Tri-Mer - Exhaust Blowers

Scope

Tri-Mer Corporation shall furnish exhaust blower(s) with auxiliaries and options described. Each exhaust blower includes but is not limited to the following:

• Housing and internals necessary to provide adequate chemical resistance and flow to achieve performance.
• Frame coated to resist specific chemicals as noted in process description.
• TEFC motors are standard.
• Impeller material is specified based on airstream components; the most common choices are 316L SS and FRP-coded carbon steel.

Exhaust Blowers Design

• Exhaust blower housings are manufactured of PVC or Polypropylene. Vendor will select the most appropriate material for the application.
• Testing is in accordance with AMCA standards.
• Bearings shall be visible and accessible for inspection and maintenance. Bearing life shall have a minimum of 20,000 hours at a L10 rating.
• The blower motor shall be designed for a static pressure capability of the specified pressure drop.
• The sound levels generated by the Vendor furnished equipment during normal operation shall not exceed 85 dBA-weighted, slow response, under free field condition, at a horizontal distance of 10 feet from the surface of sound generation.
• Vendor shall provide electric motor and drives for each unit. Vendor shall be responsible for the selection of the motor characteristics and the motor mounting.
• Specially designed shaft seals shall be provided with the blower, assuring no internal liquors or air stream to be in contact with the fan shaft.
• An access port shall be provided on the housing to allow for impeller inspection.
• Impeller construction shall be of an appropriate material designed to withstand attack of contaminants in the air-stream.
• Fan impeller wheels shall be a minimum of Class II, with Class III and Class IV available.
• All equipment manufactured by Tri-Mer Corporation is warranted under the standard Tri-Mer Corporation one-year warranty. All purchased components are warranted under the respective manufacturer warranty.

Supplied Components

Standard purchased components furnished on Tri-Mer Corporation exhaust blowers are as follows:

• Browning or equal drive package
• Fan Base epoxy-paint black
• Bolted inspection door
• Drain at low point in housing
• Flanged outlet
• Fan with standard efficiency TEFC motor
• Polypropylene or PVC shaft and bearing guard

Components Supplied by End User

• Tie downs, guy wires, anchor bolts and foundations
• Field assembly
• Field wiring
• Drain piping
• Mating flanges to customer connections, hardware and gaskets
• Connecting duct from process (see options)
• Heat tracing and insulation

Options

• Motor weather cover
• Disconnect
• Isolators
• Flex connectors
• Exhaust stack
• Backdraft dampers