|
2
<br />0 0
<br />Air Pressure Testing Procedures
<br />The air pressure integrity test procedure for the flexible supply piping is one
<br />and one hall (1-1/2) times the normal operating pressure of the submersible
<br />pump, not to exceed sixty pounds per square inch (60 psi). Make sure the
<br />flexible pipeline is isolated from both the underground storage tank and the
<br />above ground product dispenser when conducting this test. All pressure
<br />testing should be conducted by qualified and experienced personnel. Do not
<br />attempt to disconnect couplings, caps, or plugs unless the air pressure has
<br />been released.
<br />• Gradually apply air pressure Into the flexible piping line, Do not exceed
<br />sixty pounds per square Inch (60 psi).
<br />• Maintain pressure for a minimum of three hours making sure that there is
<br />no drop in pressure. Note: Significant temperature changes can result in
<br />a pressure reading differential.
<br />• During pressurizing, check the reading on the Test Gauge which should
<br />be connected to the Test Tube of the interconnected interstiliai line. Any
<br />increase in pressure will indicate a leak in the primary supply line.
<br />• During the pressurizing period, apply a soapy water solution to all piping
<br />connections and inspect for bubbles.
<br />Supply System Filling
<br />Aller the supply piping system has been integrity tested and connected to the
<br />product dispensers, filling of the pipe line may commence. There should be a
<br />controlled method for filling the supply line which provides an adequate
<br />means of removing air from the lines. Do not start pumps with empty lines,
<br />Test Requirements
<br />Local or federal regulations may require periodic line leak detection tests be
<br />performed on the installed piping system. Testing requirements affect both
<br />suction and pressure piping systems. A typical requirement is that the piping
<br />line must be tested on an annual basis at one and one half (1-1/2) times the
<br />normal operating pressure. The typical test method will require detection of
<br />0.10 gallons (.3785 liters) per hour with a 95% probability of detection and a
<br />5% probability of a false alarm.
<br />The typical lest procedure requires the piping be isolated from the tank and
<br />the piping line pressurized to 1-1/2 limes the normal operating pressure. A
<br />test apparatus which is connected to the piping line will then measure the
<br />bleedback volume of the piping system. Acceptable bleedback volumes on
<br />different types of piping systems will vary due to their inherent expansion and
<br />contraction characteristics. Therefore modifications in the testing procedures
<br />are required for piping systems which have significant expansion and
<br />contraction characteristics. This characteristic is measured In the average
<br />volume increase, per lineal foot under a standard test pressure.
<br />Hydrostatic Testing Procedures
<br />The recommended hydrostatic pressure integrity test procedure for the
<br />flexible supply piping is one and one half (1-1/2) times the normal operating
<br />pressure of the submersible pump, not to exceed sixty pounds per square
<br />Inch (60 psi). Make sure the flexible pipeline is isolated from the underground
<br />storage tank and the above ground product dispenser when conducting this
<br />test. All pressure testing should be conducted by qualified and experienced
<br />personnel. Do not attempt to disconnect couplings, caps, or plugs unless the
<br />air pressure has been released.
<br />• Gradually introduce water at the lowest point into the piping system and
<br />bleeding off air at the highest point In the piping system though an open
<br />valve. The hydrostatic pressure applied should not exceed 60 psi.
<br />• Maintain pressurization for a minimum of one hour making sure there is
<br />no drop in pressure. Note: Significant temperature changes can result in
<br />a pressure reading differential.
<br />• During the pressurizing period inspect all piping connections for leaks.
<br />M
<br />aR.n»..,..m,m..��..q., .s-.........�..n,„, v.. --r -.:rx�.rp;:?+mx.•......
<br />BE CAREFUL WHEN DOING PRESSURE TESTING!
<br />as it may damage the pipe and its connections. Small amounts of trapped air
<br />should dissipate under normal operations. Make sure (hat the surge or
<br />pulsation pressure rating of the submersible pump does not exceed that of
<br />the maximum operating pressure of the pipe, which is 75 psi.
<br />GeoFlex Piping Expansion Characteristics
<br />GeoFlex Piping is a liber reinforced smooth bore flexible pipe which
<br />demonstrates only minor expansion and contraction characteristics during
<br />pressurization and depressurization, similar to that of fiberglass piping.
<br />These physical characteristics reduce the affect on the 'bleedback
<br />tolerances" permitting a more accurate testing procedure.
<br />Piping Expansion Characteristics
<br />Pipe Description 'Volume Increase
<br />1-1/2" GeoFlex Flexible Piping +0.0016
<br />2" Fiberglass Piping +0.00045
<br />1-1/2" Flexible Connectors +0.0060
<br />'Volume increase = gallons per lineal foot at 60 psi pressure
<br />Testing Equipment
<br />Pipe System Testing
<br />• Pressurizing equipment should be of sufficient size to accommodate line pressure testing requirements.
<br />The following test procedures are
<br />provided as a guidelineonly end the
<br />• Pressurizing equipment should have controls to gradually increase pressures.
<br />manufacturer
<br />r assassumes no
<br />. Pressurizing equipment should be operated by experienced and qualified personnel only.
