
Key Features
- Self-priming with 5 m suction lift – no manual priming needed
- Dry-run safe – will not be damaged by accidental empty running
- Adjustable flow and pressure via air valve for precise control
- Handles solids up to 4.5 mm and viscous fluids up to 10,000 cP
- Corrosion-resistant aluminum alloy construction with Buna-N elastomers
- No electrical power required – safe for hazardous/explosive locations
- Low maintenance – no rotating parts or shaft seals
Technical Specifications
| Specification | Value |
|---|---|
| Model | QBK-40L |
| IMPA Code | 591602 |
| Maximum Flow | 140 L/min (37 gpm) |
| Discharge Pressure | 6.9 bar (100 psi) |
| Suction Lift (dry) | 5 m (16.4 ft) |
| Maximum Particle Size | 4.5 mm (0.18 in) |
| Air Consumption | 600 L/min (21 scfm) |
| Air Pressure Range | 1–7 bar (14–100 psi) |
| Inlet/Outlet Connections | 1½" BSPT female |
| Overall Height (H) | 480 mm (18.9 in) |
| Dimensions (A x B x C) | 236 x 155 x 370 mm |
| Housing Material | Aluminum alloy (ZL104) |
| Diaphragm Material | Buna-N (Nitrile) |
| Ball Valve Material | Buna-N (Nitrile) |
| Shaft Material | Stainless steel (1Cr18Ni9Ti) |
| Weight (approx.) | 12 kg (26.5 lbs) |
Frequently Asked Questions
Can this pump handle abrasive or solid-laden fluids?
Yes, the pump can handle solids up to 4.5 mm in diameter. The diaphragm design minimizes wear from abrasives, making it suitable for slurry and sludge transfer.
Is the pump safe for use with flammable liquids?
Absolutely. Since it is pneumatically operated with no electrical components, it is inherently safe for explosive or flammable environments as per ATEX and similar standards.
What maintenance is required?
Minimal. Regularly check air filters and clean the pump after use with setting fluids. Replace diaphragms and valves periodically based on usage and fluid compatibility.
Can the pump run dry without damage?
Yes, the pump can run dry indefinitely without damage. It also features automatic shut-off if overloaded, resuming operation once normal conditions return.
Inquire About This Product
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