Hydraulic Metering Pumps
OBL Topline XL API675 Hydraulic Diaphragm Metering Pump
OBL Topline XL API675 hydraulic diaphragm: ~63–1500 L/h, relief up to ~40 barg. Built-in safety/purge valves, mechanical replenishing hydraulics, diaphragm rupture detection.
Max flow
63 – 1500 L/h
Max pressure
up to approx. 40 barg / 290 psi (depends on material A/U/S)
Turndown / accuracy
—
Wetted materials
—
Protection
—
Power
—
Features
- API675 + ATEX compliant
- Built-in safety/purge/replenishing
- Diaphragm rupture detector standard
- XLB/XLC frames, multi-head capable
- Micrometric knob; optional actuators
Specifications
| Flow range | 63 – 1500 L/h |
| Max pressure | up to approx. 40 barg / 290 psi (depends on material A/U/S) |
| Drive | API675 hydraulic diaphragm |
| Safety | built-in relief valve + diaphragm rupture detection |
| Brand | OBL Topline（Alfa Valvole） |
Applications
Materials & media
Ask for wetted-parts details or check the brochure.
Common chemicals: NaOCl, acids, alkalis, polymers — confirm compatibility when inquiring.
Controls & communication
Control options are listed in notes or confirmed on inquiry.
Models & specs
| Model | Flow | Pressure | |
| XLB 15.50 | 63 L/h | 40 bar | |
| XLB 25.50 | 430 L/h | 40 bar | |
| XLC 069 | 1500 L/h | 20 bar |
Dimensions & installation
Dimensional drawings available on request (CAD / PDF).
Downloads
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Need help selecting?
Share duty (flow, pressure, media, controls) — we reply within 1 business day.