IRepair of industrial radial ventilators, fan wheels, blower impellers, stainless steel ventilators, combustion pressure blowers, high temperature industrial ventilators, material handling blower fnas, paddle radial ventilators / fans, high temperature oven ventilators, compact blowers, blowoff fans blowers, blower blade impellers, SST blowers & fans, wall exhaust blowers, duct ventilators, roof / wall supply ventilators, industrial high pressure ventilators, stainless ventilators, explosion-proof fans, replacement ventilators. ndustrial process and OEM heat exchangers - steel / copper / aluminum industrial finned coils for process heating and cooling. Quick ship of large industrial steam / hot water / cold water heating and cooling finned coils / heat exchangers.
industrial heat exchangers

 

 

 
HEAT EXCHANGERS
 

Steam Coils

Our standard steam (STD) and steam distributing (SD) coil models are used in a variety of heating and drying applications. Our standard steam coil is designed to handle large amounts of steam and provide quick condensate removal. Our steam distributing coil is ideal to handle steam that is being modulated and/or if the air entering the coil is below freezing.

 

These custom, heavy-duty designs are rated to 300 PSIG or higher and are made of cupro-nickel, carbon steel or stainless steel construction. We can provide 5/8" OD or 1" OD tubes, tube wall thickness of up to .109" and fin thickness up to .020" on certain materials. These coils are designed to accommodate thermal expansion and contraction of the coil from high temperature and pressure applications and can be built for various mounting and connection orientations.

 

 

Chilled Water / Glycol / Brine
/ Hot Water / Thermal Oil Coils

We can design and manufacture coils that are ideal for a wide variety of basic, custom and heavy-duty industrial applications to cool air or gas for comfort, dehumidification, dry cooling, solvent removal and other cooling applications. In addition, we can also produce coils that are perfect for accommodating the rigors of higher temperature applications such as preheating, drying, heat treatment, heat recovery and/or removal.

 

 
We have been a custom coil manufacturer for over 70 years and have built a solid reputation by delivering precisely what our customers' applications require...no matter how special. We provide intercoolers, desuperheaters, heat recovery, cyrogenic, multi-staged, cascade, flooded, direct expansion and many other types of special coils. We combine a wide variety of materials, fin and tube patterns and coil styles to design and manufacture products for many unique and difficult applications.

 

 
We can design and build multiple coils in the same casing, use exotic materials and fabricate unusual header and connection arrangements. In addition, our engineers have the expertise to design coils for difficult environments including heat recovery systems that use hot, corrosive exhaust gases as the heat source. Finally, as with our refrigerant product line, we can work with many of the new and special refrigerants such as ammonia and R-123

 

 

Like our evaporator product line, our condenser coils have been designed to accommodate many of the new and special refrigerants on the market including ammonia and R-123. In addition, we have increased the durability of our condenser coils against thermal expansion, high operating pressures, vibration and being mounted outdoors.

 

 
Evaporators / Direct Expansion (DX) Coils

Like our condenser product line, our condenser coils have been designed to accommodate many of the new and special refrigerants on the market including ammonia and R-123. Our coils are available for a wide range of applications from comfort cooling and dehumidification to ultra-low temperature refrigeration, freezing and solvent vapor stripping.

Our evaporators are "Custom to the Core" just like all our products. We can provide numerous optional fin surfaces and tube sizes to minimize frost and refrigerant charge and to save space while reducing weight. We also have the capability of manufacturing 100% stainless steel or aluminum coils in order to provide increased durability against the harsh cleaning requirements of food and clean room processes.

 

 
 
 

 

 

 

 

 

 

 

 
OEM coil
 
OEM finned coil
 
finned water coil
 
finned steam coil
 
industrial process coil
 
 
 
industrial process heat exchanger
 
industrial cooilng coil
 









Negative Air Pressure in industrial manufacturing facilities can create problems such as:

* Exhaust fans losing performance, as the building pressure becomes negative.

* Pilot light outages and exhaust system failure on natural draft gas equipment.

* Cold air drafts and infiltration of dirt and contamination from outside.

* Difficulty opening or closing exterior doors.

Buffalo Blower Co. has re-designed its Make-Up Air Units for larger industrial plants ventilation requirements.

Buffalo Blower air-handling units (AHU) can be used effectively for negative pressure control at manufacturing facilities:

Space Pressure Control is used to minimize and control the exchange of air between the building and the outside environment or from one building area to another. This may be accomplished in three ways:

- Constant air supply with variable-speed exhaust;

- Variable air supply with constant-speed exhaust;

- Variable Return-Air.

Constant air supply with variable-speed exhaust is recommended where a hot or contaminated environment must be ventilated while maintaining room pressure. Unit may be interlocked to that it only operates with the exhaust system.

Variable Air Supply with constant-speed exhaust may be preferred where fume exhausters or fume hoods are used to provide critical ventilation of contaminants from a “clean” environment while make-up air is used to maintain a positive pressure to prevent infiltration.

In either case, when the system is enabled, a pressure sensor in the building space monitors room pressure. When a high or low pressure reading is detected, the air supply or exhaust is adjusted to compensate.

When controlling a Variable Air Supply unit (or VAV Unit - Variable Air Volume), two methods are available:

- Damper Control - Unit discharge damper is adjusted using the damper motor.

- VFD (Variable Frequency Drive) – Controller adjusts the speed of the blower motor Discharge Damper adjustment is an older method of controlling discharge air volume. Its main advantage is that it only requires positional control of a small discharge damper motor. The major disadvantage is the wasted Horsepower of the blower motor at lower delivery rates.

In recent years, fan speed control using VFDs has become economical. In this application, a standard energy efficient motor is usually adequate down to 75% of normal motor speeds. For a fan speed down to 25%, a premium efficiency motor is required. Inverter duty motors are not usually necessary since at 25% of normal fan speed, air delivery is minimal.

Variable Frequency Drives are also programmable. They are used to provide soft starts and to ramp motor speed up or down in response to signals from the control system.

Finally, in a generally “clean” environment without a critical need to remove large quantities of contaminants, a simple solution to building pressurization is a Return Air Unit with the return air damper motor controlled by building a pressure sensor. When building pressure increases, more inside air is returned through the unit, relieving the pressure. When building pressure falls, more outside air is supplied to the building in order to “pump up the pressure”. Precise control of building pressure by a single piece of equipment can thus be achieved.