PSTP positive pressure shell type blowing system

The pressure shell type blowing system is suitable for all positive pressure shell type motors in explosion-proof environments. The system quickly blows before the motor starts, effectively replacing the flammable and explosive gases present in the equipment cavity before starting. The blowing flow rate and time are usually tested and set by the motor manufacturer. After completing the ventilation and blowing, the system switches to automatic leakage compensation mode, which will automatically compensate for pressure changes in the motor chamber. The automatic compensation system will provide an uninterrupted constant pressure to the equipment to prevent external flammable and explosive gases from entering the motor cavity after the motor is started. After the motor enters the leakage compensation state, it can start and stop at any time without the need for further blowing (the positive pressure system will monitor the chamber pressure in real time during equipment operation, and the
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Detail

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1、 Model and meaning



2、 Product series



3、 Basic technical parameters


System type: PSTP-6ZY blowing system

Explosion proof mark: Exde(px)ICT6Gb

Operation mode: Automatic leakage compensation using "CLOSED LOOP AUTOMATIC PRESSION SYSTEM"

Blow flow rate: 2000 3000 4000 5000 6000NL/MIN

Leakage compensation amount: maximum 1500NL/MIN @ 5BARG intake pressure

Shell material: 316 stainless steel

Installation method: Install according to the drawing requirements and fix vertically



4、 Specification and size


The specifications of the control unit and pressure relief unit (see attached table) allow users to select the orifice plate of the RLV pressure relief valve based on the flow rate.