Chlorine Processing Transfer Hoses - Monel - Hastelloy - Chlorine Institute Pamphlet 6 Compliant

• Maximum Allowable Working Pressure (MAWP): Both Monel and Hastelloy chlorine transfer hoses exceed MAWP minimums of 500 PSIG for hoses ½” ID and smaller and 375 PSIG for hoses larger than ½” ID.
• Burst Pressure: Hoses comply with the Pamphlet’s 5:1 safety factor.
• Vacuum Rating: Corrugated metal hose is commonly used in both full and partial vacuum applications. Hoop strength prevents the corrugations from collapsing and the hose from deforming.
• Leak Testing: Metal hoses are tested to a maximum leak rate of 5 x 10-6 at two times MAWP using a Helium Mass Spectrometer, the most sensitive leak testing method. Given its porosity, PTFE cannot be tested using helium.
• End Fittings: Schedule 80 stub ends or nipples with hex wrench pads of at least 1” minimum or Type A carbon steel Lap Joint flanges with stub ends of the corresponding alloy are used. These configurations prevent damage to the assembly during installation.
• End Fitting Attachment Method: Welding is carried out by an ASME Sec. IX certified welder with a WPS in accordance with a PQR (Procedure Qualification Record).
• Cleaning: Hoses are cleaned to remove reactive materials and inspected for cleanliness and to ensure inside of the hose is completely dry.
• Marking: A metal tag with the type of information contained in the drawing below is welded to armor ferrule.
• Documentation: Positive Material Inspections (PMI) are carried out and reports supplied along with Material Test Reports (MTR) to ensure hose, braid and end fittings meet design specifications.