Vanton Pump and Equipment Corp. has introduced a programmable, solar-powered chemical dosing system featuring a non-metallic, peristaltic pump for corrosion-free transfer of caustic and acidic treatment chemicals from an integral storage tank to water containment facilities in remote locations.

The Flex-I-Liner model 12 pump uses a rotor mounted on an eccentric shaft to push fluid trapped between a flexible elastomer liner and a solid plastic body block.  According to the company, the self-priming design has no seals to leak or valves to clog and can run dry without damage. The body block can be molded from solid polypropylene, UHMW polyethylene or PTFE, and the flexible liner can be supplied in natural rubber, neoprene, Hypalon, Viton or Nordel.

Suitable for flows to 2 gpm (7.6 lpm) and pressures to 25 psig (1.72 bar) at temperatures to 185°F (85°C), the pump is designed to meter a fixed volume of liquid over user-programmed time intervals. Other solar-powered systems equipped with larger pumps and solar panels handle flows to 10 gpm (38 lpm). A throttling valve on the suction line to the pump allows flow rate adjustment. A 40-watt (0.04-kW) photo-voltaic solar panel charges a 12-VDC deep cell battery that can power the pump’s 1/6-hp (0.12-kW) DC motor on a single charge for three hours continuously, or cumulatively over several days of intermittent operation during which the pump is started and stopped manually, or automatically according to user-programmed dosing schedules.

The system’s base plate and 20-gal (76-l) tank can be fabricated from of solid polypropylene, polyethylene or PVC. The controls are housed in a fiberglass NEMA IV weatherproof enclosure.

An optional manifold with nozzles is available to spray treatment chemicals over a desired area. The self-contained system measures 32 in. L x 24 in. D x 15 in. H (813 mm L x 610 mm D x 381 mm H), weighs 225 lb (102 kg) and is available mounted on casters.

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