Product Description
Ensure your Birchmeier backpack sprayer stays efficient with the Birchmeier Check Valve 11388501 SB. This sprayer check valve is designed to prevent pressure loss when the pump isn’t in use, ensuring smooth operation and consistent spray performance. Built with durable materials, it offers reliability under demanding tasks and fits models like Flox, Iris, Senior, and BCS. It installs easily, reducing downtime while keeping your sprayer operational. Avoid interruptions—equip your sprayer with this essential Birchmeier backpack valve today.
Reliable Flow Control and Performance for Birchmeier Backpack Sprayers
The Birchmeier Check Valve 11388501 SB is an essential component for professionals relying on consistent spraying performance. By maintaining proper pressure and preventing backflow, it supports uniform chemical application, whether for pest control, weed management, or other precision tasks. Its one-way flow mechanism prevents fluid from reversing, ensuring the pump builds and retains pressure effectively.
Integrated with an O-ring for a secure seal, the sprayer check valve minimizes leaks and resists wear from chemicals. It’s built to withstand tough field conditions, thanks to its debris-blocking design that helps avoid clogs and malfunctions, saving time on repairs. This vital Birchmeier backpack part simplifies maintenance, making it a practical, must-gave solution for pest control experts focused on accuracy and reliability under demanding circumstances.
Quantity Discounts:
- Purchase 5 – 11 units – 10% discount
- Purchase 12 or more – 20% discount
NOTE: Debris in check valve can prevent backpack from building pressure.
Download the Birchmeier Backpack Parts Breakdown
Check out the video for the Birchmeier Check Valve on the Video Tab on this page!

Shop Quality Equipment and Parts Online
QSpray.com delivers reliable, high-quality sprayers built for tough jobs, backed by over 30 years of expertise. From durable brass components to hard-to-find repair kits, we ensure your equipment performs consistently with minimal downtime. Most orders ship quickly, so you’ll have what you need to stay on schedule. Browse top products, like the Birchmeier sprayer check valve, and a wide range of replacement parts for your spray equipment. Trust QSpray.com for expert solutions that keep your pest control and lawn care operations efficient and hassle-free.
Specifications
- Weight: 0.25 lb
- Width: 2 in
- Depth: 2 in
- Height: 2 in