Hydraulic Metering Pumps
OBL Topline LX9 API675 Hydraulic Double-Diaphragm Metering Pump
OBL Topline LX9 (X9/XS) API675 hydraulic double-diaphragm: ~0.4–3730 L/h (tables to ~4662 L/h), up to ~300 barg on XS. Lost-motion return, built-in safety/purge, rupture detection, multi-head.
Max flow
approx. 0.4 – 3730 L/h (; LP120-X9 up to approx. 4662 L/h)
Max pressure
X9 standard up to approx. 100 bar; XS to 300 barg / 4350 psi
Turndown / accuracy
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Wetted materials
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Protection
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Power
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Features
- API675 + ATEX compliant
- Hydraulic double diaphragm + rupture detect
- X9 standard & XS to 300 bar
- LY/LK/LP-X9 frames wide flow span
- Multi-head with individual stroke adjust
Specifications
| Flow range | approx. 0.4 – 3730 L/h (; LP120-X9 up to approx. 4662 L/h) |
| Max pressure | X9 standard up to approx. 100 bar; XS to 300 barg / 4350 psi |
| Drive | API675 hydraulic double 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 | |
| LYC010-X9 | 2.14 L/h | 100 bar | |
| LY010-X9 | 7 L/h | 100 bar | |
| LY015-X9 | 18.5 L/h | 100 bar | |
| LY020-X9 | 39 L/h | 100 bar | |
| LY025-X9 | 52 L/h | 60 bar | |
| LY030-X9 | 78 L/h | 40 bar | |
| LY040-X9 | 135 L/h | 22 bar | |
| LY050-X9 | 215 L/h | 14 bar | |
| LK020-X9 | 64 L/h | 100 bar | |
| LK025-X9 | 100 L/h | 70 bar | |
| LK030-X9 | 150 L/h | 50 bar | |
| LK040-X9 | 250 L/h | 25 bar | |
| LK050-X9 | 400 L/h | 25 bar | |
| LK065-X9 | 680 L/h | 15 bar | |
| LK080-X9 | 1050 L/h | 10 bar | |
| LP030-X9 | 293 L/h | 100 bar | |
| LP040-X9 | 520 L/h | 60 bar | |
| LP050-X9 | 820 L/h | 40 bar | |
| LP065-X9 | 1400 L/h | 25 bar | |
| LP080-X9 | 2075 L/h | 12 bar | |
| LP100-X9 | 3237.5 L/h | 12 bar | |
| LP120-X9 | 4662.5 L/h | 10 bar | |
| LK010-XS | 12 L/h | 300 bar | |
| LK015-XS | 26.5 L/h | 300 bar | |
| LK020-XS | 62.7 L/h | 170 bar | |
| LP020-XS | 100 L/h | 300 bar | |
| LP025-XS | 181 L/h | 260 bar | |
| LP030-XS | 287.5 L/h | 190 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.