy consumption (in theory), only need to pump water at the start of the need for energy consumption, water in the vacuum water transmission process is a flow, do not need energy consumption.

3. Why install the siphon damage valve?
Siphon damage valve is a very important equipment, which is ignored by everyone. If the siphon path does not have a quick opening siphon break valve, it is fatal to the pump station. If the siphon failure valve does not open the valve in time, let the atmosphere enter the mother pipe, destroy the siphon phenomenon, high water level water to flow into the pump, the pump impeller to turn, will cause the water wheel escape event, resulting in huge economic losses.

4. Where is the correct installation position of the siphon damage valve?
The siphon failure valve is installed in the position of 15 degrees before the water outlet of the water pipeline, because this position is the place where the pipeline air gathers, as long as the valve is installed in this place is one of the guarantee factors for rapid cut-off.


5, how to choose the right type of siphon failure valve?
According to the theoretical calculation, the siphon failure valve only needs to take 5-10% of the transverse load area of the main pipeline, which can destroy the siphon phenomenon.

HXDP pressure balance siphon damage valve only need to take 5% of the transverse load area of the main
pipe pipe is 1400mm, its transverse load area is 0.7*0.7*3.14=1.54
Siphon damage valve 1.54*5%=0.08
Valve selection: DN= *2*1.15=367mm
siphon damage of the transverse load area of 5%
Energy consumption rate 0.15%

HXQP pneumatic siphon damage valve only need to take the main pipe of the transverse load area of 8%
pipe is 1400mm, Its transverse load area is 0.7*0.7*3.14=1.54
siphon damage valve 1.54*6%=0.093
Valve selection: DN= *2*1.15= 6% of the transverse load area of 395mm
siphon damage
Energy consumption rate 0.15%

HXZP self-reliant siphon damage valve only needs to take 10% of the transverse load area of the main
pipe pipe is 1400mm, Its transverse load area is 0.7*0.7*3.14=1.54
siphon damage valve 1.54*10%=0.154
Valve selection: DN= *2=510mm
siphon damage transverse load area 10%
Energy consumption rate 0.15%

6, siphon damage valve can replace siphon type water pipe other equipment?
Siphon water supply pipeline cut-off is 2 ways, they are compared as follows.
A, a quick gate (butterfly valve) cut-off. If the butterfly valve is selected, the pipe needs to be equipped with the same caliber butterfly valve and damped check valve, and it also needs to be equipped with maintenance accident gate. When the pump stops, the water flow to the turn check valve is closed, so that the flow can be cut off.

B, one is the siphon break valve cut off. When the pump stops, open the siphon failure valve, the air enters the pipeline, and the vacuum can be cut off. The valve repair of this system is very troublesome and requires a lot of factory work.
For the above two cut-off modes, a small-caliber siphon break valve can replace the large-caliber butterfly valve and check valve. This system valve is on the outside of the pipe, and the overhaul is very simple and economical.