<br />responsibility or liability for the
<br />• The pressure gauge should be located in close proximity to the pressurizing equipment.
<br />consequences of any testing practices.
<br />• Pressure gauges must have a full scale reading not to exceed twice the required test pressure.
<br />Air Pressure Testing Procedures
<br />The air pressure integrity test procedure for the flexible supply piping is one
<br />and one hall (1-1/2) times the normal operating pressure of the submersible
<br />pump, not to exceed sixty pounds per square inch (60 psi). Make sure the
<br />flexible pipeline is isolated from both the underground storage tank and the
<br />above ground product dispenser when conducting this test. All pressure
<br />testing should be conducted by qualified and experienced personnel. Do not
<br />attempt to disconnect couplings, caps, or plugs unless the air pressure has
<br />been released.
<br />• Gradually apply air pressure Into the flexible piping line, Do not exceed
<br />sixty pounds per square Inch (60 psi).
<br />• Maintain pressure for a minimum of three hours making sure that there is
<br />no drop in pressure. Note: Significant temperature changes can result in
<br />a pressure reading differential.
<br />• During pressurizing, check the reading on the Test Gauge which should
<br />be connected to the Test Tube of the interconnected interstiliai line. Any
<br />increase in pressure will indicate a leak in the primary supply line.
<br />• During the pressurizing period, apply a soapy water solution to all piping
<br />connections and inspect for bubbles.
<br />Supply System Filling
<br />Aller the supply piping system has been integrity tested and connected to the
<br />product dispensers, filling of the pipe line may commence. There should be a
<br />controlled method for filling the supply line which provides an adequate
<br />means of removing air from the lines. Do not start pumps with empty lines,
<br />Test Requirements
<br />Local or federal regulations may require periodic line leak detection tests be
<br />performed on the installed piping system. Testing requirements affect both
<br />suction and pressure piping systems. A typical requirement is that the piping
<br />line must be tested on an annual basis at one and one half (1-1/2) times the
<br />normal operating pressure. The typical test method will require detection of
<br />0.10 gallons (.3785 liters) per hour with a 95% probability of detection and a
<br />5% probability of a false alarm.
<br />The typical lest procedure requires the piping be isolated from the tank and
<br />the piping line pressurized to 1-1/2 limes the normal operating pressure. A
<br />test apparatus which is connected to the piping line will then measure the
<br />bleedback volume of the piping system. Acceptable bleedback volumes on
<br />different types of piping systems will vary due to their inherent expansion and
<br />contraction characteristics. Therefore modifications in the testing procedures
<br />are required for piping systems which have significant expansion and
<br />contraction characteristics. This characteristic is measured In the average
<br />volume increase, per lineal foot under a standard test pressure.
<br />Hydrostatic Testing Procedures
<br />The recommended hydrostatic pressure integrity test procedure for the
<br />flexible supply piping is one and one half (1-1/2) times the normal operating
<br />pressure of the submersible pump, not to exceed sixty pounds per square
<br />Inch (60 psi). Make sure the flexible pipeline is isolated from the underground
<br />storage tank and the above ground product dispenser when conducting this
<br />test. All pressure testing should be conducted by qualified and experienced
<br />personnel. Do not attempt to disconnect couplings, caps, or plugs unless the
<br />air pressure has been released.
<br />• Gradually introduce water at the lowest point into the piping system and
<br />bleeding off air at the highest point In the piping system though an open
<br />valve. The hydrostatic pressure applied should not exceed 60 psi.
<br />• Maintain pressurization for a minimum of one hour making sure there is
<br />no drop in pressure. Note: Significant temperature changes can result in
<br />a pressure reading differential.
<br />• During the pressurizing period inspect all piping connections for leaks.
<br />M
<br />aR.n»..,..m,m..��..q., .s-.........�..n,„, v.. --r -.:rx�.rp;:?+mx.•......
<br />BE CAREFUL WHEN DOING PRESSURE TESTING!
<br />as it may damage the pipe and its connections. Small amounts of trapped air
<br />should dissipate under normal operations. Make sure (hat the surge or
<br />pulsation pressure rating of the submersible pump does not exceed that of
<br />the maximum operating pressure of the pipe, which is 75 psi.
<br />GeoFlex Piping Expansion Characteristics
<br />GeoFlex Piping is a liber reinforced smooth bore flexible pipe which
<br />demonstrates only minor expansion and contraction characteristics during
<br />pressurization and depressurization, similar to that of fiberglass piping.
<br />These physical characteristics reduce the affect on the 'bleedback
<br />tolerances" permitting a more accurate testing procedure.
<br />Piping Expansion Characteristics
<br />Pipe Description 'Volume Increase
<br />1-1/2" GeoFlex Flexible Piping +0.0016
<br />2" Fiberglass Piping +0.00045
<br />1-1/2" Flexible Connectors +0.0060
<br />'Volume increase = gallons per lineal foot at 60 psi pressure
<br />Pre -Testing Procedures
<br />Warning
<br />• The underground storage tank should be isolated from the piping system prior to hydrostatic testing.
<br />Integrity testing with air or gas can be
<br />• Shear valves or riser pipes located under dispensers should be sealed with pressure rated plugs or caps.
