--- title: STEEL UNO/DUO/DUO PLUS Ascaso Factory Technical Update | New OPV Model | 04/2024 description: Technical update from the Ascaso Factory regarding the change of OPV model for the Ascaso Steel UNO / DUO / DUO PLUS PID. --- [Skip to content](https://support.ascaso-usa.com/steel-uno/duo/duo-plus-ascaso-factory-technical-update-new-opv-model-04/2024#main-content) English Show submenu for translations [![AscasoUSA-logo\_300x](https://support.ascaso-usa.com/hs-fs/hubfs/AscasoUSA-logo_300x.webp?width=202&height=50&name=AscasoUSA-logo_300x.webp)](https://ascaso-usa.com/) Open main navigation Close main navigation - English Show submenu for translations - [Contact us](https://ascaso-usa.com/pages/contact-us) [Contact us](https://ascaso-usa.com/pages/contact-us) Search here for related support articles - There are no suggestions because the search field is empty. 1. [Ascaso USA Support](https://support.ascaso-usa.com/?hsLang=en) 2. [Technical Revision Updates](https://support.ascaso-usa.com/technical-revision-updates?hsLang=en) 3. [Ascaso Home Equipment](https://support.ascaso-usa.com/technical-revision-updates?hsLang=en#ascaso-home-equipment) # STEEL UNO/DUO/DUO PLUS Ascaso Factory Technical Update | New OPV Model | 04/2024 ## Technical update from the Ascaso Factory regarding the change of OPV model for the Ascaso Steel UNO / DUO / DUO PLUS PID. ![](https://support.ascaso-usa.com/hs-fs/hubfs/image-png-Feb-10-2026-07-49-33-2323-PM.png?width=238&height=62&name=image-png-Feb-10-2026-07-49-33-2323-PM.png) Technical release number: **2024\_04\_ASC** Division: **VPS** Product: **STEEL UNO,DUO,DUO PLUS** Part: **New OPV model** Update Type: **Advised ** Subject: **New OPV model.** This Technical Bulletin is regarding the introduction of a new OPV to adjust the pressure of the coffee pump. The current OPV will be replaced by a new OPV in the following machine models: STEEL UNO,DUO and DUO PLUS to improve performance of the coffee pressure.  The current model of OPV has a female-female connection and the new one is a female-male connection. See picture below for more details. **1. Current and new reference for the spare parts:** **Current reference – OPV – 41257721 (I.2821)** ![](https://support.ascaso-usa.com/hs-fs/hubfs/image-png-Feb-10-2026-07-51-00-0293-PM.png?width=588&height=362&name=image-png-Feb-10-2026-07-51-00-0293-PM.png) **New reference – OPV – 19102801 (I.2639)** ![](https://support.ascaso-usa.com/hs-fs/hubfs/image-png-Feb-10-2026-07-51-02-6408-PM.png?width=521&height=282&name=image-png-Feb-10-2026-07-51-02-6408-PM.png) **2. Fitting instructions to replace the OPV in existing equipment** To replace the current OPV for the new one, please below modification. **2.1 Modification to replace the OPV in the STEEL models.** To adapt the new OPV to the same place where the old OPV was, the fitting I.5213 needs to be removed and the new OPV will be fitted directly between the hose I.4048 and the new OPV. ![](https://support.ascaso-usa.com/hs-fs/hubfs/image-png-Feb-10-2026-07-51-31-7277-PM.png?width=497&height=410&name=image-png-Feb-10-2026-07-51-31-7277-PM.png) Dated: April 16th, 2024 - [Getting started](https://support.ascaso-usa.com/getting-started?hsLang=en#main-content) - [Barista T](https://support.ascaso-usa.com/getting-started?hsLang=en#barista-t) - [DUO/DUO PLUS](https://support.ascaso-usa.com/getting-started?hsLang=en#duo-duo-plus) - [All Ascaso Home Machines](https://support.ascaso-usa.com/getting-started?hsLang=en#all-ascaso-home-machines) - [Troubleshooting](https://support.ascaso-usa.com/troubleshooting?hsLang=en#main-content) - [DUO/DUO Plus](https://support.ascaso-usa.com/troubleshooting?hsLang=en#duo-duo-plus) - [Ascaso Home Machines](https://support.ascaso-usa.com/troubleshooting?hsLang=en#ascaso-home-machines) - [Baby T Plus](https://support.ascaso-usa.com/troubleshooting?hsLang=en#baby-t-plus) - [Technical Revision Updates](https://support.ascaso-usa.com/technical-revision-updates?hsLang=en#main-content) - [Ascaso Home Equipment](https://support.ascaso-usa.com/technical-revision-updates?hsLang=en#ascaso-home-equipment) - [FAQs](https://support.ascaso-usa.com/faqs?hsLang=en#main-content) - [Ascaso Home Machines](https://support.ascaso-usa.com/faqs?hsLang=en#ascaso-home-machines) - [Support](https://support.ascaso-usa.com/support?hsLang=en#main-content) - [Packaging / Accessories / Etc](https://support.ascaso-usa.com/support?hsLang=en#packaging-accessories-etc) - [Barista T](https://support.ascaso-usa.com/support?hsLang=en#barista-t) - [Technical Documentation](https://support.ascaso-usa.com/support?hsLang=en#technical-documentation) - [Ascaso Home Repair Technicians](https://support.ascaso-usa.com/support?hsLang=en#ascaso-home-repair-technicians) - [Ascaso Warranty](https://support.ascaso-usa.com/support?hsLang=en#ascaso-warranty) - [Ascaso USA Return Policy](https://support.ascaso-usa.com/support?hsLang=en#ascaso-usa-return-policy) - [Ascaso USA Shipping Policy](https://support.ascaso-usa.com/support?hsLang=en#ascaso-usa-shipping-policy) - [Part Diagrams](https://support.ascaso-usa.com/support?hsLang=en#part-diagrams) [![AscasoUSA-logo\_300x](https://support.ascaso-usa.com/hs-fs/hubfs/AscasoUSA-logo_300x.webp?width=202&height=50&name=AscasoUSA-logo_300x.webp "AscasoUSA-logo_300x")](https://ascaso-usa.com/) [mailto:Info@AscasoUSA.com](mailto:Info@AscasoUSA.com) Copyright © 2026, Ascaso USA