Installation Instructions Model 309 Fabricated Dismantling Joint
Read instructions before starting installation* For purposes other than water, contact JCM Industries for application and product assistance. Review of “Tricks of the Trade” on the reverse will assist with installation. Flange bolts and gaskets are not included. 1. Clean and scrape pipe. Remove any scale, pipe wrap, debris or dirt that may interfere with the complete sealing of the gasket. Inspect pipe for integrity, size, outside diameter and surface irregularities. Confirm the proper size and range of coupling. Measure gap or take-up area to determine the distance required and confirm 309 capabilities (2” standard adjustment). Inspect fitting to ensure all parts are included. Check mating flanges to ensure they match flange bolt-hole drilling pattern. Inspect the flanged ends for any gouges, grooves, irregularities or imperfections that will interfere with the flange connection. Fittings furnished with stainless steel hardware, see reverse forfastener management.
2. Lubricate the pipe and the fitting gasket with soapy water. Do not use oil base pipe lubricant.
3. Loosen coupling bolts of the follower flange to loosen the gasket seal and allow for easy movement of flanged spigot into flanged casing. Loosen restrainer rod back-up nuts to allow for closing of fitting.Remove outside nuts to install restrainer rods into pipe system flanges. Do not disassemble fitting.
4. Close the dismantling joint by pushing the flanged spigot into the flanged casing; reduce laying length enough to install between pipe flange connections.
5. Place fitting between pipe system flanged ends, use appropriate flange gaskets (not included), bolt flanged casing to pipe system flange. Adjust the length of the dismantling joint by pulling (telescoping) the flanged spigot to the correct length to meet up with the opposite pipe system flange. Align bolt holes of flanges by rotating the flanged spigot if necessary. Proceed with bolt up of flanged spigot and pipe system flange connection. Install restrainer rods to pipe system flanges, tighten back-up nuts to flange; install outside nuts onto restrainer rods and tighten. Tie rods must be in placed for restraint. 6. With 309 in place and both flanges bolted into pipe system, tighten the coupling bolts of the follower flange to compress the gasket onto the flanged spigot wall for a watertight seal. Tighten bolts to the following torque levels:
Recommended Bolt Torque: 5/8” Bolts - 75 Ft Lbs of Torque Flange bolts should be tightened before tightening nuts on the coupling end ring. Pressure test prior to backfilling. *Ensure fitting is suitable for application (confirm size, materials, pressure ratings, line content, meets local governing & association standards, etc.). Pipeline operation forces, including pressure fluctuations, thermal expansion/contraction, movement/shifting, etc. will influence the success of the application. Proper anchorage, restraint, harnessing, thrust blocks or other devices must be provided to prevent pipe movement (lateral, angular, axial) or pipe pullout from the bolt-on fitting. Inspection of the pipe integrity is the responsibility of the end user. JCM recommends the use of calibrated torque wrench. Failure to follow installation instructions will result in voided product warranty. INT309-06212023 For application review or questions contact JCM Industries at 1-800-527-8482, 903-832-2581
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