--- title: M&M International News | Blog | Crossover Subs description: Crossover Subs | Discover expert valve innovations and fluid control trends on M&M International's blog. Elevate your industry knowledge today! --- [Skip to the main content.](https://mm-intl.com/blog/tag/crossover-subs#main-content) [![m&m-logo-primary\_yellow and white-01](https://mm-intl.com/hs-fs/hubfs/m%26m-logo-primary_yellow%20and%20white-01.png?width=1500&height=1500&name=m%26m-logo-primary_yellow%20and%20white-01.png "m&m-logo-primary_yellow and white-01")](https://mm-intl.com) [![mm-logo-primary\_fc-1-3](https://mm-intl.com/hs-fs/hubfs/mm-logo-primary_fc-1-3.png?width=1368&height=1218&name=mm-logo-primary_fc-1-3.png "mm-logo-primary_fc-1-3")](https://mm-intl.com) - [About](https://mm-intl.com/about) - [Leadership Team](https://mm-intl.com/about/leadership-team) - [Sales Team](https://mm-intl.com/about/sales-team) - [Services & Capabilities](https://mm-intl.com/services) - [Products](https://mm-intl.com/products) - [Ball Valves](https://mm-intl.com/products/ball-valves) - [Inside Bop Valves](https://mm-intl.com/products/inside-bop-valves) - [Subs](https://mm-intl.com/products/subs) - [Swivels](https://mm-intl.com/products/swivels) - [Resources](https://mm-intl.com/resources) - [Work Instructions & Videos](https://mm-intl.com/resources/work-instructions-and-videos) - [Licenses](https://mm-intl.com/resources/licenses) - [Policies](https://mm-intl.com/resources/policies) - [FAQ](https://mm-intl.com/resources/faq) - [Partners](https://mm-intl.com/partners) - [Product Documentation](https://mm-intl.com/product-documentation) - Learn - [Blog](https://mm-intl.com/blog) - [CNC Machining](https://mm-intl.com/exploring-cnc-machining) - [Valve Manufacturing Process](https://mm-intl.com/exploring-valve-manufacturing-process) - [Careers](https://mm-intl.com/careers) [![Contact](https://no-cache.hubspot.com/cta/default/22100640/4537d7fa-ab4d-470a-98c1-5b62310439e0.png)](https://cta-redirect.hubspot.com/cta/redirect/22100640/4537d7fa-ab4d-470a-98c1-5b62310439e0) Toggle Menu Toggle Menu [![Contact](https://no-cache.hubspot.com/cta/default/22100640/4537d7fa-ab4d-470a-98c1-5b62310439e0.png)](https://cta-redirect.hubspot.com/cta/redirect/22100640/4537d7fa-ab4d-470a-98c1-5b62310439e0) - [About *Toggle Menu*](https://mm-intl.com/about) - [Leadership Team](https://mm-intl.com/about/leadership-team) - [Sales Team](https://mm-intl.com/about/sales-team) - [Services & Capabilities](https://mm-intl.com/services) - [Products *Toggle Menu*](https://mm-intl.com/products) - [Ball Valves](https://mm-intl.com/products/ball-valves) - [Inside Bop Valves](https://mm-intl.com/products/inside-bop-valves) - [Subs](https://mm-intl.com/products/subs) - [Swivels](https://mm-intl.com/products/swivels) - [Resources *Toggle Menu*](https://mm-intl.com/resources) - [Work Instructions & Videos](https://mm-intl.com/resources/work-instructions-and-videos) - [Licenses](https://mm-intl.com/resources/licenses) - [Policies](https://mm-intl.com/resources/policies) - [FAQ](https://mm-intl.com/resources/faq) - [Partners](https://mm-intl.com/partners) - [Product Documentation](https://mm-intl.com/product-documentation) - Learn *Toggle Menu* - [Blog](https://mm-intl.com/blog) - [CNC Machining](https://mm-intl.com/exploring-cnc-machining) - [Valve Manufacturing Process](https://mm-intl.com/exploring-valve-manufacturing-process) - [Careers](https://mm-intl.com/careers) - Example Link - Example Link - Example Link [*Facebook*](https://mm-intl.com/blog/tag/crossover-subs#0) [*Instagram*](https://mm-intl.com/blog/tag/crossover-subs#0) [*LinkedIn*](https://mm-intl.com/blog/tag/crossover-subs#0) [*Twitter*](https://mm-intl.com/blog/tag/crossover-subs#0) [*Youtube*](https://mm-intl.com/blog/tag/crossover-subs#0) [*Medium*](https://mm-intl.com/blog/tag/crossover-subs#0) # News ## The latest from M&M International! ##### Sign Up Today ### Crossover Subs [![Kelley Valve, Crossover Sub Valve and Safer Sub Valve by M&M International](https://mm-intl.com/hs-fs/hubfs/Featured%20Images/Kelley%20Valve%2c%20Crossover%20Sub%20Valve%20and%20Safer%20Sub%20Valve%20by%20M%26M%20International%20(1)%20(1).png?width=800&height=400&name=Kelley%20Valve%2c%20Crossover%20Sub%20Valve%20and%20Safer%20Sub%20Valve%20by%20M%26M%20International%20(1)%20(1).png)](https://mm-intl.com/blog/drilling-versatility-with-kelley-valves-crossover-subs-saver-subs) 4 min read #### [How Kelly Valves, Crossover Subs, and Saver Subs Enhance Operations](https://mm-intl.com/blog/drilling-versatility-with-kelley-valves-crossover-subs-saver-subs) ![Picture of M&M International](https://mm-intl.com/hs-fs/hubfs/_(250%20x%20250%20px)%20(3).png?width=30&name=_(250%20x%20250%20px)%20(3).png) [M&M International](https://mm-intl.com/blog/author/mm-international): Jan 7, 2025, 7:22:00 PM Drilling operations have always faced a crucial question: how can efficiency, safety, and performance be maximized simultaneously? The answer lies in... [Oil & Gas](https://mm-intl.com/blog/tag/oil-gas) [Crossover Subs](https://mm-intl.com/blog/tag/crossover-subs) [Drilling](https://mm-intl.com/blog/tag/drilling) [Saver Subs](https://mm-intl.com/blog/tag/saver-subs) [Kelley Valves](https://mm-intl.com/blog/tag/kelley-valves) [Read More](https://mm-intl.com/blog/drilling-versatility-with-kelley-valves-crossover-subs-saver-subs) [![crossover-subs](https://mm-intl.com/hs-fs/hubfs/cross%20over%20sub%20(1).png?width=800&height=400&name=cross%20over%20sub%20(1).png)](https://mm-intl.com/blog/the-importance-of-a-crossover-sub) 3 min read #### [The Importance of a Crossover Sub](https://mm-intl.com/blog/the-importance-of-a-crossover-sub) ![Picture of M&M International](https://mm-intl.com/hs-fs/hubfs/_(250%20x%20250%20px)%20(3).png?width=30&name=_(250%20x%20250%20px)%20(3).png) [M&M International](https://mm-intl.com/blog/author/mm-international): May 29, 2024, 8:30:00 AM There are various types of subs used in drilling, but one of the most crucial is the crossover sub. Let's examine the significance of this sub and... [Oil & Gas](https://mm-intl.com/blog/tag/oil-gas) [Manufacturing](https://mm-intl.com/blog/tag/manufacturing) [Crossover Subs](https://mm-intl.com/blog/tag/crossover-subs) [Read More](https://mm-intl.com/blog/the-importance-of-a-crossover-sub) [![m&m-logo-primary\_yellow and white-01](https://mm-intl.com/hs-fs/hubfs/m%26m-logo-primary_yellow%20and%20white-01.png?width=150&height=150&name=m%26m-logo-primary_yellow%20and%20white-01.png)](https://22100640.hs-sites.com/home-mm-international)   - [Policies](https://mm-intl.com/resources/policies) - [Licenses](https://mm-intl.com/resources/licenses) - [FAQ](https://mm-intl.com/resources/faq) - [Careers](https://mm-intl.com/careers) © 2026 M&M International [*LinkedIn*](https://www.linkedin.com/company/m%26m-international-llc/)[*YouTube*](https://www.youtube.com/channel/UChmuVsaBJTb373CKC14NqxQ) *Return to Top*