YOUR DRAWING. YOUR REQUIREMENT.

Custom / Drawing-Based Fittings

Drawing-based socket weld fittings are defined by a project requirement when a catalogue description does not fully describe the needed component.

01 / PRODUCT OVERVIEW

Let the drawing define the fitting.

A custom requirement may involve a particular interface, non-standard dimensions, special tolerances or an unusual material. The controlled drawing and specification establish what is required.

The customer-approved drawing defines the geometry and interfaces. FERROBEND supplies against the specified material, dimensions, quantity and acceptance requirements, subject to confirmation of manufacturing feasibility and availability.

02 / DRAWING-CONTROLLED FEATURES

What makes the component drawing-based?

Interface geometry

The drawing defines how the fitting meets the adjoining pipe or assembly. A family name alone may not express the interface.

Dimensions & tolerances

Controlled dimensions identify the intended geometry; tolerances define the permitted variation of specified features.

Material & acceptance

Referenced specifications identify the material and acceptance requirements associated with the drawn component.

03 / PRODUCT KNOWLEDGE

Understand what a controlled drawing defines.

Standard description versus drawing-controlled detail

A family name explains a fitting’s general function. A controlled drawing can define a particular interface, geometry or tolerance that the family name does not express. The drawing and referenced specifications work together to describe that component.

Understand governing references
What is a critical interface?

It is a feature that controls how the fitting meets another component or assembly. Its geometry and tolerance affect fit, so it needs a clear drawing reference.

Why is the drawing revision part of the description?

A revision identifies the issue of the drawing that defines the current component. Different issues may contain different geometry, materials or acceptance details.

04 / SELECTION CONSIDERATIONS

What matters in the application.

Critical features

Identify the dimensions and interfaces that control fit or function.

Document control

Use the current drawing number, revision and units. Flag inconsistent references.

Acceptance scope

State material, quantities, inspection and documentation requirements at the start.

05 / UNDERSTAND THE SPECIFICATION

What to include.

Custom Fittings: specification checklist

  • Drawing number, revision and units
  • Material specification and required quantity
  • Critical dimensions, tolerances and acceptance requirements
  • Inspection, documentation and delivery requirements
Order specificationDimensions, ratings, tolerances and availability are confirmed against the actual requirement. These illustrations are not manufacturing drawings.

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