The 2 inch versions of the Marlow air operated diaphragm (AOD) pumps are manufactured from polypropylene or PVDF. They are resistant to aggressive chemicals and operated with oil-free compressed air. All dynamic sealing is achieved without O-rings, no lubrication is required. The air valve is 100% stallfree, even in low pressure applications. In addition to starting first time every time, this valve is suited to bulk transfer of materials such as dry powder. Twin exhaust mufflers provide whisper-quiet operation. Re-engineered exhaust paths minimise the possibility of icing due to air-decompression. Dual air connections accommodate air from either side of the air valve, which gives greater flexibility for installation.
Jabsco
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Further information cpp-219
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