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Chemical Pumps
Neptune Hydraulically Actuated “DIA-PUMPS”Variable Oil By-pas stroke adjustment allows better valve performance than variable linkage designs. The valve checks have extra time to seat even in heavy liquids since they are idle during the by-pass portion of the discharge stroke.
All Neptune "dia-Pumps" are adjustable from 1 0% through 1 00% of capacity by micrometer dial.
Neptune Series 7000
Mechanically Actuated Diaphragm Metering PumpsThe Neptune Series 7000 “dia-PUMP” is a mechanically actuated diaphragm metering pump designed for water, wastewater and process applications.
Benefits
The mechanical design eliminates the use of contour plates on the liquid side of the diaphragm. The simple, straight through valve and head design allows improved flow characteristics.
- Self-priming
- Superior performance when pumping chemicals such as sodium hypochlorite, which can off-gas
- Suction lift exceeding 20 ft. on water-like chemicals
- Easily handles viscosities in excess of 5000 cps
Features
- Capacities to 300 gph; Pressures to 150 psi
- Pump capacity is adjustable by micrometer dial while the pump is running
- 10 turn micrometer dial calibrated in 1 % increments; Bright colored contrasted dial protected by clear PVC covering
- Micrometer stroke length adjustment allows 10: 1 turndown
- Variable speed drives allow greater turndown range or automatic capacity control
- All moving parts run submerged in oil for extended service
- All models accept standard 56C frame motors
Series 7000 "Dia-Pump" (PDF 177kb)
Electronic Metering Pumps
Degassing Head OptionAvailable on any PZ or PZi model simply by adding "AR" to the front end of he model number. Example: PZ- 1 with degassing head becomes Model ARPZ-31.
Series PZ / PZi / PZig (PDF 1,646kb)
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