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Overpressure and Vacuum Flap Type SDAK for highest silo safety through optimum pressure vacuum equalization
Areas of application
The overpressure and vacuum flap TYPE SDAK is a safety organ for silos which are filled pneumatically. Overpressure as well as vacuum - vacuum arises from exhaust fans or through rat hole collapses - can be equalized because of the combined design of the pressure flaps.
The optimum protection of the silo is guaranteed through the maintenance-free construction of the SDAK flaps.
Operation
The weighted, ball bearing supported flaps are opened through the outside, respectively inside pressure of the silos. In the unopened posiiton the rubber-coated flaps are dust tight. With a negative pressure of more than 5 mbar the negative pressure flap is opened through the outside pressure. Outside air can stream into the silo for pressure equalization. When overpressure occurs in the silo interior, the flap, with an adjustable weight, opens. The excessive pressure can be neutralized via the flap opening. The special design guarantees that the actuating pressure does not increase excessively and the outlet opening can respond fully.
Material/design
As construction material steel and various stainless steels are available.
Painting: Hammertone, silver grey
Standard sizes: 150 and 300 mm diameter
OPTION: As an option the flap can be fitted with proximity switches for signalizing. For use on silos and containers in enclosed halls the flap can be supplied with an exhaust air connection pipe so that the air escaping from the silo can be led away through pipelines.
Advantages
- Practically maintenance-free
- All bearings long life lubricated
- Outlet opening fully effective due to weighted flap discs
- Overpressure range steplessly adjustable
- Low Pressure Flaps | Ventilation Devices
The President and the current owner of the company creates a private enterprise offering services in manufacturing of steel constructions
1980
The beginning of a business cooperation with Zakady Aparatury Technicznej (Technical Apparatus Plant) LUMEL in Zielona Góra. Production of measuring apparatus packings.
1983
Entering into cooperative relations with FSO in Warsaw, POLMO Branch in Kożuchów for delivering of oil measuring device packing for Polonez as well as other personal cars.
1985
Developing cooperation with LUMEL in machining of metal silumin casts.
1992
Entering into cooperative relations with branches of ZWR ( Copper Beneficiation Plant) in KGHM Polska Miedź S.A. for deliveries of metal and rubber parts for machines and other instruments.
1998
Starting cooperation with end users, buyers and receivers of rubber mills linings.
2000
Changing the seat of the company and enlarging production assortment
2000
Achieving the Quality Management System Certificate ISO 9001:2001
2006
Achieving the Certificate of Job-control Statement Confirmation for the system making it possible to mark the armature with CE sign
- Low Pressure Flaps
Customers do not simply buy air conditioning/ventilation technology off the shelf from us. In addition to the products of numerous manufacturers of ventilation assemblies and devices, we also supply fans from our own production. Our company specializes in the design and manufacture of railway-compatible blowers for mobile use in rail vehicles.
According to individual customer requirements, we develop and manufacture customized cooling fans that are adapted to the special features of railroad technology and meet the requirements of high-performance motors and the increasingly compact electronics in rail vehicles, even under extreme conditions.
In addition, we have succeeded in opening up various areas of application in energy technology for the use of environmentally friendly, performance-adapted fans for cooling generators, stationary converters and large motors, which have already proven their worth in switchgear and wind power plants. We also design and realize custom-made products according to your special requirements.
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