The all plastic casing provides a long lasting, robust and non-corrosive construction. The units have been constructed from shockproof, heat resistant white plastic, with both motor and impeller mounted within the length of the unit casing. All units are IPX4 protection and are splash proof as required by current regulations.
Mixed flow impellers shall be provided with fixed blade angles to meet the required duty. The impeller construction shall comprise of white plastic. Motors and impellers are balanced to ISO 14694 Grade G6.3.
Units are to be designed and manufactured with procedures as defined in BS EN ISO 9001:2008. All SMT units are to be tested to ISO 5801:2007 (airside performance) and BS 848 Part 2:1985 (sound performance).