32
Drain port (Vent hole)
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Leaked liquid drains off through the drain port if the diaphragm is ruptured accidentally.
Use a chemically-resistant tube to the port and a drain tank to safely collect the liquid.
NOTE
• Do not plug the drain port. The port functions as a vent hole to keep the pressure behind the diaphragm back
atmospheric.
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-
ment behind the diaphragm back.
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Do not leave this condition as it is. Fumes or vapors from certain solutions may move up into the pump via the
drain tube and attack its inside.
Drain port (vent hole)
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Inner diameter: 6mm
Outer diameter: 12mm or below
(ø6)
(ø7.5)
(20)
Empty drain tank
Do not locate the drain tube
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Do not take in fumes from
corrosive chemicals such as
sodium hypochlorite.
Noncorrosive chemicals in a
supply tank. The drain tube end
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