Tiger-Vac SS-55 (TC) TE TWIN VENTURI

Both share the same chassis, the same Tilt Cart, the same filtration and the same EN 17348 LC certification -- the difference is in the venturi section. SINGLE VENTURI (part number 110278) has one 6 mm venturi nozzle, delivers 204 m3/h and requires a minimum 15 HP compressor at 5.5 bar with a 1/2" (12.7 mm) air hose. TWIN VENTURI (part number 110282) has two parallel 6 mm venturi nozzles, delivers 331 m3/h -- about 60 % more airflow -- and 5840 mmH2O vacuum, but in turn requires a minimum 30 HP compressor at 6.9 bar and a 1" (25 mm) air hose. Choose single if the compressor is limited or the task is single-operator; choose twin for high-volume recovery or several simultaneous suction points.

A minimum 30 HP (22 kW) compressor delivering 33 L/s (1980 NL/min) at 6.9 bar continuously -- roughly twice that of the single-venturi version (15 HP / 21.2 L/s). You also need a 1" (25 mm) air hose from the compressor, not 1/2" as on the single. The unit can be operated continuously as long as the compressor maintains pressure. For field work the compressor must be placed outside the ATEX zone -- a diesel or petrol compressor is itself an ignition source -- with the air hose run into the zone.

T6 is ATEX's strictest temperature class: maximum surface temperature 85 °C. T3 is 200 °C. For most fuels such as diesel or Jet A-1, T3 is sufficient because auto-ignition temperature is 210-230 °C. But for hydrogen, acetylene, and certain aerosolised aromatics (such as benzene vapours at high concentration), even 90-120 °C surface temperature can trigger ignition. T6 is also required in many newer defense specifications (NATO STANAG, US Air Force TO-0 series) where a single worst-case class is chosen for all tasks. SS-TE models are built to T6 because the pneumatic construction makes it physically impossible to exceed 85 °C.

Same chassis family, same Tilt Cart, same filtration (stainless mesh + activated carbon optional), same EN 17348 LC certification. But the motor is fundamentally different: EXP1 is single-phase TEFC electric (230V), SS is pneumatic venturi (compressed air). Choice depends on available energy and risk level: When you have 230V and T3 is sufficient -- choose EXP1 (lighter, no compressor requirement, longer hose reach via cable). When you have compressed air and T6 is required, or you work in ultra-high-risk areas (hydrogen, F-35, rocket fuel) -- choose SS. In practice, many defense units choose SS models because NATO/US Air Force specifications typically require T6.

Not directly. The SS-55 (TC) TE has a 50 mm inlet, while the optional nozzles -- crevice nozzle (381188) and the two conical nozzles (381219 and 381219D) -- have a 1.5" (38 mm) connection. To use them on the twin a 50->38 mm reduction or a reducer hose is required. Contact us and we will find the right reduction for your setup. The Transfer Lid Assembly, by contrast, is a drum solution and is independent of the inlet diameter.

Zero electrical ignition risk combined with high capacity. A pneumatic vacuum is driven exclusively by compressed air passing through venturi nozzles, creating negative pressure by aerodynamic effect -- no motor, no sparks, no hot electrical component. This qualifies the unit for T6 class (max 85 °C surface temperature), while an electric TEFC motor can only achieve T3 (200 °C). Twin-venturi adds high performance (331 m3/h) without compromising T6 safety. The downside is the compressor requirement -- minimum 30 HP and 33 L/s at 6.9 bar -- so the compressed-air supply can be the limiting factor in the field.