NETZSCH TORNADO T1 Pumps
Spare Parts for TORNADO T1 Rotary Lobe Pumps
Product Summary
Genuine and compatible spare parts for the NETZSCH TORNADO® T1 rotary lobe pump, used across Australia for sewage and sludge transfer, biogas plants, membrane filtration, food processing and chemical duties. Every T1 from the compact MB to the 1,400 m³/h XXLB shares the same build (lobes running between replaceable wear plates, a synchronising timing gearbox kept apart from the pump chamber, and a front cover that opens without disturbing the pipework), so tick what you need and we’ll match the parts to your nameplate (e.g. T1 XLB-3F).
Spare Parts List
✓ Tick the parts you need. TORNADO T1 wear parts are matched to pump size, lobe profile and material, so your nameplate model and serial number are all we need to get them right. Not sure which items? Add a photo of the nameplate and we’ll work out the parts for you.
| Select | Wear / Service Item | Function & when to replace |
|---|---|---|
| Common Service Kits | ||
| Rotary Lobes (Rotors) | The pair of bi-lobe straight or tri-/four-lobe helical rotors that do the pumping. Replace when worn edges let flow drop away at the same speed, or if they are scored or chipped by solids. | |
| Wear Plates (Front & Rear) | Replaceable plates either side of the lobes that take the wear instead of the housing. Renew with the lobes, or whenever they show grooving that opens up the clearances. | |
| Radial Wear Plates / Liners | Replaceable radial wear protection around the lobe path, fitted for abrasive media so the pump housing itself never needs replacing. Change when worn through or deeply scored. | |
| Mechanical Seal | Rotation-independent shaft seal, single or double with quench or flush. Replace at the first sign of leakage at the seal or after any dry run or seal flush failure. | |
| O-Ring & Gasket Set | Front cover seal, wear plate and seal O-rings in the elastomer to suit your product. Renew whenever the pump head is opened. | |
| Other Core Parts | ||
| Front Cover | The removable cover that gives access to the lobes, wear plates and seals without disconnecting the pipework. Replace if cracked, eroded or no longer sealing. | |
| Timing Gears | The gears in the patented synchronous gearbox that keep the two lobes in phase. Replace if the lobes start to touch, knock or need constant re-timing. | |
| Bearings | Shaft bearings in the gearbox that hold the lobe clearances. Replace if noisy, running hot, or if shaft play lets the lobes contact the wear plates. | |
| Shafts | Drive and driven shafts carrying the lobes and timing gears. Replace if worn at the seal or lobe seats, or bent after a solids strike. | |
| Gearbox Lip Seals & Oil | Lip seals that keep oil in the timing gearbox behind the GSS separation, plus the correct gear oil. Replace at service or if oil weeps into the separation chamber. | |
| Pump Housing | The one-piece pump housing with straight, gooseneck or 90° connections. Rarely needed when wear plates have protected it. | |
| Drive Motor / Gear Motor | Motor or geared motor matched to your kW, speed and mounting, with variable speed options. | |
| Complete Replacement Pump | When a rebuild doesn’t stack up, we quote a like-for-like TORNADO T1 from the model on your nameplate. | |
How we confirm the exact part: TORNADO T1 parts depend on pump size, lobe type (bi-, tri- or four-lobe), wear plate and lobe material, and seal arrangement. Your nameplate carries the model (e.g. T1 XLB-3F) and the serial number NETZSCH uses to trace the original build. Tick the items above and add a nameplate photo, and we’ll confirm the correct parts for your exact pump.
Models
Spare parts are available for every TORNADO T1 size; the letters give the frame (MB, XB, XLB, XXLB) and the number the displacement, with “F” marking the current Generation F and “/2” the higher-pressure XLB versions.
Models & Key Specifications
| Frame | Sizes | Capacity (m³/h) | Max. pressure (bar) | Max. speed (rpm) |
|---|---|---|---|---|
| MB | MB-1F, MB-2F | 3–32 | 8–10 (by size) | 800 |
| XB | XB-1F to XB-4F | 7–126 | 5–8 (by size) | 550 |
| XLB | XLB-1F to XLB-5F, XLB-1/2 to XLB-8/2 | 15–905 | 3–10 (by size) | 500–550 |
| XXLB | XXLB-2F, XXLB-4F, XXLB-6F | 100–1,400 | 4–12 (by size) | 550–600 |
All sizes: self-priming (suction lift up to 8.5 m), viscosities from 1 to 50,000 cP, reversible flow, liquid temperature up to 90–100 °C depending on build, bi-lobe straight or tri-/four-lobe helical rotors, GSS gearbox separation, ATEX versions available.
Troubleshooting
Flow drops at the same speed
Likely cause: worn lobes, wear plates or radial wear plates opening up the clearances and increasing slip, especially on abrasive or thin products. Action: check output against speed; open the front cover and measure lobe-to-plate clearances; replace the lobes and wear plates together if worn, and fit radial wear plates on abrasive duties.
Knocking, or lobes touching the plates
Likely cause: worn timing gears or bearings letting the lobes drift out of phase, incorrect lobe setting after a rebuild, or a hard object in the pump chamber. Action: isolate and inspect the pump chamber; check shaft play and gear backlash; replace the timing gears or bearings and re-set the lobes to NETZSCH clearances.
Leaking at the shaft seal
Likely cause: worn or cracked seal faces from dry running, abrasives, or a quench or flush line that has stopped working. Action: replace the mechanical seal and its O-rings; check the quench or flush supply. Seal flush connections are easy to reach on the T1 and should be kept connected on difficult products.
Oil leaking or product in the gearbox
Likely cause: failed gearbox lip seals, or a seal failure that has allowed product into the GSS separation chamber. Action: check the separation chamber between the seal and gearbox; replace the lip seals and the mechanical seal; drain and refill the gearbox with clean oil.
Pump will not prime or loses suction
Likely cause: an air leak in the suction line, worn clearances, or a dry pump chamber with too much suction lift. Action: check suction joints and valves; fill the pump chamber before start-up or fit a gooseneck (liquid trap) connection; replace worn lobes and wear plates if clearances are open.
Motor overloads or relief valve lifts
Likely cause: discharge pressure above the size rating (a closed valve or blockage), higher product viscosity than designed, or running faster than needed. Action: check the discharge line and valves; confirm pressure and viscosity suit the model; reduce speed if possible. Never run a positive displacement pump against a closed valve.
Noise or vibration
Likely cause: cavitation from too little suction pressure, worn bearings, or a misaligned or loose drive. Action: check suction conditions and reduce speed on viscous products; check bearings and coupling alignment; replace bearings if rough or noisy.
Request for Quotation
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Not sure which parts? Just send a photo of the nameplate or part below.