Fractional Tube Pipe Butt Weld Excel Metal part no. Equivalent Part no. Type 1 Equivalent part no Type 2 TUBE ODQT (INCHES) MALE PIPE WELD SIZE P Ø E BODY HEX F C ØT1 D L NUT HEX W 2-MPWED-2PB 200-2-2W 2-1/8ZELW2 1/8 1/8 0.09 7/16 0.6 0.405 0.5 0.92 7/16 3-MPWED-2PB 300-2-2W 3-1/8ZELW2 3/16 1/8 0.12 1/2 0.63 0.405 0.54 1.01 1/2 4-MPWED-2PB 400-2-2W 4-1/8ZELW2 1/4 1/8 0.19 1/2 0.7 0.405 0.6 1.06 9/16 4-MPWED-4PB 400-2-4W 4-1/4ZELW2 1/4 1/4 0.19 9/16 0.7 0.54 0.6 1.06 9/16 6-MPWED-4PB 600-2-4W 6-1/4ZELW2 3/8 1/4 0.28 11/16 0.76 0.54 0.66 1.2 11/16 8-MPWED-6PB 810-2-6W 8-3/8ZELW2 1/2 3/8 0.41 3/4 0.86 0.675 0.9 1.37 7/8 8-MPWED-8PB 810-2-8W 8-1/2ZELW2 1/2 1/2 0.41 7/8 0.86 0.84 0.9 1.42 7/8 10-MPWED-8PB 1010-2-8W 10-1/2ZELW2 5/8 1/2 0.5 7/8 0.86 0.84 0.96 1.43 1 12-MPWED-12PB 1210-2-12W 12-3/4ZELW2 3/4 3/4 0.62 1-1/16 0.86 1.05 0.96 1.57 1-1/8 16-MPWED-12PB 1610-2-12W 16-3/4ZELW2 1 3/4 0.88 1-3/8 1.04 1.05 1.23 1.94 1-1/2 16-MPWED-16PB 1610-2-16W 16-1ZELW2 1 1 0.88 1-3/8 1.04 1.315 1.23 1.94 1-1/2 Excel Metal tube fittings with weld ends allow you to make tube-to-weld connections. The fittings provide leak-proof seals at the tubing connections. They also eliminate costly, hazardous leaks in instrumentation and process tubing. They permit disassembly in otherwise permanently welded tubing systems.materials include 316/316l stainless steel, steel, brass and aluminium. Note : The E dimension is the minimum opening & fittings of this group may be back drilling to lager id at pipe thread or straight thread end. Dimension l, c, d is shown in the finger-tight position. Dimensions are for reference only and are subject to change.