The 8-PPM PURGING 6" Inflatable Pipe Double Purge Bag System is an advanced solution engineered for efficient and high-quality weld purging. This system utilizes two robust dams, interconnected by an armored spinal tube, to create a secure seal on both sides of the weld joint. The dams are strategically positioned to be unaffected by welding heat while remaining close enough to the joint to ensure the fastest possible weld purge time. Designed for ease of use, the system is inserted into the pipe's bore, with a luminous strip guiding precise centering to the weld gap. Upon initiating gas flow, the dams inflate, and once a pre-set pressure is achieved, a specialized valve gently releases inert gas into the weld chamber. This controlled release purges the interspace without turbulence, effectively removing oxygen through integral exhaust tubes within the bags. This process enables welders to consistently produce even, oxidation-free penetration weld beads. For optimal results, the system is compatible with 8-PPM PURGING's oxygen monitors, which indicate when the required low oxygen levels have been reached, signaling the readiness for welding. After welding, the dams are easily deflated by simply disconnecting the purge gas feed, allowing for quick and effortless withdrawal of the system. A key design advantage is the single gas connection required for both dam inflation and weld purging, streamlining the setup process. This 6" Inflatable Pipe Double Purge Bag System is suitable for nominal pipe sizes of 6" (150 mm) and accommodates internal diameters ranging from 5.32 - 6.68" (135 - 170 mm). It comes equipped with universal fittings, including an International 21 KA series male connector and an Americas ¼" (0.25") NPT male connector, ensuring broad compatibility. Larger sizes and custom solutions are available upon request, offering a versatile 35 mm / 1.37" expansion range. SPECIFICATIONS • System Type: Inflatable Pipe Double Purge Bag System • Manufacturer: 8-PPM PURGING • Nominal Pipe Size: 6" (150 mm) • Internal Diameter Range: 5.32 - 6.68" (135 - 170 mm) • Dam Configuration: 2 dams connected by armoured spinal tube • Gas Connection: Single connection for both dam inflation and weld purging • International Connector: 21 KA series male connector • Americas Connector: ¼" (0.25") NPT male connector • Expansion Range: 35 mm / 1.37" • Weight: 1 lbs / 0.38 kg
