Drawing-based components
Circular PTFE discs and blanks cut to diameter and thickness for insulation, separation and assembly covers. Add hole locations and flatness requirements.
Procurement specification
These components are made to the required geometry. The drawing defines the finished dimensions and interfaces.
| Basic form | Circular disc without a required center bore |
|---|---|
| Dimensions | Diameter and thickness |
| Additional features | Mounting holes, slots or recessed faces |
| Face requirements | Flatness and finish where relevant |
| Supply purpose | Finished component or blank for secondary machining |
A machining blank needs allowance for the next operation. A finished cover or insulating plate needs dimensions referenced to its mounting face and holes.
Place hole patterns on a bolt circle or drawing coordinates. Specify the central opening separately when the circular plate also provides a passage.
Large, thin discs need support during handling and installation. Define the assembled support if the part must maintain a flat separating surface.
The surface finish needed for an insulating spacer plate can differ from a sealing cover. Identify the contact face and function rather than applying the same finish requirement to every surface.
Specific answers
Yes. Include hole size and positions with the outside diameter; a patterned disc remains a drawing-based part.
A pressure-retaining cover requires an engineered assembly specification. Disc diameter and material alone do not establish a working pressure.
Quote the component
Send diameter, thickness, hole layout, quantity and whether the disc is a finished component or machining blank. Identify any flatness-critical face.
Send Drawing & DimensionsContinue with the right requirement