PARTS · INJECTION
Injection Quills & Check Valves
Injection quills, back-pressure valves and injection check valves for chemical dosing into pipelines and tanks. Prevent backflow and improve dosing accuracy.
Key Specifications
| Types | Injection quill, back-pressure valve, foot valve |
| Materials | PVDF, 316 SS, PTFE |
| Connection | 1/4"–1" NPT / BSP |
| MOQ | 1 piece |
Why Buy from DOSEPARTS
- ✓ Direct replacement parts — dimensionally identical to OEM
- ✓ Factory-direct pricing with sample orders welcome
- ✓ Ships worldwide, express dispatch available
- ✓ Free parts-matching support — send us your pump model
Frequently Asked Questions
Do I need a back-pressure valve?
Yes for most installations — it keeps the discharge line pressurized and prevents siphoning, which improves dosing accuracy.
Need the Right Pump Part Fast?
Factory-direct pricing on compatible diaphragms, valve cartridges, PMK kits and liquid ends for LMI, ProMinent, SEKO, Milton Roy and Pulsafeeder pumps. Send your pump model and get a quote within 24 hours.