SEPCO Air Seal (SAS) is an engineered pneumatic sealing system designed to seal the shafts of equipment where typical contact seals such as packing and or mechanical face seals prove to be too costly to operate and maintain
If compressed air can stop a train we can stop your sealing issues.
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Split Air Seals are made for easy installation. Shaft removal and dismantling of machinery are kept to a minimum, thus reducing downtime.
Air Seal (SAS) food grade shaft seal eliminates product loss on food industry equipment. Air Seal design constructed of FDA approved material for product applications within food processing industries.
- Maintenance free
- Wearing parts.
- Accommodate radial run out
- Axial movement
- Angular misalignment
- FDA Materials
The SAS CEMA shaft seal is a complete shaft sealing system for CEMA Screw Conveyors.
SAS CEMA is an Air Seal shaft seal design specifically for CEMA (Conveyor Equipment Manufacturing Association)
- Eliminate product loss
- Eliminate contamination
- Maintenance free
- Accommodate radial run-out
- Angular misalignment
- Features and Benefits
- Standard Dimensions
- Fits all CEMA Screw Conveyor
Standard Sizes 1.00" to 4.438"
Custom Air Seal design available
- Example Twin Screw Conveyor.
Benefits
- Efficient design minimizes air usage while maintaining internal sealing pressure profile
- Resilient to angular and parallel shaft movement
- Split seals available in most designs
- Wide range of materials available in most designs
- Requires little or no maintenance after installation
SAS air seal requires compressed air.
Compressed air supply pressure has to be slightly greater than the the system pressure.
The standard SAS is designed so the air flow in and out of the seal is biased based on system requirements, analysis reveals the consistent speed of the airflow through the throttle.
The SAS relies on engineered clearances to develop a uniform sealing pressure and velocity profile using air or gas.
The pressure profile forms a circumferential boundary layer internally that reduces the effects of shaft movement because the throttle is designed to float.
For situations in which angular misalignment may exist, the SAS are engineered to meet your specific requirements and performance expectations of the end user.
The SAS relies on engineered clearances to develop a uniform sealing pressure/velocity profile using air or gas. This eliminates low-pressure areas and mitigates the chance of product ingress into the seal
The throttle creates a uniform velocity profile. Notice the consistent ring around the center in shows the CFD image of the full air flow through the throttle.
The SAS is essentially a noncontact seal.
SAS requires no maintenance as long as air flows continuously to the seal. By design, product does not enter the seal or throttle area. This eliminates the need for maintenance.
Common Markets
- Pulp & Paper
- Food & Beverage
- Oil & Gas
- Mining Chemical
- Water & Wastewater
- Powder & Bulk Solids Handling
- Cement
Paper mill facing an ongoing problem with a leaking pulper that had significant shaft runout caused by uneven distribution when paper bales were dumped into it.
- Pulper leakage estimated product yearly loss at $100,000.
- Shaft replaced every three months.
- Eventually gearbox had to be replaced.
Problem Corrected
- SAS Air Seal solved the pulper leakage issue.
- Additionally, a true noncontact, EXP bearing isolator installed on the gearbox.
Before and After
Chocolate Mixer
- Product Waste Costs
- Daily Clean-up Costs
- Safety Costs
- Production Costs
- Maintenance Cost
Air Seal cost the customer nothing it saves them thousands every month.
Before and After
Dry powder handling machines, by their nature, are difficult to seal. Powders and bulk solids are transported and handled in many industries, including:
- Pulp and paper
- Chemical
- Pharmaceutical
- Food and beverage
Traditional methods the product contacts the sealing element and leads to accelerated wear and seal failure.
The SAS relies on engineered clearances to develop a uniform sealing pressure and velocity profile using air or gas. This eliminates low-pressure areas and mitigates the chance of product ingress into the seal.
5 minutes
Five minutes will SAVE you money!
All the applications shown the customers savings on product lose, maintenance cost, and safety concerns paid for the Air Seal in less 1 to 2 months
BENEFITS
The SAS significantly reduces operating costs , and end users save on:
- Product waste
- Labor and overtime
- Seal and other component replacements
- Downtime
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