Tiger-Vac CD-36L EX DT (MRP) ULPA WITH SS CART 2D

The hardware is practically identical (same chassis, filters, tank, cleaning system, dimensions). The difference lies in the scope of ATEX certification. The 2D variant (112157B1-SS / B3-SS) is certified II 2D for pure dust environments in external Zone 21 without internal Zone 20 risk -- i.e. the interior of the vacuum is not certified to contain explosive atmospheres for extended periods. The 1/2GD variant (112160B1-SS / B3-SS) is certified II 1/2GD and covers both internal Zone 0/20 and external Zone 1/21 for gas and dust simultaneously -- suited where the process itself generates an explosive atmosphere inside the vacuum and the surrounding environment may contain both gas and dust. Rule of thumb: if you have process equipment (reactor, mixer) that the vacuum is tightly coupled to and which itself holds Zone 0/20 internally, choose 1/2GD. If you have pure Zone 21 dust environments (pharma tablet production, food processing without gas risk), 2D is fully sufficient and less expensive.

MRP uses a static-dissipative aluminized spun bond cartridge (214181A, 40 cm x 9.2 cm) as the main filter. When vacuum drops or after a shift the operator activates a lever on the side of the filter housing that briefly reverses airflow through the cartridge. This "reverse purge" shakes the dust cake loose and it falls into the detachable 36 L tank. Benefits: no need to open the machine for cleaning, no electronic valves requiring separate certification, and significantly longer intervals between filter changes. Note that MRP only cleans the reverse-purge cartridge -- the downstream ULPA U15 final filter is not cleaned and must be replaced when restricted (typically annually or by vacuum monitoring).

Three-phase 400 V delivers the same performance (212 m3/h / 2540 mmH2O) at lower current draw (3.6 A versus 12.3 A on single-phase). This gives lower motor heating, less wear, and smaller cable sizing. For continuous operation three-phase is usually the right choice when 400 V supply is available -- which is standard in most industrial sites. Single-phase 230 V is offered as an option where only household or service connections are available (e.g. temporary setups or service activities). Note: on the 2D version the single-phase variant has the same rated power (1.5 kW) as three-phase. On the 1/2GD variant three-phase is 2.2 kW standard while single-phase is only 1.5 kW -- so there is a real performance difference on the 1/2GD version.

HEPA H14 (EN 1822) filters 99.995 % at MPPS (Most Penetrating Particle Size, approx. 0.12-0.3 µm) -- the standard requirement for pharmaceutical and laboratory applications. ULPA U15 is one step up: 99.999 % at MPPS and 99.9995 % at 0.18 µm (IEST-RP-CC001). The difference is only a fivefold higher retention on paper (99.995 % vs 99.999 % = about 1000 particles vs 200 particles per million getting through), but in ISO Class 4 cleanrooms (former Class 10) the exhaust requirement is so strict that U15 is the only practical solution -- the exhaust must not itself add particles to the room. For ordinary production rooms (not cleanrooms) H14 usually provides ample safety at lower filter replacement cost. Choose U15 if you operate in cleanrooms, handle particularly toxic or carcinogenic active substances, or if your quality system mandates it.

No. The CD-36L EX DT (MRP) ULPA WITH SS CART 2D is dry-only -- EN 17348 DT. If you need wet/dry in the same II 2D class a WD model must be specified. Contact us for advice on ATEX wet/dry in Zone 21.

Standard delivery includes: reverse-purge cartridge (214181A), ULPA U15 filter (211027), RE muffler in stainless steel with sound insulation (214735), ground-continuity multimeter (211065B) to verify the discharge path, and the SS304 cart itself with conductive wheels. Suction hose and tools are options and must be selected by application: we recommend either Ø38 mm SD accessories (static-dissipative, for ordinary dust) or Ø50 mm explosion-proof (for conductive, metallic or pyrotechnic dust). Further options: skirt for the cartridge (214177), conductive poly-liner with clip for safe disposal, and extra recovery tank for downtime-free changeover.