1. Use and application range
SKA series vacuum pump is suitable for removing gas and water vapor, suction pressure reaches 33mbar Absolute pressure (97% vacuum) When the vacuum pump in the suction pressure below 80mbar long-term work, should be connected to the protection of the pump to protect the pump For protection, with air jets (see attached table) Suction pressure up to 10 mbar, ejector can be mounted directly on the vacuum pump. Used as a compressor, the pressure up to 0.26MPa (absolute pressure).
Water ring vacuum pumps and compressors are widely used in petrochemical, pharmaceutical, food, sugar industry and other fields, as in the process of work, the gas compression process is isothermal, so in the compression and pumping flammable gas, Not prone to danger, its application is more extensive.
2. Structure and characteristics
Pump coaxial coaxial design, space-saving, easy to install;
The mechanical seal as a standard configuration, eliminating the leak, easy maintenance;
Smooth operation, the noise can be as low as 62 dB;
A uniform corrosion-resistant design, bronze impeller to improve the corrosion resistance of the pump, stainless steel is more suitable for more demanding applications;
The unique, flexible vent design eliminates over-compression and ensures SKA is the most efficient within its performance envelope.
Performance curve
4. Selection example
â‘ design point parameters
Inspiration volume V = 100m3 / h
Suction pressure P1 = 40 mbar
â‘¡ other parameters with the standard state (see note)
Select the curve closest to Design Point 1
Note: This performance curve is obtained with saturated air at 20 ° C, working fluid temperature 15 ° C and discharge pressure 1013 bar. Performance allowable difference of + 10%.
A multi-circuit protection valve is provided for a vehicle compressed-air supply device. A first port for a service brake includes two mutually separate service brake circuit ports for a first service brake circuit and a second service brake circuit. The two service brake circuit ports are protected by first and second service brake circuit overflow valves, respectively. A second port for a parking brake, is protected by an overflow valve, wherein one of the two service brake circuits can be filled preferentially. The overflow valve has two active surfaces which can be acted on with a valve inlet pressure and a valve outlet pressure, respectively. The overflow valve has a third active surface, which is acted on with the service brake pressure from the non-preferentially filled service brake circuit. Forces generated by the three active surfaces counteract a closing force in order to open or hold open the overflow valve.
Multi Circuit Protection Valve
Tractor Protection Valve,Trailer Protection Valve,Bendix Tractor Protection Valve,Circuit Protection Valves With Sensors
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