Corken | IDEX Corporation | Autogas Pumps

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Autogas Pumps—Troubleshooting Guide

Pump Runs But No Flow

Possible Causes

What To Do

Valve closed in inlet or discharge line

Open the valve.

Excess flow valve slugged or closed

Stop pump until valve opens. If problem continues, install new or larger capacity excess flow valve.

Vapor lock

Regenerative turbine pumps "vapor-lock" when reaching their maximum differential pressure capability. See Differential pressure too high. Piping installed improperly. See Installation Guide.

Wrong rotation

Check the rotation of the electric motor, and change the rotation.

Suction pipe too small or restricted

Indicated by pump inlet pressure dropping several pounds when pump is started. Remove restriction and/or increase pipe size.

Corken, Inc.
A Unit of IDEX Corporation
3805 N.W. 36th St., Oklahoma City, OK 73112 U.S.A.
(405) 946-5576 FAX (405) 948-7343