Washguard®
II Motors - Three Phase, Severe Duty, Stainless Frame
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TENV
• C FACE LESS BASE
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TENV
• CFACE WITH BASE
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CHEMICAL
RESISTANCE
RATING CHART |
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LEESON Severe Duty, stainless frame, WASHGUARD® II motors are designed for superior extended service in severe environments. Typical applications include food processing areas requiring frequent sanitation procedures using high pressure cleaning with concentrated caustic solutions, areas of high humidity and in chemical environments.
Mechanical Protection
Features
These motors have an entirely paint free exterior with 300 series stainless
steel motor body, conduit box lid, shaft extension, hardware, fasteners
and an etched motor data plate.
To enhance chemical and corrosion resistance, all surfaces of the endbells
and conduit box are processed using a U.S. Department of Agriculture approved
technique. This proprietary process has been tested and qualified for
more than 2,500 hours of salt spray endurance for external surfaces, and
1,000 hours for internal surfaces. This process has proven successful
in food washdown applications and has shown excellent corrosion resistance.
Shaft seals,
slingers and one-way stainless steel drains retard entrance of contaminants
and water into the motor. Multiple, repositional drains provided for all
angle mounting, release any water that does enter the motor from hose
downs or condensation. Chemically resistant, tough nitrile gaskets and
a threaded entrance for power connection also restrict entrace to the
motor's interior. Nylon gaskets are used to seal bolt heads.
Bearings used are double sealed and prelubricated with moisture resistant
Shell Dolium R high temperature lubricant.
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Electrical Performance
and Protection Features
Efficiencies meet EPACT mandates for covered motors when tested without
shaft seals. High temperature, moisture resistant IRIS insulation system
assures long life on inverter service. Windings are immersed and cured
in polyester insulating compound.
Standards and
Approvals
UL component recognized, file number E57948, guide number PRGY2. Energy
efficiency ratings are verified by an independent testing laboratory.
CSA Energy Efficiency Verification Program, report number EEV 78720-1.
Construction is CSA Certified for safety report number LR33543.
Washguard® II motors are certified to the Baking Industry Sanitation Standard #29 and listed under BISSC authorization number 769.
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LEESON's Inverter
Rated Insulation system (IRIS™)
provides superior protection against voltage spikes induced
by variable frequency drives. This total insulation system protects
better than spike-resistant magnet wire alone. Specially formed phase
insulation, cushioned and sleeved connections (from the leads all the
way into the turns), and deep-penetrating, non-hygroscopic, high temperature
varnish are just a few features contributing to extra protection. All
this plus second generation spike-resistant magnet wire. The IRIS™
total insulation system is standard at no extra cost in all LEESON
stock NEMA three-phase motors, 1 HP and larger.
CHEMICAL RESISTANCE
RATING CHART
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CHEMICAL
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CONCENTRATION
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COMPONENT-RESISTANCE
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STAINLESS
STEEL PARTS |
ENDBELLS
&
CONDUIT BOX |
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| WATER: | |||
| De-Ionized Boiling |
100%
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Excellent
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Excellent
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| Salt (Immersed) |
30%
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Excellent
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Excellent
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| Salt (Spray) |
5%
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Excellent
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Excellent
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| Tap - 250°F/120°C @ 10,000 PSI |
100%
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Excellent
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Excellent
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| ACIDS: | |||
| Hydrochloric |
35%
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Poor
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Very
Good
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| Sulfuric |
25%
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Poor
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Excellent
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| Nitric |
35%
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Excellent
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Good
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| Picric |
Saturated
Solution
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Excellent
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Very
Good
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| BASE: | |||
| Caustic |
100%
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Excellent
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Excellent
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| Caustic |
12.5
pH
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Excellent
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Excellent
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| Caustic - 125°F/50°C |
9.5
pH
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Excellent
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Excellent
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| SOLVENTS: |
--
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Excellent
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Excellent
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