Neptune Mechanical Diaphragm Metering Pumps Offer High-Pressure, Flow-Through Design

Neptune Mechanical Diaphragm Metering Pumps Offer High-Pressure, Flow-Through Design
Series MP7000 from Neptune Chemical Pump Co.

Interested in Pumps?

Get Pumps articles, news and videos right in your inbox! Sign up now.

Pumps + Get Alerts

Series MP7000 mechanically actuated diaphragm metering pumps from the Neptune Chemical Pump Co., part of PSG, a Dover company, are designed for water and wastewater applications. The self-priming pumps have a maximum capacity of 275 gph and pressures to 235 psi. The pumps feature a metallic, corrosion-resistant gearbox, oversize check valves to improve performance (minimum friction losses), bronze gears for quiet running and longer service life, suction lift capacity exceeding 20 feet on water-like chemicals, and the ability to handle viscosities in excess of 2,500 cps.

“There are applications that are above the normal 100-150 psi maximum capabilities of most mechanically actuated diaphragm metering pumps, where hydraulically actuated diaphragm metering pumps need to be employed to meet higher pressure requirements,” says Tom O’Donnell, director of business development for PSG Dover.

“Neptune can now handle these applications with a mechanically actuated diaphragm meter pump,” he says. “Say you’re pumping into a 200 psi line, instead of having to use a hydraulic-actuated diaphragm metering pump to overcome the higher pressure, a Neptune mechanically actuated diaphragm metering pump can be utilized, offering a lower price and ease of operation. One of the benefits of the mechanically actuated diaphragm metering pump is the ease of startup. No need to warm up the hydraulic fluid and bleed the air out of the oil.”

The Neptune mechanically actuated design eliminates the use of contour plates on the liquid side of the diaphragm. The straight-through valve and head allows for improved flow when pumping chemicals such as sodium hypochlorite, which can off-gas.

“There’s no place for the gas bubbles to lodge and bind the pump,” O’Donnell says.

Accessories include a leak detection sensor.

“If you rupture the diaphragm, the sensor is activated,” he says. “It can be wired to a control panel to shut down the pump, light a light, or sound an alarm.”

The mechanical pump can also be ordered with a variable-frequency drive for automatic/remote control. 215/699-8700;


Comments on this site are submitted by users and are not endorsed by nor do they reflect the views or opinions of COLE Publishing, Inc. Comments are moderated before being posted.