The 2004 edition of the ANSI/HI standard on air-operated pumps has been updated by the Hydraulic Institute, Parsippany, N.J., and published as Air-Operated Pumps ANSI/HI 10.1-10.5-2010.
The updated standard is for air-operated pumps and includes positive-displacement reciprocating pumps used for general liquid transfer. These pumps usually are driven by means of a compressed gas such as air from an outside source.
The pump may be designed with a single diaphragm or double diaphragms connected to a reciprocating connecting rod. One side of the diaphragm is in contact with the liquid being pumped and the other side is in contact with the compressed gas.
The 24-page standard includes the four main sections:
- Types, configurations and nomenclature.
- Definitions.
- Design and application.
- Installation, operation and maintenance.
This standard applies to the test of air-operated pumps. It provides uniform procedures for mechanical and other pump performance testing and for recording of the test results of air-operated diaphragm and bellows pumps. All tests are also based on using water at ambient temperature.
The new version of the standard covers the following areas:
- Test to demonstrate mechanical integrity when pump is in
operation.
- Performance test.
- Noise measurement.
- Hydrostatic testing of pressure-retaining components.
- Net positive suction head (NPSH) test.
