? Composite exhaust valve for the highest point of the product pipeline, or where there is breath, excluding gas pipe to clear the pipeline, to work, if not installed exhaust valve, the flow of liquid within the tube to produce dynamic thermal cause gas, a short circuit, so that the water pipeline capacity below standard, and secondly, a power outage occurs when the pipeline operation, the pipeline will pump stops negative pressure, and can cause vibration or broken pipes, exhaust (suction) valve quickly to the air intake pipe to prevent pipe vibration or rupture. ? When composite exhaust valve action principle when the inner tube to start water, plug head stuck in the open position, a lot exhaust, when the air drained, water float valve is lifted, the drive plugs to the closed position, stop a lot of exhaust; delivery when normal water inside the tube, if a small amount of air accumulation in the valve to a considerable extent, the water level dropped valve, float fall, when the air is discharged from the hole. When the pump stops, the water inside the tube is empty, or in the case of the tube when the negative pressure, then plug head is turned on, the intake air to ensure pipeline safety. ? Composite exhaust valve structure and purpose of the valve body for drum-like style of internal main stainless steel float and plugs. The valve is installed at the outlet of the pump Po or Entitlement water pipeline to exclude a large buildup of air ducts, pipes and pumps to improve efficiency, and the inner tube in the event of a negative pressure occurs, the valve can be quickly inhaled air, to the custody of the line due to the negative pressure generated by damaged. ? Composite exhaust valve technical parameters 1 medium: water 2 temperature: room temperature 3 Body: gray iron HT200 4. float and plugs: Stainless steel 5 seal material: NBR 6 valve test pressure: 1.5mpa 7. float, seal test pressure: 0.05-1.1MPA watertight composite exhaust valve parts Material No. Name Material 1 Body HT200 2 valve cover HT200 3 float lever frame SUS 304 4 bronze ZH59 5 杆 cast? Copper ZH59 6 plugs NBR NBR? composite exhaust valve main external and connecting dimensions Model DN DN (mm) Dimensions (mm) HL L1 D D1 D2 z-φd CARX-1.0 CARX-1.6 20 375 290 180 105 75 55 4-12 25 375 290 180 115 85 65 4-14 50 480 360 205 160 125 100 4-14 80 520 405 245 195 160 135 4-18 100 530 405 245 215 180 155 4-18? CARX compound exhaust valve displacement table hourly specifications DN 25 50 80 100 150 200 250 300 350 400 cubic meters / hour 2-88 85-35222-904 34-141376-3179 135-8831 212-8831 305-12717415 -17,309 542-22608 Ordering Information: one, ① composite exhaust valve product name and model ② ③ composite exhaust valve diameter composite exhaust valve with an attachment so our selection right for you???.