Contamination Control-FAQs-上海毅鸥流体控制技术有限公司（麦塔雷斯）

FAQs: HOME FAQs Contamination Control

There isn't a fast method for clearing a clogged HTP prior to cleaning with the system. Blow some air through to see if you have a passage. Once this has been established, send though a smaller than recommended projectile and upon its exit gradually increase the projectile size. If at the outset the contamination build-up is too great to obtain a passage through with air, a chemical may be introduced to soften the contamination. Once this has been established, continue in the normal way with the system.
Yes. Ultra Clean and abrasive projectiles will negotiate sweeping bends and the Ultra Clean projectiles will handle tight bends.
In past demonstrations, the projectile will travel thousands of feet depending on the ID of HTP and the pressure and volume of your gas source. As long as there is sufficient volume of air behind the projectile, it will keep traveling through the HTP.
Yes. This can be achieved using an Ultra Clean projectile, although, if the build-up has hardened; it will probably require an abrasive or grinding projectile.
Yes. Select the right nozzle to suit the coupling then select the correct Ultra Clean projectile and fire through the line.
2 to 3 seconds depending on the size. Larger capsules take slightly longer to shrink than smaller ones.
Depends on the size. Assemblies up to ½” ID can fit 3 to 4 lines at a time depending on fitting configuration.
Depending on the application - yes. It depends on the cleanliness standard of the industry in which you are operating. Reusing the projectiles in the medical, food and beverage or hydraulic applications would not be recommended. In areas such as large condensers with many tubes, washing and reusing the projectiles may reduce costs.
Yes, normal operating pressure is 80 psi to 140 psi and it is recommended that 140 psi not be exceeded. A higher pressure can assist in problem contamination.
Yes. There are some important rules when dealing with a tee section. The projectile must be fired into the cross section while at the same time blocking one end of the cross section. Next either reverse the blocked end on the cross section or open both ends of the cross section and block the tube going into the cross section.
This will depend on the chemicals in question. The best method is to soak a projectile in the chemical and see the result prior to using on an application.
Check that the faceplate is secured properly and safety bar/release mechanism is locked in position. Check for restrictions in the air hose and the gas is turned on.
The Clean Seal Capsule size is directly related to the hex OD by measuring from point-to-point (not the flats!) on the hex fitting. There is a sizing chart on the Ultra Clean Website and in our Clean Seal System brochures and Product Manual. You may also call our customer service at 800-791-9111 to request copies.
No, not when following Ultra Clean’s capsules-shrinking procedures. The capsules and O-ring style fitting should not be in the Clean Seal System (heat shrink machine or gun) more than 5 seconds maximum when heating unit is at optimum temperature. Fittings and capsules are generally cool to the touch immediately after the capsule is sealed onto the fitting.
It is much easier to shrink a capsule onto a fitting with the diffuser. It provides a gentle 360° airflow for even shrinking around the capsule. The force of air coming out of a normal heat gun may blow the capsule off the fitting.
If gas pressure is too low, the correct sized projectile will possibly become lodged in the HTP. As smaller projectile will need to be used resulting in greater use of projectiles than is necessary.
The distance the projectile will travel is reduced and the time taken for the projectile to clean will be increased. Any restrictions in the HTP will probably cause the projectile to jam when normally it would overcome these easily. Overall, it reduces the effectiveness of the system.

If the gas pressure is too high, the valve and trigger in the launcher may not operate properly, e.g., difficult to depress trigger and release gas, or the trigger does not close and therefore gas is difficult to turn off.
Yes, providing no breakdown occurs, it can assist the projectiles task, e.g., in paint lines, the projectiles must be soaked in thinners prior to cleaning lines.
No, the tube must have a consistent ID throughout. The projectile will simply jam onto the fin.
When copper tube is cut, the end is often burred or the opening is compressed from the cutting process. It is important the tube or pipe is square cut and deburred accordingly.
Try using a hose nozzle and insert it into the tube or pipe rather than over it and use the appropriate projectile for the application.
If the HTP does not accommodate a standard nozzle, try the next sized smaller nozzle. Insert the recommended projectile to suit the HTP, but before firing into the HTP, fire it through the nozzle only to ensure it comes out of the nozzle. (Make sure the pneumatic launcher is pointed in a safe direction).
If the pipe or tube has an uneven cut, and this can't be rectified by re-cutting, or there is weld splatter, wrap a piece of rubber sheet or cloth around the nozzle and seal the pipe or tube.