Check valves
Ball Check Valve (Full Bore)
Ball check valve, of robust ductile iron design. Its floating ball mechanism is self-cleaning and does not jam, offering a full bore with no head loss. The ideal solution for preventing backflow in wastewater and pumping stations.
- 9references
- 50 – 300 mmsize range
- 8in stock
The GA18-1 ball check valve is the most reliable engineering solution for backflow prevention, especially in fluids with suspended solids. Its intelligent design is based on a rubber-coated ball that moves freely inside the valve body.
During normal flow, the ball moves into a side cavity, allowing a 100% full, unobstructed bore, which minimises head loss and prevents debris build-up. If the flow stops or tries to reverse, the ball instantly rolls back onto its seat, creating a tight, secure closure that prevents backflow and protects pumps from reverse rotation.
This self-cleaning mechanism makes it far superior to flap valves in wastewater applications, as it is practically impossible for it to jam. Its ductile iron body and removable top cover guarantee extreme durability and easy access for inspection, without the need to remove the valve from the pipeline.
- Mechanism
- Self-cleaning floating ball.
- Design
- Full bore for unobstructed flow.
- Body and cover
- GGG-50 ductile iron.
- Ball
- Metal core fully encapsulated in rubber (EPDM or NBR).
- Coating
- High-adhesion, thick epoxy paint.
- Maintenance
- Flanged top cover for easy access to the interior.
- Connections
- Flanged, drilled to UNE-EN 1092-2 (PN10/16).
- DN 50Face-to-face length 202 mm
- DN 65Face-to-face length 220 mm
- DN 80Face-to-face length 225 mm
- DN 100Face-to-face length 240 mm
- DN 125Face-to-face length 315 mm
- DN 150Face-to-face length 320 mm
- DN 200 (PN10)Face-to-face length 400 mm
- DN 250 (PN10)Face-to-face length 500 mm
- DN 300 (PN10)Face-to-face length 600 mm
Full dimensions and weights in the Technical data sheet (PDF).
- Wastewater pumping stationsIts main application, thanks to its anti-jam design.
- Sewerage and drainage networksTo prevent water returning in collectors and wells.
- Pump dischargeProtects pumps from backflow and reverse rotation, a common cause of breakdowns.
- Lines with sludge or fluids containing solidsThe full bore and rolling ball prevent solids from becoming trapped.
- Irrigation systems with unfiltered waterIdeal for systems drawing water from rivers or ponds with possible sediment.
References
Flanged ball check valve
DN
| Reference | Product | Size | Availability | Actions |
|---|---|---|---|---|
| VR890014 | Flanged ball check valve DN 50 | DN 50 | In stock | |
| VR890015 | Flanged ball check valve DN 65 | DN 65 | In stock | |
| VR890016 | Flanged ball check valve DN 80 | DN 80 | In stock | |
| VR890017 | Flanged ball check valve DN 100 | DN 100 | In stock | |
| VR890018 | Flanged ball check valve DN 125 | DN 125 | In stock | |
| VR890019 | Flanged ball check valve DN 150 | DN 150 | In stock | |
| VR890020 | Flanged ball check valve DN 200 | DN 200 | In stock | |
| VR890021 | Flanged ball check valve DN 250 | DN 250 | Made to order | |
| VR890022 | Flanged ball check valve DN 300 | DN 300 | Last units |
No references match the filters.
From the blog: guides on this family
More news
23 June 2026Water hammer in irrigation networks: how to prevent it with check valves and rubber expansion jointsEvery pump stop is a hammer blow on the pipeline. Which check valve stops the water column best, where the rubber expansion joint goes and which design mistakes we see most often in control heads.
12 May 2026Digitalisation of irrigation communities: which hydraulic parts a remote-controlled control head needsThe PERTE for digitalisation of the water cycle has funded hundreds of remote-control projects in irrigated areas. Sensors and solenoid valves are the visible part; underneath, you need hydraulics that do not fail.
9 December 2025Dismantling joints: what they are for and how to size them in a valve chamberIt is the part nobody sees until a valve has to be replaced. What a dismantling joint is, where it goes, how the length is chosen and why we manufacture it in stainless steel.
Other check valves families
View the category
GA18-3Dual-plate wafer check valveWafer-type check valve, of compact, lightweight design for installation between flanges. Its dual-plate mechanism with stainless steel springs ensu…
GA18-4Dual-plate check valve PN25High-performance dual-plate check valve, designed for high-pressure systems (PN25). Its GGG-40 ductile iron body and high-quality stainless steel i…
GA18-5Swing check valveSingle-disc swing check valve in stainless steel, wafer format for mounting between flanges from DN 50 to DN 500. Rapid closure and minimal head lo…