Rolfes Co, Company

Standard Capacities from 3,000 - 150,000 cfm Full welded carbon steel construction Flanged inlet and outlet 230/460/60/3 TEFC motor V-belt drive with 1.5 service factor Class III wheel Spherical roller bearings Safety blue belt and shaft guards Standard metal preparation Primed and...

Type "T" Thermocouples Many types of metals are used for thermocouples in various applications; however, copper and constantan are the most practical type for temperatures below 600 Degrees F. The Constantan is an alloy approximately 57% copper and 43% nickel along with the junction of copper is...

High-Pressure Centrifugal Fans Boone Aeration & Environmental high-pressure Centrifugal fans are ideal for situations involving temporary wet grain holding, deep storage, or where ever high static pressures are required. Ten gauge or heavier steel housing and non-overloading, vibration-proof...

The Low Cost Alternative For Automated Aeration Control Simple-Inexpensive-ReliableAutomatic Or Manual OperationEquilibrium Charts For Different Commodities (Mounted Inside Cover) Provides Quick ReferenceThe Standard Hour Meter RecordsThe Running TimeHigh And Low Humidistats Lets Operator Dial In...

Sizes range from 100 - 45,000 cmf 12 ga. carbon steel construction Stiffened to handle 17 120 V timer board in NEMA 4 enclosure Goyen diaphragm values Compressed air header with drain Magnehelic gauge 0-10 Flanged inlet, outlet, and body Perimeter railing Galvanized bag cages with...

Full welded carbon steel construction Flanged inlet and outlet 230/460/60/3 TEFC gear rotor Heavy duty chain drive Six vane removable motor Replaceable polymer vane tips Safety blue chain guard Standard metal preparation Primed and painted industrial white enamel Optional Slave drive kit...

Capacity of 256 bearing and belt alignment temperature sensors.The BTA system is compatible with all systems using Type "T" thermocouple sensors.Alarm points can be individually set by the operator. Two individual high-limit variable set points and one rise above ambient (delta) set point for each...

Weight 3.55 lbs RPM Rating 0 - 500 RPM Temperature range -46C to +66C / -50F to +150F Voltage Max +15 VDC Shaft Material Type 17-4 Stainless Steel Housing Material Type 6061-T6 Aluminum Sensor Type Direct Drive MS-200 RPM SENSOR Direct shaft mount sensor 60 pulses per shaft...

Sizes from 5,000 cfm to 100,000 cfm 10 ga. carbon steel construction 7 ga. tubesheet Stiffened to handle 17 Internal sweep arm cleaning mechanism Explosion proof fan and drive motors Aluminum fan wheel Magnehelic gauge 0-10 Flanged inlet, outlet, and body Galvanized bag...

Boone Aeration & Environmental offers a complete line of in-line centrifugal fans. These fans offer the centrifugal fan wheel with its high pressure capabilities, in an economical tubular housing. These fans make a good choice when more pressure is required than what an axial fan can deliver,...