Quoting a T-500 Breathing Valve? Specify the Complete Assembly and the Service Scope

A quote for a TRIMIX T-500 breathing valve should identify the assembly you will receive. It should also state who will verify it against your existing unit. Ask both questions if you are ordering for a repair or keeping a part on hand. A product photo can help identify the family, but it leaves important details for the written quote.

Start with the listed assembly

The TRIMIX T-500 Breathing Valve listing identifies a black replacement breathing valve for the T-500 configuration, supplied as one valve. Its reference is TMX-ACC-VALVE-T500. The listing asks buyers to confirm the exact model and connection. It describes a single assembly, so request a contents list if you need a particular fitted part included with the quote.

The TRIMIX T-500 manual divides the model into the cylinder valve and the high-pressure cylinder in its assembly section. The product-structure diagram also labels individual elements such as the gauge, silicone mouthpiece and inflation plug. A diagram label helps explain what you are asking about. The supplier’s written contents list should confirm which of those pieces come fitted to the quoted replacement.

Ask the service provider to write down the scope

Record the markings and keep clear photos of the complete unit. If the valve is being considered because of a fault, give the service provider a short description of what happened and its service history. Ask which assembly they want to assess and whether their recommendation is inspection, service, or replacement. Keep the equipment out of use if there is an unresolved fault. The model manual calls for professional maintenance and cautions against unauthorized disassembly.

For a spare held by a shop, ask for the exact SKU and documented applicable configuration on the purchase line. Keep the provider’s confirmation with the labeled part. A technician can then see which equipment the spare was ordered for without relying on the box color.

Put three questions in the inquiry

• Does this quote refer to one complete T-500 breathing valve under TMX-ACC-VALVE-T500, and which components are fitted or separately included?
• What markings and visible connection details are needed to check it against our unit and supplied instructions?
• Who should carry out the work and confirm the final assembly before it returns to service?

Use the T-500 breathing-valve inquiry to prepare an email for this listing. Attach information only where appropriate and wait for a written part and service recommendation.

Source dates: undated TRIMIX product listing and model manual. Checked November 11, 2026.