How do you show a supplier the single-use assembly you want built?

Single-use assembly drawing tool

Place bags, tubing, connectors and filters and join them up to make the first drawing you send to a supplier. The numbered drawing comes with a component list, a bill of materials, a requirements memo and an inquiry email, ready to print or save as PDF.

When to use itWhen you ask a supplier to build or quote a custom single-use assembly, a drawing with consistent part names and shapes tells them what you want far better than a paragraph of text.

1Place partsDrag bags or filters from the list on the left onto the drawing.
2Connect with tubingDrag from a part's port (○) to another port.
3Export the request packWrite the requirements memo, then print or save the drawing and BOM together as PDF.

This is not an engineering or manufacturing drawing. It is a concept drawing for requests, discussions and alignment. Confirm dimensions, materials, sterilization compatibility and pressure ratings with the supplier.

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Before you ask

What to decide before you ask a supplier

Suppliers ask back about the same few items. Decide them before you start drawing and you cut the back-and-forth before a quote. These are the four to put on the drawing and in the requirements memo, in the order you connect things.

What each end connects to, and how

Specify the line from its two ends, not from the middle.

Stainless tanks and piping: TC fitting
Weldable tubing to weldable tubing: Weld
Assemblies joined without opening them: Aseptic connector

Genderless

Identical halves connect

Cytiva ReadyMateCPC AseptiQuik G

Male / female

A male half mates a female half

Sartorius Opta SFTMerck Lynx S2S

A TC (tri-clamp) fitting holds a gasket between two ferrules and is tightened with a clamp. Aseptic connectors from different series generally do not connect to each other, so write the counterpart equipment and its connector series in the remarks of the part at each end of the drawing.

Where to enter itEnd part (right panel)Remarks

Key pointWith the counterpart's series and type on the drawing, you don't find out on delivery that it won't connect.

Tubing ID × OD and length

Give tubing size as two numbers: inside diameter × outside diameter.

At the same 1/4 in ID, Sartorius Tuflux TPE comes in 3/8 in and 7/16 in OD. A different wall thickness can mean a different pump head.

≈32 mL

Liquid held in 1 m of 1/4 in ID tubing (about 95 mL in 3 m)

≈34.8 mm

Inside diameter of the tube that a 1.5 in TC fitting goes on

The 1.5 in of a TC fitting is a nominal size that refers to the outside diameter of the stainless tube it joins, not to the width of the flow path.

Where to enter itTubingMaterialIDODLength

Key pointWhenever you give an inch figure, say whether it is the ID, the OD or the nominal size.

Materials and sterilization method

Use thermoplastic elastomer (TPE) tubing in any section that will be welded or sealed.

Tubing material and whether it can be welded or sealed (Sartorius comparison table)
Material	Weld	Seal
SiliconeTuflux SIL	No	No
TPETuflux TPE	Yes	Yes

25–40 kGy

Validated gamma dose range for Merck Mobius

Silicone cures with heat, so it does not melt when heated again. With gamma irradiation capacity tight, many suppliers have added X-ray irradiation as an alternative. In an assembly irradiated at the factory, every component inside must withstand the same method and dose.

Where to enter itRequirements memoSterilization methodTemperature conditions

Key pointSettle the sterilization method in the requirements memo first and you avoid re-selecting parts later.

Documents and lead time

Documents and lead time are part of the specification too.

Validation GuidePer component
Certificate of QualityPer lot
Extractables dataBPOG, USP <665>

6–16 weeks or more

Extra lead time that customization can add (Parker white paper)

Extractables are substances that can migrate from a component into the liquid. USP <665> became official in May 2026. USP Class VI refers to the biological reactivity tests in USP <88>, which are separate from extractables assessment.

Where to enter itRequirements memoRequested deliveryQtyRemarks

Key pointState prototype and production quantities, the delivery date you need and the documents you expect, and the quote starts from the right assumptions.

Making a request pack with this tool

1Pick a templateUnder "Start from a template", pick the closest drawing. If none fits, start from scratch.
2Place both endsPlace the end parts and note the counterpart equipment and connector series in the part's remarks.
3Add the tubingEnter the material, ID × OD and length. Inch sizes show the mm value alongside.
4Write the requirements memoEnter the use, process fluid, sterilization method, temperature conditions, requested delivery and quantity.
5Export the request packPrint or save as PDF the drawing, component list, bill of materials, requirements memo and inquiry email in one go.

Find suppliers in Japan

What you enter is saved only in this browser and is never sent to Proglenth's servers. In a share link, the drawing sits after the “#” in the URL, which browsers do not send to the server. Part shapes are generic schematics and do not represent any specific product. To find who sells each part in Japan, see the supplier directory.