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The MUELLER STREAMLINE 436-015 is a 1-1/2 inch PVC Schedule 40 socket x male threaded adapter designed for drain, waste, and vent (DWV) piping systems. This straight-pattern fitting connects a hub (socket) inlet to a male threaded outlet, allowing transitions between solvent-welded pipe runs and threaded connections. Manufactured to ASTM D2665, F1498, D331, and D1784 material and dimensional standards, it delivers consistent wall thickness and reliable joint integrity. Licensed plumbers and pipefitters install this type of adapter in residential and light commercial DWV systems where a glued pipe section must terminate at a threaded port.
This adapter is suited for DWV applications as well as systems handling mild chemicals and corrosive media where PVC is an appropriate material choice. The smooth interior bore resists scaling and supports unrestricted flow. It is a standard fitting in residential drain and vent rough-in work, utility drain lines, and chemical-resistant piping installations. Certified to NSF 14 and listed under UPC, it meets the plumbing code requirements common to most jurisdictions in North America.
Designed as an OEM-style replacement and standard fitting for 1-1/2 inch PVC Schedule 40 DWV piping systems in residential and light commercial applications.
Installation is performed by a licensed plumber in accordance with applicable local plumbing codes and the International Plumbing Code (IPC). The socket end is solvent-welded using PVC primer and cement rated for DWV service — do not omit the primer step on Schedule 40 fittings. The male threaded end should be wrapped with PTFE tape or pipe thread sealant before assembly. Shut off all water supply and verify the drain line is clear before cutting into an existing system.
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