Blanking disc or compression stopend: order the right closure

A blanking disc and a compression stopend can both appear in a search for a way to close a pipe connection. They are different purchasing categories. A disc is a component whose compatible host and retaining parts must be identified. A stopend is a fitting intended for a matched pipe end. The word “15 mm” does not make a loose disc and a complete fitting interchangeable.

Shop the materials: component or complete fitting?

View the Compact 15 mm blanking disc when an exact compatible component is specified. If the requirement is a separate pipe-end fitting, view the 15 mm chrome compression stopend. Confirm the supplied reference, compatible pipe or host fitting, included parts and sale quantity with APM before buying. These examples are not substitutes for one another.

What you are buying with a disc

Embrass Peerless lists reference 324235 as a Compact 15 mm blanking disc. The name identifies a component, not a complete cap with every part needed for a connection. It does not establish which existing fitting or nut accepts it, what sealing arrangement is required, or whether it suits an unidentified open connection. Those details must come from the exact manufacturer’s specification.

If you have been asked to collect a blanking disc, take the host fitting reference as well as the nominal size. A close-up of markings can help identify the enquiry, but an image of a nut alone may not resolve the body or sealing interface. Ask the person specifying the work to confirm the component combination rather than buying a disc to try in an unknown fitting.

What a complete stopend changes

The maker separately lists chrome compression stopend reference 321070 in nominal 15 mm. Its purchasing role is a pipe-end fitting, rather than a loose disc component. That distinction is useful when a new closure fitting has been specified. “Complete stopend” still does not certify the contents of a particular sale: ask what nut, olive or other specified parts accompany the supplied item.

Identify the opening before selecting a closure

Describe whether the requirement concerns a plain pipe end, a connection on an existing fitting, or a threaded port. These are different interfaces. Neither the disc nor the stopend above should be assumed to close an appliance hose nozzle, a waste-trap connection or an arbitrary threaded opening. A shared nominal size can refer to a different feature in another product family.

A useful order request states the exact maker reference of the existing part, the specified pipe type and size, and whether a component or a new fitting is required. If the existing part cannot be identified, resolve that first. Colour and outer nut size do not establish thread compatibility or the correct sealing interface.

Keep a bill of materials separate from a photograph

A picture of one disc is not a one-disc sale promise. A manufacturer’s bag quantity is not automatically the merchant’s retail quantity. Likewise, a stopend photograph can show the assembled exterior while leaving its internal contents hidden. Ask for the quantity per sale and the exact supplied components, and compare prices for the same complete requirement.

This also prevents a misleading order such as “disc with nut and olive” when the selected reference is only documented as a disc. List any separately required parts by their specified references. Do not infer that a generic nut or olive from another range completes the bill of materials.

Confirm the service without turning this into a fitting recipe

A temporary requirement does not remove the need for a suitable fitting and a properly specified closure. Confirm the application, pipe compatibility and applicable current approval with the installer and exact product documentation. This guide gives no sealing, tightening, isolation or testing procedure. It does not authorise work on a live connection or establish suitability for gas or any other particular service.

Manufacturer references

The official Compact blanking-disc page identifies 324235. The September 2024 product guide, printed pages 39 and 43, separates the disc and chrome stopend categories. Confirm the current supplied model and contents before placing an order.

Help choosing before you order

Send the required fitting reference and a clear description of the connection to APM on WhatsApp: 020 8702 8080 or 07737 263641. Confirm the supplied part, contents and sale quantity before ordering. Check the delivery information for current options and terms.