VLT
Vertical Process Pump
2 V1.090418
FOREWORD
The VLT pump is a vertical process pump with one or more stages that are connected to a fabricated
nozzle head by one or more columns pipes. The entire pump and column assembly are suspended in
a suction receiving can. VLT pumps are of the “double casing type VS6” as defined by API 610. By
providing a multi-stage design, VLT pumps provide outstanding efficiencies and low cost operation in
high pressure applications. The special first stage allows operation with extremely low NPSH
requirements while running at optimal speeds. Exclusive hydraulic and mechanical features provide
continuing reliability with this optimum performance.
It is recommended that the services of a Ruhrpumpen installation technician be employed for the
installation and initial starting of the pump. Such service will help to ensure the user that the
equipment is properly installed, and will provide an excellent opportunity for the plant operator to
receive useful tips and guidelines relative to the unit. The tools and/or equipment referenced in this
manual are not supplied by Ruhrpumpen unless specifically ordered. This pump design can be
serviced with standard maintenance tools.
Instructions in this manual are written for trained, experienced technicians who are familiar with the
basic principles and tools involved in the installation, care and service of a pump and who, as part of
their trade education have acquired the ability to interpret and follow the detailed specifications
required for such installation, care, and service. Successful operation of the unit is dependent on
careful study of the manual and a well-planned maintenance program.
A complete reading of this manual by personnel in contact with the pump is essential to safety.
Incorrect installation, operation or maintenance can result in personal injury or death to personnel
and damage to the pump and plant.
IMPORTANT: For any component/accessory that has not been manufactured by Ruhrpumpen and is
part of the pump’s equipment, a complete reading of said component/accessory manufacturer’s
manual must be carried out for further information on proper maintenance procedures and relevant
safety warnings.
Correct and orderly installation/assembly is necessary for trouble-free operation of the unit.
Ruhrpumpen does not assume any liability for damage resulting from inadequate
installation/assembly. The chosen location for installation must offer enough space for maintenance
activities. Ruhrpumpen recommends consulting also API Recommended Practices 686 to ensure
proper installation in your facility.
Before performing any service function be certain that the unit has been separated from its power
source or that the power source is locked out to prevent any form of energy from entering the
equipment.
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