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Hawle Air Release Valves, No. 9876 and No. 9842

No. 9876 Design features:
  • Automatic, dynamic air release valve
  • PE shield for UV protection
  • The internal thread inlet is reinforced with a stainless steel ring
  • Connection variants: Internal thread or flange
  • Insect protective grid (2" valve)
  • Installation: upright, preferably at the highest point in the pipeline together with isolating valves
  • Air valve for releasing air only: on request (minimum pressure of 0,3 bar needed)
  • No. 9842 Design features
  • Automatic 3-way air release valve with cylindrical floats
  • Ventilation outlet in nominal size (large opening cross-section according to the flange size)
  • Flange pursuant to EN 1092-2 (DN 50 can also be shipped with threaded connection 2")
  • Efficient, high performance ventilation protects pipeline from vacuum related damages
  • High velocity air discharge prevents premature closure, thus safeguarding optimum ventilation during filling process of pipe lines or containers
  • 2-level ventilation system provides effective protection against pressure shocks during high ventilation speeds through a small opening
  • Continuously reliable ventilation of air inlets under normal operating conditions
  • Compact construction, low volume and weight
  • Robust and reliable technology
  • Hawle Air Release Valves Range

    Hawle No. 9876

  • Automatic, dynamic air release valve
  • PE shield for UV protection
  • The internal thread inlet is reinforced with a stainless steel ring
  • Connection variants: Internal thread or flange
  • Insect protective grid (2" valve)
  • Installation: upright, preferably at the highest point in the pipeline together with isolating valves
  • Air valve for releasing air only: on request (minimum pressure of 0,3 bar needed)
  •   DN   MOP (PN) Working pressure bar   Size of the opening   Ø A   Ø A1   H   H1   Weight
      2" 6 0,1 - 6   900/2 mm2   160   175   305   320 2,90
    16 1 - 16 3,40

    Hawle No. 9842

  • Automatic 3-way air release valve with cylindrical floats
  • Ventilation outlet in nominal size (large opening cross-section according to the flange size)
  • Flange pursuant to EN 1092-2 (DN 50 can also be shipped with threaded connection 2")
  • Efficient, high performance ventilation protects pipeline from vacuum related damages
  • High velocity air discharge prevents premature closure, thus safeguarding optimum ventilation during filling process of pipe lines or containers
  • 2-level ventilation system provides effective protection against pressure shocks during high ventilation speeds through a small opening
  • Continuously reliable ventilation of air inlets under normal operating conditions
  • Compact construction, low volume and weight
  • Robust and reliable technology
  • DN MOP (PN) Ø D Ø K C Bolts Ø B H Weight
    Quantity Ø d2
    50   10/16 165 125 19 4 19 200 355 20
    80 200 160 19 8 19 240 420 26
    100 220 180 19 8 19 255 420 28
    150 285 240 19 8 23 365 580 90
    200 10 340 295 20 8 23 410 630 98
    200 16 340 295 20 12 23 410 630 98
    250 10 405 355 22 12 23 540 820 160
    250 16 405 355 22 12 28 540 820 160
    300 16 460 410 24,5 12 28 650 927 180
    DN MOP (PN) Ø D Ø K C Bolts Ø B H Weight
    Quantity Ø d2
    50   25 165 125 19 4 19 200 355 22
    80 200 160 19 8 19 240 420 28
    100 235 190 19 8 23 255 420 30
    150 300 250 20 8 28 365 580 95
    DN MOP (PN) Ø D Ø K C Bolts Ø B H Weight
    Quantity Ø d2
    100 40 235 190 19 8 23 255 420 30