Sealless, Magnetically Driven Rotary Pumps for Nomenclature, Definitions, Application, Operation, and Test (ANSI/HI 4.1-4.6)

Sealless, Magnetically Driven Rotary Pumps for Nomenclature, Definitions, Application, Operation, and Test (ANSI/HI 4.1-4.6)

This standard covers the unique features of sealless, magnetically driven rotary pumps and includes sections on types and nomenclature; definitions; design and applications; installation, operation, and maintenance; and test. Because of the variety of rotary pump configurations available and the broad range of applications, familiarization with Hydraulic Institute Standards ANSI/HI 3.1–3.5 Rotary Pumps for Nomenclature, Definitions, Application and Operation and ANSI/HI 3.6 Rotary Pump Tests is recommended. This standard does not apply to the flexible member/ peristaltic rotary pump type.

Sealless rotary pumps combine the advantages of a positive displacement pump that is capable of pumping viscous liquids and liquids sensitive to shear with the ability to contain toxic, dangerous, or valuable liquids or when specific applications or flow/pressure requirements warrant their use.  These applications may be dictated by environmental, safety, noise, or space concerns.  This standard will help both users and manufacturers properly apply sealless rotary pumps to those services in which leakage to the environment is a concern.  In addition, the procedures for hermetic integrity testing have been included.