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La Marzocco T.1.174 Expansion Valve Tubve, Linea PB w/ Scales / Mult.B

Name: La Marzocco T.1.174 Expansion Valve Tubve, Linea PB w/ Scales / Mult.B
Brand: La Marzocco
SKU: LM:T.1.174
Price: 52.68 USD
Availability: InStock

$52.68

This part ships directly from La Marzocco and stock is not guaranteed. Lead time averaging 7 to 9 business days for ground shipments, 1 to 2 business days for Overnight.

If unavailable, the item will be backordered. If you have any questions check parts sheets below description. Please email or chat to confirm availability prior to ordering.

Description Details

Available end of January 2026.
Restore the critical pressure regulation system of your specialized La Marzocco Linea PB with Scales / Multi-Boiler (Mult.B) machine using the genuine OEM Expansion Valve Tubve (Part T.1.174). This precision-engineered tubing is essential for connecting the expansion valve to the water system, managing excess pressure build-up within the boiler. Designed specifically for the stringent requirements of Linea PB models equipped with integrated scales or multi-boiler configurations, this component ensures the reliable functioning of your machine's safety and pressure relief mechanism, a critical factor for consistent espresso extraction.

If you are currently trying to fix a 'La Marzocco Linea PB expansion valve leak' or working to 'restore optimal boiler pressure on your Linea PB', replacing this crucial tube can be the specific solution you need. Over time, original tubing can degrade, corrode, or fail due to continuous high pressure and temperature cycling, leading to disruptive leaks and performance instability. The T.1.174 Expansion Valve Tube provides a highly reliable, pressure-rated connection, which is vital to 'prevent excessive pressure build up' and maintain consistent internal safety checks in your commercial environment.

This specialized Expansion Valve Tube/Pipe, La Marzocco Part # T.1.174, is manufactured to exacting OEM specifications, guaranteeing a perfect fit and material compatibility with the demanding environment of your Linea PB's internal plumbing. Its design ensures fluid dynamics are maintained for precise pressure relief and system stability. For long-term reliability and to confidently solve problems related to expansion valve connectivity or pressure fluctuations, this original equipment part is an indispensable investment for maintaining your La Marzocco's premium performance.

Descriptions are for reference only. We do our best to fill in the blanks when manufacturers don’t provide descriptions, but details can vary. We strongly recommend checking with the manufacturer for the exact part number you need. Ordering based on the part number—rather than the description—is the best way to ensure compatibility.

Frequently Asked Questions

Is this expansion valve tubve, linea pb w/ scales / mult.b compatible with my La Marzocco machine?

This Part #T.1.174 fits La Marzocco machines, including the KB90, Linea PB series. Compatibility may be specific to the machine's production year and model. Please consult the technical PDFs and compatibility data on this page to confirm a match for your specific unit before finalizing your purchase.

Does this part fit any La Marzocco model not listed above?

Our current database shows fitment for the KB90, Linea PB series. However, many La Marzocco components are interchangeable across different platforms. If you have successfully installed Part #T.1.174 on a model we haven't listed, please let us know so we can update our records for the community.

If you are unsure of the fit, do not guess. To prevent downtime, please view our Compatible Parts Diagrams to check the exploded view PDF for your specific unit, or message our parts team for assistance.

Is this La Marzocco part T.1.174 in stock?

Parts from La Marzocco including this expansion valve tubve, linea pb w/ scales / mult.b ship directly from their warehouse. Please email or chat to confirm availability prior to ordering.

Is this a genuine La Marzocco factory part?

Yes. Part #T.1.174 is a 100% genuine OEM component sourced directly from the La Marzocco factory. Using original parts ensures your equipment maintains its factory-spec pressure ratings and safety certifications.

What is the lead time for La Marzocco parts?

Lead times for La Marzocco parts typically range from 7 to 9 business days depending on availability. Next Day Air parts usually ship within 1 to 2 business days.

What is the warranty on La Marzocco parts?

All La Marzocco parts come with a 365-day manufacturer's warranty. Contact us for specific warranty details.

What is the return policy on La Marzocco parts?

All La Marzocco parts come with a 30 day return policy. Please see our refund policy or chat for more details.