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Wednesday, September 3, 2014

Blackmer Updates General-Purpose Sliding Vane Pump with 180-Degree Porting

Blackmer's NPH4F sliding vane pump is designed for non-corrosive fluid processing and transfer, featuring 180-deg inline porting.

Blackmer’s NPH4F sliding vane pump is designed for non-corrosive fluid processing and transfer, featuring 180-deg inline porting.

Grand Rapids, Mich.-based Blackmer, which supplies positive displacement and centrifugal pump, and reciprocating compressor technologies, last week commercialized its NPH4F general-purpose sliding vane pump. The NPH4F is a positive-displacement sliding vane pump specifically designed to for fluid processing and transfer applications with a wide range of clean, non-corrosive fluids. The internal sleeve bearing pumps come standard with shaft packing and feature 180-deg inline ports, a distinction from the 90-deg ports of its NP4F predecessor.

Like the NP4F, the NPH4F’s design is said to minimize shear and agitation. It features ductile iron construction with an internal relief valve that protects against excessive pressures. Additional features and benefits include an optional cartridge mechanical seal, lip seal or triple-lip cartridge seal over the standard shaft packing; 4-inch weld, 4-inch ANSI 150# RF compatible or 4-inch NPT flanges. Blacker has jacketed head options.

The NPH4F pump is available with differential pressures up to 200 psi (13.8 bar) and maximum pump speeds of 500 rpm. The vanes can be replaced without removing the pump from the piping system.

The model is part of Blackmer’s NP line, which is described as ideal for applications that have varying fluid viscosities and temperatures. Typical applications include refined fuels, greases, solvents, chocolate, syrups, molasses, edible oils, black liquor, sodium silicate, tallow, wax, glues, adhesives, creosote, asphalt and aqueous film forming foam (AFFF).

Blackmer, at, is a division of Dover Corp.’s Pump Solutions Group, at Blackmer pumps and compressors are used in the process, energy and military and marine markets.

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