Medical Compressed Gas Connectors Introduction to FasTest Why Choose FasTest? ... FasTest is a dedicated manufacturer of advanced connection tools for pressure, vacuum testing and filling applications. Our connection tools are easy, safe, and reliable and can dramatically lower your operating costs and increase operational throughput.
Medical Compressed Gas Connectors application guidelines zz zz zz zz Connectors for respiratory air/oxygen must be kept free from oil and grease. Use Krytox or approved equivalent lubricant as required. Do not connect to a damaged cylinder valve. Contact FasTest if the product is damaged, or if you have inquiries on the proper function of the connector. Do not use the connector until clarification is sought. zz Connectors may only be dismantled by FasTest or trained personnel.
Medical Compressed Gas Connectors INSTALLATION Step 1 Protect the connector from damage and dirt by keeping it in the original packaging until you are ready to use it. Step 2 Check that the connector part number and delivery notes (if applicable) comply with the application. Step 3 Connect the hose securely and leak-tight to inlet or outlet. Tighten to a max torque of 15 ft-lbs. A higher torque can result in damage causing leaks when the system is pressurized.
Medical Compressed Gas Connectors MediMate cga 870 and CGA 950 OPERATION Step 1 At the start of each shift: • Check all connectors for main seal condition. • Check for smooth operation of the handle before the first fill. • Check seal-face/piston movement. Body Handle Incoming Line Termination Sealing Piston Main Index Seal Pins Figure 4.
Medical Compressed Gas Connectors MediMate cga 870 and CGA 950 OPERATION Step 3 Connecting to the cylinder: • A three step process locks the valve into place. Figure 7. Valve properly aligned. Figure 8. Connector in transition. Figure 9. Fully connected. 4 FasTest, Inc. 1646 Terrace Drive Roseville, MN 55113 Support: (800) 444-2373 Fax: (651) 645-7390 www.fastestinc.
Medical Compressed Gas Connectors MediMate cga 870 and CGA 950 OPERATION Incorrect Connections Correct Connections Not Over Center Over Center Figure 12. H andle is not camed beyond center. Note angle of handle. Figure 10. H andled camed beyond center. Note angle of handle. Minimal Gap Figure 11. V alve is tight to the body. Step 4 Disconnect • Once pressure is relieved, move handle and release connector. FasTest, Inc.
Medical Compressed Gas Connectors Medical and Industrial cga 540 operation Step 1 At the start of each shift: • Check all connectors for main seal condition. • Check for smooth operation of the sleeve and collets before the first fill. 1/4” NPT Male Incoming Line Termination 1/4” NPT Female Incoming Line Termination Main Seal Main Seal Sleeve Sleeve Collet Collet G540-041-SH G540-042-SH Figure 13. Medical and Industrial CGA 540.
Medical Compressed Gas Connectors Medical and Industrial cga 540 operation Step 2 Connecting to the cylinder: • A three step process locks the valve into place. Figure 14. Valve properly aligned with connector. Figure 15. Connector in transition. Figure 16. Fully connected. FasTest, Inc. 1646 Terrace Drive Roseville, MN 55113 Support: (800) 444-2373 Fax: (651) 645-7390 www.fastestinc.
Medical Compressed Gas Connectors Medical and Industrial cga 540 operation Correct Connections Incorrect Connections Figure 17. Connector tight to valve. Figure 19. N ote excess threads. Figure 18. Sleeve is forward. Figure 20. Connector loose and sleeve not forward. Step 3 Disconnect • Once pressure is relieved, pull back on sleeve and remove connector. 8 FasTest, Inc. 1646 Terrace Drive Roseville, MN 55113 Support: (800) 444-2373 Fax: (651) 645-7390 www.fastestinc.
Medical Compressed Gas Connectors Maintenance Good Maintenance Practices • FasTest’s MediMate CGA 870, CGA 950, Medical and Industrial CGA 540 series connectors may require periodic lubrication. Use Krytox or approved equivalent ONLY! • Maintain accurate and complete product maintenance records. • In addition to these suggested maintenance guidelines, your companies overall safety and maintenance requirements should be applied to FasTest gas connector products.
Medical Compressed Gas Connectors Maintenance Main Seal The main O-ring seal should be replaced at least every 1000 cycles. FasTest recommends a daily visual inspection of the sealing O-ring, located at the tip of the filling nozzle. Inspect for tears or cracks in the O-ring surface. Replace O-ring if tears or cracks are visible or verified. Some applications require more frequent seal changes. Figure 21. An example of a “good O-ring” main seal. Figure 22. An example of a “bad O-ring” main seal.
Medical Compressed Gas Connectors Maintenance MediMate CGA 870 and CGA 950 The connector must remain clean to allow for proper operation. Piston Figure 25. P ress on the piston. If it does not spring back, the internal components may be clogged with soap residue. Approximately 33lbs will be required to depress the piston. Clevis Pin Cartridge Assembly Retaining Ring Figure 26. R emove cartridge assembly and clean residue with water and agitation. Figure 28.
Medical Compressed Gas Connectors Maintenance Medical and Industrial CGA 540 Figure 29. Check retaining ring to make sure it is tightly seated in its groove. Retaining Ring zz zz Check internal thread collets for a fixed-center position and even spacing. An “out-of-round” condition may hinder sleeve operation. A visual inspection of the sleeve is usually sufficient. Maintenance Checklist Daily Inspect for Leak-tight seal • The main seal must be replaced more frequently depending on wear.
Medical Compressed Gas Connectors Standard field replacement parts Gas connector standard replacement parts listed in this section are available for field replacement. FasTest does not offer any further replacement components as special tools and handling precautions may be required. Due to the high pressure of compressed gas filling, as well as the Oxygen cleaning requirements of specific CGA standards, FasTest requires you to return gas connector products for maintenance and repair.
Medical Compressed Gas Connectors Troubleshooting MediMate CGA 870 and CGA 950 Problem Recognized By Probable Cause Recommended Action Gas leakage at connection of connector to valve. Continual sound of escaping gas. (a) Damaged or worn connector sealing O-ring or damaged cylinder valve. (a) Visual inspection of connector O-ring. Replace as required. Recommended O-ring replacement every 1000 filling cycles. (b) Clean. (b) Contaminated or clogged pressure piston. Index pins removed.
Medical Compressed Gas Connectors Troubleshooting Medical and Industrial CGA 540 Problem Recognized By Probable Cause Recommended Action Short connection of connector to valve. Visual inspection of connection joint. Connector thread collets not expanding properly during initial hook-up to cylinder valve. a) Visual inspection of valve. Replace if damaged or worn. b) Disconnect and reconnect connector to valve. Be sure sleeve is fully engaged. If problem is unresolved, contact FasTest.
Medical Compressed Gas Connectors nOTES 16 FasTest, Inc. 1646 Terrace Drive Roseville, MN 55113 Support: (800) 444-2373 Fax: (651) 645-7390 www.fastestinc.
Medical Compressed Gas Connectors notes FasTest, Inc. 1646 Terrace Drive Roseville, MN 55113 Support: (800) 444-2373 Fax: (651) 645-7390 www.fastestinc.
Connector Refurbishment Program Extend the service life and warranty of your investment - Our connector refurbishment and competitor replacement program delivers the latest product improvements and ensures proper connector operation and performance in your application. Connectors routinely maintained can be refurbished or replaced economically relative to the cost of a new connector replacement. Visit www.fastestinc.com or contact FasTest for details. Warranty FasTest, Inc.