Angle · Radius · Wall Thickness

Pipe Fittings and Elbows

Pipe fittings and elbows selected by routing geometry, pipe wall, material grade, connection method and the governing piping specification.

90 degree pipe elbow with a smooth curved body and open ends
Equal pipe tee with a straight run and a similar-size perpendicular branch
Two concentric pipe reducers with smaller openings centred above larger ends
Socket weld elbow with a recessed pipe socket and curved forged-style body

Specification basis

Confirm the applicable drawing and requirements

ASME B16.9 ASME B16.11 Approved isometric
Get a quote

Inspection scope

Defined against the approved order

DrawingRevision control
RecordsAgree at enquiry
Pipe fittings and long radius bends arranged in rows for dimensional comparison Category Pipe Fittings and Elbows Angle · Radius · Wall Thickness
Common angles

180° returns also listed

45° / 90°

Specification input

Geometry

State the radius basis

R / D

Specification input

Specs

About this range

Fit the route and the pressure boundary

Pipe fittings change direction, create branches and connect different pipe sizes while continuing the piping system’s pressure boundary. JINYI’s range includes steel pipe elbows, return elbows, tees, crosses, concentric reducers, bends, coiled pipe and socket-weld elbows. Buttweld pipe fittings must match the mating pipe ends and the layout dimensions on the isometric drawing. A fitting with the correct nominal size can still be wrong if its centre-to-end dimension, wall thickness, end preparation or material specification differs from the required design.

  • ASME B16.9 covers factory-made wrought buttwelding fittings in NPS 1/2–48, including dimensional and marking requirements. Its published scope is not a blanket JINYI supply-range claim.
  • For long radius pipe elbows to ASME B16.9, distinguish bend angle, centreline radius and centre-to-end dimensions. A long-radius elbow is commonly designated 1.5D using nominal pipe size as the radius basis.
  • Specify schedule or actual wall thickness at each connection. A wall schedule does not represent one fixed thickness across all nominal pipe sizes.
  • For carbon steel buttweld pipe fittings for process piping, identify the required material standard and grade, heat-treatment condition and service-temperature requirements.
  • A reducing tee needs run and branch sizes; a reducer needs both end sizes and concentric or eccentric geometry. Record orientation on the piping drawing where it affects drainage or venting.
  • Socket-weld forged fittings use a separate specification route. ASME B16.11 identifies socket-weld Classes 3000, 6000 and 9000; these labels should not be applied indiscriminately to buttweld fittings.
Explore pipe fittings
Featured selection

Featured pipe fittings and elbows

Selected pipe fittings and elbows for project enquiries. Compare the connection, installation and specification details, then request a quotation for your required configuration.

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90 degree pipe elbow with a smooth curved body and open ends

A 90 degree pipe elbow changes the pipeline direction through a right angle. Specify dimensions, material and service conditions for a Jinyi quotation.

  • Pipe Fittings and Elbow

90 Degree Pipe Elbow

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Equal pipe tee with a straight run and a similar-size perpendicular branch

A equal pipe tee creates a T-shaped junction with equal nominal sizes on its run and branch. Specify dimensions, material and service conditions for a Jinyi…

  • Pipe Fittings and Elbow

Equal Pipe Tee

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Two concentric pipe reducers with smaller openings centred above larger ends

A concentric pipe reducer joins two pipe sizes while keeping their centre lines aligned. Specify dimensions, material and service conditions for a Jinyi quotation.

  • Pipe Fittings and Elbow

Concentric Pipe Reducer

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45 degree pipe elbow showing its shorter curved body and angled ends

A 45 degree pipe elbow introduces a 45-degree direction change in a specified piping run. Specify dimensions, material and service conditions for a Jinyi quotation.

