Source: PulsafeederFluid handling tech group Pulsafeeder has announced an addition to its PulsaPro line of hydraulically actuated diaphragm metering pumps, with the introduction of the Hypo Valve, which pumps effervescent fluids such as sodium hypochlorite.

The Hypo Valve is designed to manage off-gassing in dosing applications. The Hypo Valve technology allows pressurized process fluid to cyclically flush liquid and vapors through the pump’s discharge check system, while maintaining high performance and chemical dosing accuracy. This prevents common challenges such as vapor-lock, which can lead to reduced capacity and inaccurate chemical dosing, while also avoiding unnecessary maintenance work.

When pumping effervescent fluids, oxygen can continuously accumulate within the reagent head, affecting a pump’s performance and requiring user intervention to purge the gas. The Hypo Valve features a closed loop vapor-handling system and a uniquely sealed solenoid valve that automatically evacuates trapped vapors from the reagent head. PulsaPro Pumps, configured with the Hypo Valve, are self-priming for faster and more efficient commissioning. With the addition of this technology, the PulsaPro pump efficiently handles off-gassing chemicals, such as sodium hypochlorite. It also reduces monitoring requirements and maximizes uptime for the system.

The patented Hypo Valve design is based on technology that has been deployed in the field for decades, through PulsaPro’s predecessor Pulsar and Pulsar Shadow pumps. The Hypo Valve option is integrated directly into the PulsaPro pump — so it does not require ancillary piping or additional equipment to effectively address sodium hypochlorite disinfection applications.

“The PulsaPro family of pumps is widely used for water and wastewater treatment applications in power plants, chemical plants, refineries, upstream oil and gas environments and in municipal treatment plants, and the addition of the Hypo Valve will help anyone metering Sodium Hypochlorite or other gas-entrained fluids in these environments,” said Pulsafeeder’s PLM, Bobbie Montagno. “This latest enhancement illustrates our commitment to addressing the challenging problems our customers face and making their job as easy as possible.”