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HYDROSTATIC TESTING MACHINES

Our hydrostatic testing machines (hydrotesters) are designed to safely test PVC water main pipe lengths in accordance with the requirements of the American Water Works Association, Specification C-900. Both our submersible and non-submersible style hydrotesters are extremely effective and can be customized to meet your required specifications.

 

PEM’s submersible hydrotesters feature fully-automated loading,
testing, and unloading stations. A double indexing mechanism allows a single length of pipe to be lowered by the pivot arms into a water bath for rapid filling. The pipe is fully submerged to ensure that no air will be trapped in the pipe and pipe cradles provide close control over the centerline location in the water bath. The ends of the pipe are capped and seal on the ID of the bell and the OD of the spigot end of the pipe. Pressure is rapidly brought to the required level and maintained for a minimum of five seconds. Cycle times range from three minutes for up to 12-inch diameter pipe and six minutes for sizes up to 24 inches. Upon successful completion of the test, pressure is relieved, and the pipe is raised, drained, and transferred to the holding station. The next length of pipe is automatically indexed from the holding station and the testing process repeats.

TESTING TECHNOLOGY AND DATA

The basic hydrotester features a 1,000 psi pressure gauge and
combination digital readout meter with paperless test data storage. The test instrumentation provides a variable, test-pressure readout for specified ranges and automatically senses whether the test was passed or failed. When a test is failed, an output signal will stop the cycle at the failure point and give an audible and/or visual alarm. Other operational procedures can be added along with optional data storage and retrieval options.

SOLID STEEL CONSTRUCTION

PEM’s submersible hydrotesters feature a stainless steel tank with
filling and drain valves contained in a heavy-duty welded steel
framework that is protected with an epoxy paint finish. Transport
systems for large in-line hydrotesters are available and can be
customized for individual customer needs.

OPTIONAL FEATURES
  • Tooling, per size

  • Alternative recording instrumentation

  • Adapters for pipe shorter than 20 feet

  • Microprocessor controls

  • Isolation transformer / signal conditioner

  • Lift and rotator unit for turning pipe before stacking or bundling

  • Incoming transfer cart

  • In-line testing

 

These machines feature fully automated loading, testing, and unloading stations. The pipe is lifted from the waiting station to the test station and positioned to the centerline of the test caps which move into position by means of hydraulic cylinders, and mechanically lock into position. The pipe is then filled with water by means of a low pressure/high volume centrifugal water pump. Test pressure is achieved once the pipe is full of water and the air is vented by means of a triplex piston pump. A large scale 1,000 PSI pressure gauge can be set to indicate the proper test pressure which will be maintained for a minimum of
five seconds.


Once the test is successfully completed, water evacuates from the pipe, and the pipe automatically transfers to the unloading station. Another length of pipe is then automatically conveyed from the waiting stationand the testing sequence repeats.

OPTIONAL FEATURES
  • Tooling, per size

  • Alternative recording instrumentation

  • Adapters for pipe shorter than 20 feet

  • Microprocessor controls

  • Isolation transformer / signal conditioner

  • Lift and rotator unit for turning pipe before stacking or bundling

  • Incoming transfer cart

  • In-line testing

Pipe Beller
Engineer

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PO Box 1285
900 Kit Blvd. 
McPherson, KS 67460

Sales and Service
Phone: 620.241.3873 

Fax: 620.241.7707

sales@pemusa.com

Copyright © 2020 Plastics Extrusion Machinery LLC. All rights reserved.