Diesel engine driven pump set UNISTREAM packaged pump set with water cooled diesel engine. FM/UL APPROVED AND LISTED FIRE PUMPS Although equipment may be designed to meet NFPA 20, many insurance companies, consultants and clients insist that fire pumps and controllers are also Approved and Listed by Factory Mutual (FM) or Underwriters Laboratories (UL)...

PZ-Series Coro-Vane® The PZ-Series Coro-Vane® Petroleum pumps are a positive displacement vane design. They produce a maximum differential pressure of 125 psig (8.6 bar) and a maximum working pressure of 200 psi (13.8 bar). Corken manufactures two sizes of PZ-Series Coro-VaneÒ pumps with a capacity up to 160 gpm (605 L/min). Applications Typical applications for the PZ-Series Coro-Vane® pumps...

The single stage, reciprocating compressors create a low-pressure area in the pumping chamber when the piston moves from the highest point of the stroke to the lowest point.

Gaseous product (at a higher pressure in the tank) moves into the pumping chamber.