J-bend

Plumbing drainage curve

A J-bend is a curved section of pipe shaped like the letter J, most commonly the U-shaped trap beneath a sink that holds water to block sewer gases.

The term also describes any J-shaped curve in tubing, ductwork, or similar materials: The plumber replaced the corroded J-bend under the bathroom sink.

function

trap

Device for catching animals

blockage · drainage · ventilation · waste · sanitation · backflow · prevention · venting · air gap

plumbing

P-trap

Curved pipe holding water barrier

coupling · tailpiece · drainpipe · PVC · copper · brass · chrome · washer · gasket · flange

shape

curve

Smooth, angleless line

U-shape · loop · crook · dip · angle · sweep · contour

installation

wrench

Tool for turning fasteners

connect · replace · repair · leak · silicone · plumber's putty · Teflon tape · maintenance · DIY

Categories
Opposites
pipe geometry/curvature

J-bendstraight pipe

Uninterrupted cylindrical conduit

S-bend · U-bend · P-trap · elbow

alphabetic pipe shapes

J-bendS-bend

Two opposing curves joined

P-trap · U-bend · S-trap · L-bend

Family

bend, bends, bent, bending, bendable, unbent

Familiarity
Top 1,000,000
Profile
Used worldwide · Timeless · Concrete · Rated G