RJT Male × Liner with Hex Nut 90° Short-Radius Elbow (STBMPWL90)

Pre-Welded Asymmetric RJT Union Bend Construction

This 90-degree short-radius RJT bend (supplier code STBMPWL90) is fabricated from 1.6 mm wall 316 stainless steel tubing with a 1.5× diameter centerline bend radius and a 320 grit finish. Rather than terminating in identical ends, the bend is factory pre-welded with a threaded RJT male part on one leg and an RJT weld liner carrying a captive hexagonal union nut on the opposite leg.

Asymmetric Leg Lengths and Mating Orientation

Because one leg carries the RJT liner and hex nut while the other carries the external RJT male thread, the two centerline-to-end dimensions differ across every size: dimension C (liner/nut leg) spans 76.65 mm to 171.9 mm, whereas dimension D (male leg) spans 84.15 mm to 179.4 mm across the 1-1/2 inch to 4 inch range. The male leg mates with an RJT nut-and-liner end, while the hex-nut leg threads onto a fixed RJT male ferrule.

Size Selection and O-Ring Seal Pairing

Available in five tube sizes—1-1/2 inch (38.1 mm), 2 inch (50.8 mm), 2-1/2 inch (63.5 mm), 3 inch (76.2 mm), and 4 inch (101.6 mm)—each bend requires matching RJT O-ring seals at both union joints. Order the corresponding size RJT O-rings separately to match process fluid and CIP temperature.

Spanner Clearance and Flow-Direction Layout

Before installation, confirm which equipment port presents a male thread and which presents a liner-and-nut end so the 7.5 mm leg-length offset between C and D aligns with pipe supports and leaves spanner clearance.