Smith-Blair Style 665 All Stainless Steel Tapping Sleeve - MJ Outlet, 4-24 in

The Smith-Blair Style 665 is an all-stainless-steel tapping sleeve with removable bolts and a stainless steel mechanical joint (MJ) outlet, for size-on-size and reducing taps on new or existing pipe, 4-24 in runs with 4-12 in outlets. The heavy-gauge Type 304 body wraps the pipe a full 360°, supporting and reinforcing it, and is fully chemically passivated for corrosion resistance. The halves join at stainless V-lugs with removable track-head bolts.

Choose the run size and measured pipe OD, then the outlet size; the part number follows.

Application: Tapping size-on-size and reducing branch connections where a full 360° seal is wanted to support and reinforce the pipe.

Key Features

• Working pressure up to 150 PSI at 4-12 in, stepping down to 75 PSI at 24 in
• Gridded gasket with a molded-in neck ring for an effective seal; nylon washers improve bolt torque
• MJ outlet for mechanical joint tapping valves
• 3/4 in NPT test outlet; accepts full-size cutters on all taps
• Certified to NSF/ANSI 61 and 372; meets applicable portions of AWWA C223

Up to 150 PSI. The working pressure of any tapping sleeve falls as pipe diameter rises; for a particular installation it also depends on the pipe type and condition, service conditions and workmanship, and never exceeds the rating of the pipe.

Materials subject to change by the manufacturer.

Carbon steel, stainless steel, cast iron, ductile iron, asbestos cement, PVC and HDPE pipe. PVC: DR 25 or thicker wall. HDPE: SDR 17 or heavier wall, underground service only, and a cutter 2 in smaller than the nominal outlet. Pipe must be round where the sleeve seats.

Choose the run size and pipe OD in the first option and the outlet size in the second; the part number shows in the last option.

• Check the pipe OD and roundness where the sleeve will sit, then clean the pipe thoroughly, especially where the gasket seats.
• Lubricate the pipe and gasket with a soap-and-water solution that meets the water and pipe supplier requirements. Mount the halves with the test outlet accessible; do not slide or rotate the sleeve on the pipe.
• Hand tighten, then tighten the nuts from the center outward, alternating sides and keeping equal gaps, until the halves conform to the pipe and reach the torque in the instructions. Use a calibrated torque wrench.
• Block the tapping valve and machine and give the valve permanent support and thrust blocking. On the MJ outlet, use only gaskets, hardware and procedures per AWWA C111.
• Hydrostatic test only, never air: test the sleeve, outlet joint and valve to no more than 1.5 times line pressure before tapping.
• Size-on-size taps on IPS pipe take a cutter at least 1/2 in smaller (12 in outlet on 12.75 in pipe: 11.5 in cutter). Re-torque after the tap and recheck the nuts 12-24 hours after installation.

From Smith-Blair Installation Instructions TI-031, in the Data Sheet tab.