Flat slotted bursting disc (PF)
Combined blasting is composed of plane slotted metal diaphragm and sealing film. Weakening structure of blasting pressure composed of slit and hole on metal diaphragm plane. When the system overpressure, the bursting piece along the weak link tensile damage, discharge pressure.
The bursting disc has the advantages of large discharge area, good sealing property, low blasting pressure, sensitive action, safety and reliability. Widely used in processing industry: coal, mineral powder, medicine, chemical fertilizer, plastic, food, fiber, pigment, textile and other dust protection, storage, storage bin, dust collector, air transportation equipment, dryer and other equipment.
primary type
Round flat slotted bursting disc (PF): the application of no back pressure and vacuum.
Slotted circular plate with bracket type of blasting (PFT): suitable for under vacuum or pressure to the occasion.
Working principle of bursting disc
According to the structure of the classification, there are three main types of blasting, namely, plate arch and counter arch. The comprehensive performance of poor plate type of blasting, mainly used in low and ultra-low pressure, especially large silo. The application of positive arch and inverted arch is more. For the traditional arch bursting sheet, its working principle is to use the tensile strength of the material to control the burst pressure. Found that the use of arch type of blasting all have the same limitations: blasting, blasting fragment will enter the discharge piping; because the central thickness of blasting sheet was intentionally weakened, easy fatigue and advance blasting; operating pressure should not exceed the minimum burst pressure blasting 65%. This has led to the emergence of anti arch type blasting film. The blasting of the compressive strength of the disc material to control the blasting pressure is compared with the traditional arch type of blasting, which has good anti fatigue performance, blasting without fragmentation and the operation pressure can reach the minimum burst pressure of more than 90% advantages. Under the subdivision, the anti arch type blasting piece includes reverse arch grooving type, inverted arch palatal tooth type and inverted arch tool type, etc..
Shanghai Lang Yan security system equipment Co. Ltd
Professional custom: explosion-proof film bursting system explosion-proof membrane explosion
Enterprises hold the national quality supervision, inspection and Quarantine Bureau of blasting film products special license
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Contact: Zhong Rong
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