product description:
The composite exhaust valve is installed in the high-speed intake and exhaust position, and quickly exhausts the air in the pipeline when filling with water. When the pipeline is emptied, it sucks in air to keep the drainage unobstructed. When the pipeline is working normally, it can continuously exhaust the separated air. When water hammer occurs, the composite exhaust valve automatically supplements air into the pipeline to avoid negative pressure and prevent water hammer from harming the pipeline.
Technical Parameters:
Nominal diameter: DN50~ DN200mm
Nominal pressure: PN0.6~2.5MPa
Use medium: water
Operating temperature: normal temperature
Design standard: Design and manufacturing standard CJ/T217 "Water supply pipeline composite high-speed inlet and exhaust valve", flange connection standard GB/T17241.6 "Integral cast iron flange", test and inspection standard CJ/T217 "Water supply pipeline composite High speed intake and exhaust valve》
Features:
1. High speed and large amount of exhaust: adopt full-size outlet and inlet with maximum exhaust and suction effect. When the pipe starts to enter water, the gas in the pipe can be quickly discharged. When there is negative pressure in the pipeline, it can supply air in time;
2. Micro exhaust: When the pipe is filled with water, the main float ball will rise and float to seal the main exhaust port. A small amount of gas generated during operation will be discharged through the micro exhaust valve to avoid gas accumulation in the pipeline；
3. The micro exhaust valve adopts a rolling shutter type sealing structure, which can quickly remove a small amount of accumulated gas and can quickly seal;
4. Quick inhalation: When the water flow in the pipeline is interrupted or negative pressure is generated, the float ball will fall, open the main exhaust port and quickly inhale air to protect the pipeline from damage;
5. Both the exhaust valve and the micro exhaust valve can automatically exhaust and seal automatically, eliminating the hidden danger of manual operation. When there are multiple segments of gas or multiple airbags in the pipeline, not only the first segment of gas or airbags can be discharged at high speed, but also multiple segments of gas or airbags can be discharged at high speed, in time, and continuously;
6. The large vent hole is sealed by the contact between the metal float and the rubber sealing seat. The double-line seal is adopted. The metal float first contacts the stop of the sealing seat to form the first line seal. When the pressure reaches a certain level, the float Form a second line seal where it touches the inclined surface of the seal seat to ensure a tight seal;
7. All metal floats are used, which can withstand a pressure test of 7.0MPa.
product description:
The composite exhaust valve is installed in the high-speed intake and exhaust position, and quickly exhausts the air in the pipeline when filling with water. When the pipeline is emptied, it sucks in air to keep the drainage unobstructed. When the pipeline is working normally, it can continuously exhaust the separated air. When water hammer occurs, the composite exhaust valve automatically supplements air into the pipeline to avoid negative pressure and prevent water hammer from harming the pipeline.
Technical Parameters:
Nominal diameter: DN50~ DN200mm
Nominal pressure: PN0.6~2.5MPa
Use medium: water
Operating temperature: normal temperature
Design standard: Design and manufacturing standard CJ/T217 "Water supply pipeline composite high-speed inlet and exhaust valve", flange connection standard GB/T17241.6 "Integral cast iron flange", test and inspection standard CJ/T217 "Water supply pipeline composite High speed intake and exhaust valve》
Features:
1. High speed and large amount of exhaust: adopt full-size outlet and inlet with maximum exhaust and suction effect. When the pipe starts to enter water, the gas in the pipe can be quickly discharged. When there is negative pressure in the pipeline, it can supply air in time;
2. Micro exhaust: When the pipe is filled with water, the main float ball will rise and float to seal the main exhaust port. A small amount of gas generated during operation will be discharged through the micro exhaust valve to avoid gas accumulation in the pipeline；
3. The micro exhaust valve adopts a rolling shutter type sealing structure, which can quickly remove a small amount of accumulated gas and can quickly seal;
4. Quick inhalation: When the water flow in the pipeline is interrupted or negative pressure is generated, the float ball will fall, open the main exhaust port and quickly inhale air to protect the pipeline from damage;
5. Both the exhaust valve and the micro exhaust valve can automatically exhaust and seal automatically, eliminating the hidden danger of manual operation. When there are multiple segments of gas or multiple airbags in the pipeline, not only the first segment of gas or airbags can be discharged at high speed, but also multiple segments of gas or airbags can be discharged at high speed, in time, and continuously;
6. The large vent hole is sealed by the contact between the metal float and the rubber sealing seat. The double-line seal is adopted. The metal float first contacts the stop of the sealing seat to form the first line seal. When the pressure reaches a certain level, the float Form a second line seal where it touches the inclined surface of the seal seat to ensure a tight seal;
7. All metal floats are used, which can withstand a pressure test of 7.0MPa.
