Introduction Before You Measure Hose and Stem Assemblies, Review This Information 1. Determine what type of hose assembly is to be replaced. 2. Measure the inside diameter of the hose. 3. Measure the angle, actual head size, and length of the stem assemblies. 4. Select the proper stem assembly from the part numbers pages. a. Locate inside diameters for your hose. b. Check the list of actual head sizes and lengths of stem assemblies. c. Locate the desired angle for your stem assembly. d. When all the dimensions agree, locate the part number. 5. Add the cut-off factors for your stem assemblies. 6. Subtract this total length from the overall length of the hose assembly. 7.
Cut bulk hose to length needed for hose assembly. 8. Assemble the new hose assembly using sleeves, stems, and armor if needed. Coupling Dimensions A. Actual Head Size B. Stem Assembly Length C. Cut-Off Factor D. Drop Length E. Degree of Angle F. Hose Inside Diameter Hose Assembly Measurements Flange-type Assembly– Subtract the cut-off factors from the overall assembly length to determine the length of bulk hose required. Thread-type Assembly –Subtract the cut-off factors and the assembled length of the adapter from the overall assembly length to determine the bulk hose required. Assemblies are measured to the centerline of the sealing surface.
Coupling Angle of Orientation The angle of orientation between the stem assemblies is measured with the far stem assembly vertically downward and viewing the assembly from the near stem assembly end. 4