  • Pipe Fittings and Elbow

45 Degree Pipe Elbow

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Long radius pipe bends with extended straight tangent ends

A long radius pipe bend changes the pipe direction over a specified curved length and may include straight tangent sections. Specify dimensions, material and service conditions…

  • Pipe Fittings and Elbow

Long Radius Pipe Bend

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Socket weld elbow with a recessed pipe socket and curved forged-style body

A socket weld elbow changes direction between two specified socket-weld pipe connections. Specify dimensions, material and service conditions for a Jinyi quotation.

  • Pipe Fittings and Elbow

Socket Weld Elbow

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Products · Specifications · Inspection · Questions

Pipe Fittings and Elbows catalogue

Browse 13 products in this category. Search the range or compare the available enquiry options. Final materials, dimensions and ratings are confirmed against the selected product and your specification.

Showing 1–13 of 13 products

45 degree pipe elbow showing its shorter curved body and angled ends

A 45 degree pipe elbow introduces a 45-degree direction change in a specified piping run. Specify dimensions, material and service conditions for a Jinyi quotation.

  • Pipe Fittings and Elbow

45 Degree Pipe Elbow

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90 degree pipe elbow with a smooth curved body and open ends

A 90 degree pipe elbow changes the pipeline direction through a right angle. Specify dimensions, material and service conditions for a Jinyi quotation.

  • Pipe Fittings and Elbow

90 Degree Pipe Elbow

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180 degree return elbow with two parallel downward-facing openings

A 180 degree return elbow turns a pipe route back through a half-circle, placing its connection ends in a parallel arrangement. Specify dimensions, material and service…

  • Pipe Fittings and Elbow

180 Degree Return Elbow

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Coiled pipe with repeated circular turns stacked vertically

A coiled pipe follows a repeated curved path according to a coil drawing. Specify dimensions, material and service conditions for a Jinyi quotation.

  • Pipe Fittings and Elbow

Coiled Pipe

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Two concentric pipe reducers with smaller openings centred above larger ends

A concentric pipe reducer joins two pipe sizes while keeping their centre lines aligned. Specify dimensions, material and service conditions for a Jinyi quotation.

  • Pipe Fittings and Elbow

Concentric Pipe Reducer

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Equal pipe tee with a straight run and a similar-size perpendicular branch

A equal pipe tee creates a T-shaped junction with equal nominal sizes on its run and branch. Specify dimensions, material and service conditions for a Jinyi…

  • Pipe Fittings and Elbow

Equal Pipe Tee

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Long radius pipe bends with extended straight tangent ends

A long radius pipe bend changes the pipe direction over a specified curved length and may include straight tangent sections. Specify dimensions, material and service conditions…

  • Pipe Fittings and Elbow

Long Radius Pipe Bend

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Pipe cross with four openings arranged as a run and opposing branches

A pipe cross forms a four-way junction in a specified piping arrangement. Specify dimensions, material and service conditions for a Jinyi quotation.

  • Pipe Fittings and Elbow

Pipe Cross

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Reducing pipe tees with smaller side branches than the main run

A reducing pipe tee connects a smaller branch to a larger main run through a T-shaped fitting. Specify dimensions, material and service conditions for a Jinyi…

  • Pipe Fittings and Elbow

Reducing Pipe Tee

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Segmented pipe elbow with visible circumferential weld seams

A segmented pipe elbow forms a change of direction from joined pipe sections. Specify dimensions, material and service conditions for a Jinyi quotation.

  • Pipe Fittings and Elbow

Segmented Pipe Elbow

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Socket weld elbow with a recessed pipe socket and curved forged-style body

A socket weld elbow changes direction between two specified socket-weld pipe connections. Specify dimensions, material and service conditions for a Jinyi quotation.

  • Pipe Fittings and Elbow

Socket Weld Elbow

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Suction bells with wide flared openings and short narrow necks

A suction bell provides an enlarged inlet form for a specified suction arrangement. Specify dimensions, material and service conditions for a Jinyi quotation.

  • Pipe Fittings and Elbow

Suction Bell

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U-shaped pipe bends with parallel straight legs and curved returns

A u-shaped pipe bend returns a pipe route through a curved section with two straight legs. Specify dimensions, material and service conditions for a Jinyi quotation.

