WANGEN Twin NG sizing basics: what to know before you quote a sanitary twin screw pump
The fastest way to get a useful WANGEN Twin NG recommendation is not to start with a model number. Start with the product, the duty point, the cleaning requirement, and the reason the current pump or layout is not ideal.
The Twin NG range includes multiple model sizes and can support demanding sanitary product-transfer and CIP applications. Maximum catalog values such as flow and pressure are application-dependent, so selection still has to be tied to the actual fluid and system. In other words: the pump family matters, but the duty point decides.
The five inputs that matter first
Seal and elastomer selection is not a footnote
Seal plan and elastomer compatibility can decide uptime. A product with heat, solvents, caustic cleaning, low lubricity, sugar, fat, abrasives, or solids may require a different seal strategy than a clean, lubricating product. Use Triplex’s chemical compatibility guide as a starting point, then confirm the final selection against the actual product and cleaning chemistry.
When VarioTwin enters the conversation
Some high-viscosity or non-flowable products do not naturally present themselves to the pump inlet. In those cases, the question is not only “which pump?” but “how do we feed the pump?” WANGEN VarioTwin is relevant when the product needs a controlled feed mechanism rather than gravity or simple suction alone.
Do not skip suction conditions
Many pump problems are inlet problems wearing a pump disguise. Confirm tank level, inlet line size, pipe length, fittings, product temperature, vapor pressure, entrained air, and whether the pump is expected to self-prime. The Triplex friction loss calculator can help frame line-loss questions before a quote request becomes guesswork.
Where to go from here
If you are comparing pump types, start with the pump overview. If you already know the application belongs in twin screw territory, review the twin screw overview. If WANGEN is the target platform, use the WANGEN Twin NG sanitary twin screw pump page for model range, product-transfer/CIP advantages, service features, videos, and downloadable resources.
WANGEN Twin NG sizing FAQs
What is the first number Triplex needs for WANGEN Twin NG sizing?
Flow rate is the obvious first number, but it is not enough. Triplex also needs viscosity at pumping temperature, differential pressure, suction conditions, product characteristics, seal expectations, and CIP requirements.
Can Triplex size from an existing pump model?
An existing pump model helps, but it should not be the only data point. The better question is what the current pump is doing well, where it is failing, and whether the process duty has changed.
When should I ask about VarioTwin?
Ask about VarioTwin when the product is extremely viscous, dense, sticky, or not naturally flowable into the pump inlet. Feeding the pump consistently may be the real sizing challenge.
Have a WANGEN Twin NG application to size?
Send Triplex the product data and duty point. We will help confirm whether WANGEN Twin NG, VarioTwin, or another sanitary pump platform is the right fit.
