Industrial Grey PVC-U Pipe And Fittings SCH80 Industrial PVC Valves
C-PVC Ventilation Valve Type 591
• Low investment cost • Long lifetime of valves
• Suitable for use as an air bleed valve • Assist in preventing run dry situations • Also, can be used on tanks or pipes to prevent negative pressures / vacuum • C-PVC body with PP float
C-PVC Ventilation Valve Type 591
PP-H Cone / No Spring
SIZE PN FPM 1/2” 16 163 591 102 163 591 112 3/4” 16 163 591 103 163 591 113 1” 16 163 591 104 163 591 114 1.25” 16 163 591 105 163 591 115 1.5” 16 163 591 106 163 591 116 2” 16 163 591 107 163 591 117 2.5” 16 163 591 108 163 591 118 3” 16 163 591 109 163 591 119 4” 16 163 591 110 163 591 120 EPDM
Operation: Deaerate when filling - aerate when emptying
Depending on the filling speed, the float is lifted by the rising level of the liquid. At the same time, gases are removed from the system through the valve. When the pipeline or the storage tank is completely full, the float is pressed into the profile seal and closes the valve. The system is now completely deaerated. When the liquid level sinks as a result of draining, the valve automatically opens again and air can flow in.
Valve Open
Float rises when filling > Deaerate
Valve closed and sealed tight
Float sinks when draining > aerate
66 PAAS Source Book
www.paas.com.au
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