High-pressure performance for the toughest industrial environments.
The Topline series is OBL’s premium metering pump family, designed for operations that demand exceptional accuracy, long-term durability, and compliance with strict industry standards such as API 675. Built with reinforced materials, advanced hydraulic technology, and precision plunger mechanisms, Topline pumps deliver stable dosing under extreme pressures and aggressive chemical conditions.
Ideal for petrochemical plants, power generation, water treatment, and any application where safety, reliability, and precision are non-negotiable.
Key Strengths
- API 675 compliant — Meets global standards for accuracy, linearity, repeatability, and continuous-duty performance in critical dosing installations.
- High-pressure, heavy-duty design — Topline pumps operate reliably under high discharge pressures and intense mechanical loads.
- Engineered for harsh chemicals — Constructed with corrosion-resistant materials to handle aggressive and hazardous fluids safely.
- Hydraulic diaphragm + plunger technology — Ensures smooth dosing, minimal pulsation, and long diaphragm lifespan.
- Long-term reliability in continuous operations — Designed for 24/7 industrial duty with low maintenance requirements and high component durability.
How Topline Works
- High-pressure actuation — Hydraulic or plunger-driven mechanisms deliver stable dosing even in extreme conditions.
- Constant flow control — Stroke adjustment enables precise flow regulation with top-tier linearity and repeatability.
- Built-in safety systems — Hydraulic diaphragm models include automatic overload protection and pressure relief.
- Optimized for long-term operation — Topline pumps maintain consistent performance through extended duty cycles with minimal maintenance.
