LPI offers a range of fully engineered Horizontal, API-610 jacketed process and jacketed slurry pumps to meet any requirements. The Lawrence Horizontal Jacketed pumps are unique in the way the jackets are designed to completely encompass the volute area of the casing, ensuring an even heating of the pumpage. Each pump size comes with a fabricated jacket arrangement allowing each pressurecasing to be fully inspected and hydrotested before the jackets are welded in place. The integral jacket design is more efficient as the heating medium comes into direct contact with the casing wall to promote heat transfer.

Jackets are designed to permit the use of heating mediums such as steam, Dowtherm, Therminol, or other heat transfer fluids. All casings jackets are hydrotested at 1½ times the maximum pressure of the heat transfer fluid. These jackets are designed to positively prevent leakage of the process stream into the jackets area. The passages through the jackets are not open into the casing joints. In accordance with API-610 requirements, O-ring closures between the jackets and the process liquid passages are not permitted.

Design Features

When steam is used as the heating medium the jackets are provided with either threaded or flange connections. For heat transfer fluids, where threading is unacceptable, the jackets are equipped with a minimum 150 lb raised face flange connection. All jackets are suitable for a minimum working pressure of 150 lbs. All jacketed spaces are designed to be self-draining.

As an option, Lawrence can provide inlet and outlet manifold piping so that the customer can connect to one common inlet and one common outlet connection.

Each pump is built with the Back Pull out Arrangement. The Back Pull out Arrangement simplifies internal inspection and maintenance by allowing removal of the entire rotating element and bearing frame without disturbing the suction and discharge piping or motor. The reduction of downtown and faster maintenance turn-around means significant cost savings.

The shaft is designed to meet a .002" deflection limitation at the face of the seal chamber under the maximum load conditions found at shut off. This stiff shaft design provides optimum seal life under adverse pumping conditions.

The baseplate is designed with pyramid style pedestals for centerline supporting of the pump casing. All baseplates have a sloping top plate terminating in a 1" NPT drain connection. The baseplate extends under the pump and drive train components, so that any leakage is contained within the baseplate. Mounting pads are provided for the pump and all drive train components. The pads are larger than the foot of the mounted equipment to allow leveling of the baseplate without removal of the equipment. The pads are fully machined, flat and parallel.