What are the basic terms of pipe fittings?

Structural wall tube structuredwallpipe

The composite pipe wall structure and the pipe wall composed of a multi-layer material are collectively referred to as an open pipe rib shape, a closed rib shape (hollow) and the like.

Shaped wall tube profiledwallpipe

The inner wall is smooth, and the outer wall is a spiral, or a ring or a braided rib wall structure pipe.

Double wall corrugated pipe doublewallcorrugatedpipe

The inner wall is smooth and flat, the outer wall is trapezoidal or curved corrugated ribs, and the inner wall and the outer wall corrugated are hollow shaped tube wall tubes.

Annular rib tube annularribbedpipe

The inner wall of the tube is smooth and flat, and the outer wall has a shaped tube wall material with annular reinforcing ribs.

Spiral rib tube helicalribbedpipe

The inner wall of the pipe is smooth and flat, and the outer wall reinforcing rib is spiral, and the shaped pipe wall pipe made by the spiral winding process.

Flat wall tube plainwallpipe

A homogeneous tube wall pipe with a smooth outer wall of the inner wall of the tube.

Nominal diameter (DN) nominaldiameter

The nominal diameter of the tubing of a thermoplastic pipe system, indicating the inner diameter of the pipe, the size of the outer diameter, or an approximation thereof.

Circumferential bending stiffness ring-bendingstiffness

A measure of the ability of a pipe to resist circumferential deformation. The color test method or calculation method is fixed, and the unit is N/m2 or KN/m2.

Elastic diameter deformation rate elasticdiameterderormationrate

Under the external pressure load, the ratio of the vertical elastic deformation of the pipe diameter to the diameter of the central axis of the pipe wall before loading. Expressed as a percentage, determined by a flattening test.

Equal path straight through equalcoupling

Reducing straight through reducingcoupling

Inner teeth straight through femalecoupling

Outer teeth straight through straighttubewithoutside90

Equal diameter elbow 90equalelbow45

Equal diameter elbow 45equalelbow

External elbow maleelbow

Equal path straight through equalcoupling

Reducing straight through reducingcoupling

Inner teeth straight through femalecoupling

Outer teeth straight through straighttubewithoutside90

Equal diameter elbow 90equalelbow45

Equal diameter elbow 45equalelbow

External elbow maleelbow

Inner tooth elbow femaleelbow

Equal-diameter tee equaltee

Reducing tee reducingtee

Teeth femaletee

External teeth three-way maletee

Cap capsch

Representative pressure lr

Long radius or 1

Half size SIZE

Quantity QTY

Carbon steel elbow CarbonSteelElbow

Stainless steel elbow StainlessSteelElbow

High Pressure Elbow High-PressureElbow

Concentric Reducers ConcentricReducers

Eccentric reducer EccentricReducers

High pressure reducer High-pressureReducers

Stainless steel equal tee StainlessStraightTee

Carbon steel equal-diameter tee CarbonStraightTee

Stainless steel equal-diameter four-way StainlessStraightCross

High-pressure three-way High-pressureTee

Wrought three-way ForgedTee

Reducing joint template

Cap Caps flange flange

Long and short diameter elbows longandshortradiuselbows

Concentric and eccentric reducer concentricandeccentricreducers

Equal diameter and reducer tee straightandreducingoutlettees

Head size CONCENTRICREDUCERTeeEqual

Equal three-way equal tee StraightTee

Reducing Tee ReducingTee

Track four-way StraightCross90°

Short radius elbow 90°SSElbow(SR)90°

Long radius elbow 90°SSElbow(LR)

High pressure thick wall elbow ThicknessElbowU

Tube ReturnBend

Blind flange BlankFlange

Bent pipe