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DIAPHRAGM METERING PUMP FEATURES AUTOMATIC AIR RELEASE VALVE
The 500AR features a PVC head design that minimizes internal space eliminating areas where gas can accumulate. All ports slope upward to vent gas through the top of the pump and away from the diaphragm. A full demonstration video can be downloaded from this site. The PVC AR head can be specified on any Neptune Series 500E pump with capacities up to 9 gph. (Units with higher volume capacities purge gas naturally.) Like all Series 500 "dia-PUMPs", the 500AR features a Teflon diaphragm to isolate process chemicals from the pump's working parts and from the environment. This design eliminates packing and seals. All Series 500 models feature a micrometer dial which allows manual adjustment over 10-1 turndown range. Automatic control options include pneumatic or electric stroke length adjustment and variable speed drives. All Neptune Series 500 pumps also feature the unique Variable Oil By-pass[tm] stroke adjustment which allows improved valve performance over variable linkage designs. For more information on the Series 500 explosion-proof diaphragm pumps, contact Neptune Chemical Pump Co., Inc., P.O. Box 247, Lansdale, PA 19446. Tel: 888-3NEPTUNE or 215-699-8700; Fax: 800-255-4017 or 215-699-0370; Web: www.neptune1.com; E-mail: pump@neptune1.com.
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Neptune Chemical Pump Co., Inc. announces the introduction of the 500AR Series hydraulic diaphragm metering pump. The 500AR is designed with an automatic air release valve to be used in sodium hypochlorite service or with other chemicals that off-gas at room temperature.