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Publications ANSI LC 6-2008

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ANSI LC 6-2008 - Natural gas operated diaphragm pumps

Publication Year:

  • 2008

Total Pages:



  • CSA


This publication represents a basic standard for safe operation, substantial and durable construction, and acceptable performance of natural gas operated diaphragm pumps. It is the result of years of experience in the manufacture, testing, installation, maintenance, inspection and research on natural gas operated diaphragm pumps designed for the utilization of gas. There are risks of injury to persons inherent in some appliances that, if completely eliminated, would defeat the utility of the appliance. The provisions in this Standard are intended to reduce such risks while retaining the normal function of the appliance.

1. Scope

1.1.1 This Standard applies to natural gas operated diaphragm pumps, herein after referred to as pumps, which are constructed entirely of new, unused parts and materials.

1.1.2 This Standard applies to pumps powered by pressurized natural gas, either wellhead or utility grade, pumping process fluids as specified by the manufacturer. (See Part IV, Definitions.)

1.1.3 This Standard applies to pumps with a maximum rated operating gas pressure not exceeding 150 psi (10.342 Bar).

1.1.4 Pumps complying with the provisions of this Standard shall be considered as having an operating ambient temperature range of 32F (0C) to 125F (51.5C), unless a lower minimum allowable ambient temperature, or a higher maximum allowable ambient temperature, or both, are specified by the manufacturer, (see 2.1.2).

1.1.5 If a value for measurement as given in this Standard is followed by an equivalent value in other units, the first stated value is to be regarded as the specification.

1.1.6 All references to "psi"("Bar") throughout this Standard are to be considered gauge pressure, unless otherwise specified.

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