<br />dangerous and it is very Important that
<br />the proper testing equipment be used
<br />• Long flex piping runs should be secured at various points with backfill material.
<br />and that the pre -testing procedures be
<br />• All pipe coupling/swivel connections should be tightened securely before testing.
<br />read.
<br />• The interstitial (secondary) line should be Interconnected and fitted with an air gauge.
<br />• All local building, safely and fire codes should be followed prior to testing.
<br />Air Pressure Testing Procedures
<br />The air pressure integrity test procedure for the flexible supply piping is one
<br />and one hall (1-1/2) times the normal operating pressure of the submersible
<br />pump, not to exceed sixty pounds per square inch (60 psi). Make sure the
<br />flexible pipeline is isolated from both the underground storage tank and the
<br />above ground product dispenser when conducting this test. All pressure
<br />testing should be conducted by qualified and experienced personnel. Do not
<br />attempt to disconnect couplings, caps, or plugs unless the air pressure has
<br />been released.
<br />• Gradually apply air pressure Into the flexible piping line, Do not exceed
<br />sixty pounds per square Inch (60 psi).
<br />• Maintain pressure for a minimum of three hours making sure that there is
<br />no drop in pressure. Note: Significant temperature changes can result in
<br />a pressure reading differential.
<br />• During pressurizing, check the reading on the Test Gauge which should
<br />be connected to the Test Tube of the interconnected interstiliai line. Any
<br />increase in pressure will indicate a leak in the primary supply line.
<br />• During the pressurizing period, apply a soapy water solution to all piping
<br />connections and inspect for bubbles.
<br />Supply System Filling
<br />Aller the supply piping system has been integrity tested and connected to the
<br />product dispensers, filling of the pipe line may commence. There should be a
<br />controlled method for filling the supply line which provides an adequate
<br />means of removing air from the lines. Do not start pumps with empty lines,
<br />Test Requirements
<br />Local or federal regulations may require periodic line leak detection tests be
<br />performed on the installed piping system. Testing requirements affect both
<br />suction and pressure piping systems. A typical requirement is that the piping
<br />line must be tested on an annual basis at one and one half (1-1/2) times the
<br />normal operating pressure. The typical test method will require detection of
<br />0.10 gallons (.3785 liters) per hour with a 95% probability of detection and a
<br />5% probability of a false alarm.
<br />The typical lest procedure requires the piping be isolated from the tank and
<br />the piping line pressurized to 1-1/2 limes the normal operating pressure. A
<br />test apparatus which is connected to the piping line will then measure the
<br />bleedback volume of the piping system. Acceptable bleedback volumes on
<br />different types of piping systems will vary due to their inherent expansion and
<br />contraction characteristics. Therefore modifications in the testing procedures
<br />are required for piping systems which have significant expansion and
<br />contraction characteristics. This characteristic is measured In the average
<br />volume increase, per lineal foot under a standard test pressure.
<br />Hydrostatic Testing Procedures
<br />The recommended hydrostatic pressure integrity test procedure for the
<br />flexible supply piping is one and one half (1-1/2) times the normal operating
<br />pressure of the submersible pump, not to exceed sixty pounds per square
<br />Inch (60 psi). Make sure the flexible pipeline is isolated from the underground
<br />storage tank and the above ground product dispenser when conducting this
<br />test. All pressure testing should be conducted by qualified and experienced
<br />personnel. Do not attempt to disconnect couplings, caps, or plugs unless the
<br />air pressure has been released.
<br />• Gradually introduce water at the lowest point into the piping system and
<br />bleeding off air at the highest point In the piping system though an open
<br />valve. The hydrostatic pressure applied should not exceed 60 psi.
<br />• Maintain pressurization for a minimum of one hour making sure there is
<br />no drop in pressure. Note: Significant temperature changes can result in
<br />a pressure reading differential.
<br />• During the pressurizing period inspect all piping connections for leaks.
<br />M
<br />aR.n»..,..m,m..��..q., .s-.........�..n,„, v.. --r -.:rx�.rp;:?+mx.•......
<br />BE CAREFUL WHEN DOING PRESSURE TESTING!
<br />as it may damage the pipe and its connections. Small amounts of trapped air
<br />should dissipate under normal operations. Make sure (hat the surge or
<br />pulsation pressure rating of the submersible pump does not exceed that of
<br />the maximum operating pressure of the pipe, which is 75 psi.
<br />GeoFlex Piping Expansion Characteristics
<br />GeoFlex Piping is a liber reinforced smooth bore flexible pipe which
<br />demonstrates only minor expansion and contraction characteristics during
<br />pressurization and depressurization, similar to that of fiberglass piping.
<br />These physical characteristics reduce the affect on the 'bleedback
<br />tolerances" permitting a more accurate testing procedure.
<br />Piping Expansion Characteristics
<br />Pipe Description 'Volume Increase
<br />1-1/2" GeoFlex Flexible Piping +0.0016
<br />2" Fiberglass Piping +0.00045
<br />1-1/2" Flexible Connectors +0.0060
<br />'Volume increase = gallons per lineal foot at 60 psi pressure
<br />
|