  • Pipe Fittings and Elbow

U-Shaped Pipe Bend

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Product capabilities

Routing geometry, wall and weld preparation

Buttweld pipe fittings should be ordered from an itemised isometric or bill of materials that defines every connection. Steel pipe elbows need a clear angle and radius designation; larger fabricated or segmented elbows need their own weld layout and design basis. Formed bends, coiled pipe and suction bells also require drawing-specific geometry and should not be assumed to fall within the same standard as a stock elbow. Procurement should distinguish a standard fitting from a fabricated assembly before comparing quotations.

  • Wall: Schedule or measured mm
  • Geometry: Angle, radius and length
  • Material: Standard and exact grade
  • End preparation: Buttweld / socket weld
Explore our capabilities
Elbow forming illustration with a hydraulic forming machine and steel elbows

Specification

Fitting form · Connection size

Common angles

45° / 90°

180° returns also listed

Geometry

R / D

State the radius basis

RFQ Drawing + duty
Talk to an engineer
Selection workflow

Four checks before specifying pipe fittings

Use these checks to define the pipe fittings assembly before comparing prices. Record the decision against the drawing revision and obtain confirmation of the proposed model’s limits.

  • Resolve the piping geometry Confirm angle, radius, centre-to-end dimensions, branch orientation and the space available on the isometric.
  • Match the pipe ends Specify nominal size, actual OD, schedule or wall, bevel and any internal alignment requirements.
  • Choose the material route Define material grade, manufacturing form, heat treatment and any service-specific testing requirement.
  • Check the final item schedule Reconcile drawing revision, quantities, marking, inspection scope and protection of prepared weld ends.
See our manufacturing process

Dimensions and service conditions should be agreed before ordering.

Engineering enquiry

Long radius pipe elbows to asme b16.9

For pipe fittings, send the fitting type, all end sizes, wall schedule, material grade, angle or radius and end preparation. Attach the isometric, drawing revision, quantities and inspection requirements; for coils or fabricated elbows, include complete geometry and the approved design basis.

  • Elbows and return bends Provide angle, centreline radius, tangent lengths, ovality requirements and all terminal dimensions.
  • Tees and crosses Identify run and branch sizes, wall thickness at each end and orientation relative to the installation.
  • Reducers and suction bells Supply both diameters, overall length, concentricity or offset and the required transition profile.
  • Coils and fabricated elbows State coil diameter, pitch, turns, segment arrangement, weld locations and the approved design calculation basis.
Ask for custom machining

Send drawings and the item schedule with your enquiry.

Quality control & testing

Inspection requirements for pipe fittings

Fitting inspection should compare the manufactured geometry with the approved dimensional standard or fabrication drawing. Check end diameters, wall thickness, angle and alignment before welding. Material traceability and any nondestructive examinations must follow the agreed purchase specification.

Discuss inspection requirements Documentation scope agreed per order

Inspection checklist

Specify in the order
  • End dimensionsOutside diameter, wall thickness, bevel and roundness at each end.
  • Routing geometryElbow angle, radius, centre-to-end and branch orientation.
  • Body conditionSurface defects, forming condition and weld appearance where applicable.
  • Material identityGrade, heat reference and heat-treatment records when specified.
  • Agreed examinationsNDT, PMI or mechanical-test documentation to the order scope.

Order documentation

Scope to confirm
  • Approved drawingDimensions, revision and acceptance criteria
  • Material recordSpecify traceability and document type
  • Inspection reportAgree measured items and test scope
  • Project approvalsConfirm any required certificates before ordering
ASME B16.9ASME B16.11Approved isometric
6 Review steps
Custom fitting inspection illustration showing flange thickness measured with a micrometer

Quality

Inspection · gauging
Standards · documents

Review checkpoints

6
The checklist below Order-specific

Document control

RFQ
Agree the drawing revision

Six inspection planning steps

A purchase-order checklist
  1. 1

    Drawing review

    Confirm the specification, revision and the selected pipe fittings configuration.

