Multistage Blowers
Multistage Blowers deliver up to 150,000 SCFM of uncontaminated gas flow at up to 30 PSIG pressure, and from 20” to 0” Hg vacuum . Typical applications include air conveying, industrial & municipal water waste, water aeration, petroleum and chemical refineries, flotation, central vacuum systems, cell aeration, sulfur recovery, fluidized bed units, gas boosters for carbon dioxide, nitrogen, propane, natural gas, steam compressors for vapor recompression systems, electroplating, agitation of tanks, cement pneumatic conveying, landfill gas recovery, leaching process, soil remediation, paper transport, scrap collection, powder recovery, and all applications requiring medium pressure, or vacuum at relatively large volume of flow.
Multistage Blowers are available with cast iron, or fabricated steel casing enclosing cast aluminum, fabricated aluminum, or stainless steel rotors. ANSI 125/150 flange connections, as well as metric standard flange connections are standard. Shaft sealing is provided by labyrinth seal, mechanical seal, purgeable nitrogen, or other gas seal, gas tight seal, or by sealed bearing compartments.
Multistage Blower Packages are supplied on unitary base of standard or isolation type with RIS, or spring vibration isolators. Power transmission is implemented by V-Belt Drives complete with V-belts, adjustable or constant speed sheaves and pulleys, bushings, and motor slide bases; or by direct drive coupling. Motors are of High Efficiency design. OSHA Belt Guard and OSHA Coupling Guard are standard.
Expansion Joints, Flexible Connectors and Compression Couplings isolate Multistage Blower to allow for thermal expansion and mis-alignment of piping.
Pressure / Vacuum Relief Safety Valves are of spring loaded type type, or weight type. They set-up point of operation and bleed-off to prevent over-pressurization, or relief vacuum.
Inline Check Valves direct airflow or vacuum in one direction only.
Pressure/Vacuum Controls include differential pressure gauge up to 15 PSIG, vacuum gauge from 30” to 0” Hg, temperature gauge, gauge snubber to reduce pressure pulsation, and .25” pet-cock valve to isolate the gauge.
Blower Silencers are offered as inlet and discharge silencers with sound absorbing elements. Sound Enclosures are custom made based on application requirements.
Inlet Filters are offered with wire-mesh oil wetted (multi-wash), high efficiency ultra-synthetic (polyester, washable), or paper (thrown away)media. Controls included Differential Filter Pressure Gauge used as Filter Restriction Indicator. Filter casing is available as open flange design, hooded design, or combined filter-silencer assembly. In-line filters are custom.
Controls and drives: variable frequency drives (VFD), motor starters, are available in NEMA 1, NEMA 3R, NEMA 4 enclosure, as well as for x-proof applications.