VOLUMETRIC EXPANSION TESTING MACHINE

 NGV-CYL-JA16 

ISO 11439 STATEMENT

Any internal pressure applied after autofrettage and prior to the hydrostatic test shall not exceed 90 % of the

hydrostatic test pressure.

One of the following two options shall be used:

Option 1. Volumetric expansion test

a) The cylinder shall be hydrostatically tested to at least 1,5 times working pressure. In no case shall the test

pressure exceed the autofrettage pressure.

b) Pressure shall be maintained for 30 s and sufficiently longer to ensure complete expansion. Any internal

pressure applied after autofrettage and prior to the hydrostatic test shall not exceed 90 % of the hydrostatic

test pressure. If the test pressure cannot be maintained due to failure of the test apparatus, it is permissible to

repeat the test at a pressure increased by 7 bar. No more than 2 such repeat tests are permitted.

c) Any cylinders not meeting the defined rejection limit shall be rejected and rendered unserviceable.

Option 2. Proof pressure test

The hydrostatic pressure in the cylinder shall be increased gradually and regularly until the test pressure, at least 1,5 times working pressure, is reached. The cylinder test pressure shall be maintained for at least 30 s to establish that there are no leaks.

DESCRIPTION OF MACHINE

Automated Hydrostatic Water Jacket Cylinder Test System. Meets/exceeds U.S. DOT requirements for readability and accuracy

Test range of 2500 - 9000 psi in automated mode
Test range of 2500 - 10,000 psi in manual mode
Software operates test functions and records test results.

Sleek - low profile modern cabinet design

FEATURES

-          User friendly software program reduces human error

-          Software calculates all expansion values and pass/fail criteria based on expansion values

-          Operator types in cylinder info and test criteria - clicks test button - test is then run and recorded

-          Daily verification automated calibrated cylinder run

-          User defined templates are easily added and controlled

-          Allows loading of cylinder information in batches or singularly

-          System can be operated in manual mode for ease of troubleshooting

      

SPECIFICATION:

• Air operated test pump
• Stainless steel water section
• Soft seated check valves
• Contaminant free design - for O₂ cylinder testing
• Steel water jacket (test chamber), with 18" diameter x 72" tall
• Accepts cylinders to 16" diameter x 66" tall
• Low pressure safety relief port
• High and low pressure air bleed valves
• Pneumatic operated lid closure
• Floor mounted - no need for pit
• Master pressure gauge

Used for periodic recalibration of electronic sensors

Class 3A - 1/4% accuracy

8.5" diameter, 11,000psi x 20psi increments

• Calibration cylinder

ü  For full test range

ü  Test adapter and expansion chart included

• Digital expansion readout scale

350g Net expansion value x 0.1g increments

Calibration weights included

• Hardware:

CPU

Flat screen display<

Mouse-keyboard-ink jet printer

Set of test adapters
Safety relief
Written instructional manual

ADDITIONAL SERVICES

-          8CFM @ 100psi of pre-regulated shop air 

-          Inlet water supply 

-          Consistent and stable air temperature

-          Overhead I-beam with hoist and trolley

-          12' Ceiling height

220V - 1phase - 60Hz electrical 

Please consult with our local agent to determine your requirement.