  2. 2

    End dimensions

    Outside diameter, wall thickness, bevel and roundness at each end.

  3. 3

    Routing geometry

    Elbow angle, radius, centre-to-end and branch orientation.

  4. 4

    Body condition

    Surface defects, forming condition and weld appearance where applicable.

  5. 5

    Material identity

    Grade, heat reference and heat-treatment records when specified.

  6. 6

    Agreed examinations

    NDT, PMI or mechanical-test documentation to the order scope.

Industries

Applications and specification priorities

Common application contexts for pipe fittings. Each installation needs a service-specific selection; the entries below describe engineering priorities, not customer projects or approvals.

Process pipework Material and wall schedule 90 degree pipe elbow with a smooth curved body and open ends
DutyMaterial and wall scheduleGeometryFitting form
InterfaceConnection sizeEnquiryDrawing + service data
DutyMaterial and wall scheduleGeometryFitting form
Water systems Bends and branch geometry Equal pipe tee with a straight run and a similar-size perpendicular branch
DutyBends and branch geometryGeometryFitting form
InterfaceConnection sizeEnquiryDrawing + service data
DutyBends and branch geometryGeometryFitting form
Equipment skids Compact routing dimensions Two concentric pipe reducers with smaller openings centred above larger ends
DutyCompact routing dimensionsGeometryFitting form
InterfaceConnection sizeEnquiryDrawing + service data
DutyCompact routing dimensionsGeometryFitting form
Thermal systems Temperature and expansion Long radius pipe bends with extended straight tangent ends
DutyTemperature and expansionGeometryFitting form
InterfaceConnection sizeEnquiryDrawing + service data
DutyTemperature and expansionGeometryFitting form
Pump suction lines Reducer and bell geometry Socket weld elbow with a recessed pipe socket and curved forged-style body
DutyReducer and bell geometryGeometryFitting form
InterfaceConnection sizeEnquiryDrawing + service data
DutyReducer and bell geometryGeometryFitting form
Fabricated pipe spools Weld-end alignment Coiled pipe with repeated circular turns stacked vertically
DutyWeld-end alignmentGeometryFitting form
InterfaceConnection sizeEnquiryDrawing + service data
DutyWeld-end alignmentGeometryFitting form

Technical selection and common questions

More from the range

Related products for your assembly

Explore complementary products from other JINYI categories. Check each product’s dimensions and connection requirements against your assembly drawing.

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Weld neck flange showing the tapered hub, bore and drilled rim
Nominal size
4 in / DN100
Pressure designation
Class 150
Outside diameter
228.6 mm
Flange thickness
22.35 mm

Weld Neck Flange

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Grooved pipe coupling with red two-piece housing and side bolts
Nominal size
4 in / DN100
Pipe outside diameter
114.3 mm
Assembled dimension X
146 mm
Assembled dimension Y
210 mm

Grooved Pipe Coupling

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Clamp pipe shoe supporting a pipe section above a structural base
Nominal size
4 in / DN100
Pipe outside diameter
114.3 mm
Support height
100 mm
Overall length
316 mm

Clamp Pipe Shoe

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Rubber expansion joints with black flexible bodies and green flanges
Nominal size
DN100 / 4 in
Face-to-face length
150 mm
Axial extension
10 mm
Axial compression
19 mm

Rubber Expansion Joint

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Request a quote

Request a pipe fittings quotation

For pipe fittings, send the fitting type, all end sizes, wall schedule, material grade, angle or radius and end preparation. Attach the isometric, drawing revision, quantities and inspection requirements; for coils or fabricated elbows, include complete geometry and the approved design basis.

Request a quote Talk to an engineer

Attach the approved drawing, item schedule and service conditions. Identify mandatory documents, inspection hold points and delivery requirements when requesting a quotation.

  • Drawing-based review
  • Service-specific selection
  • Inspection scope agreed