Weld Purge Self Calibrating Monitoring Kit
Weld Purge Tester – Self Calibrating Analyser Kit
  • Self Calibrating
  • Purge Monitor
  • Handheld Unit
£295.00 ex VAT Add to basket
DWT Weld Purge Monitor Oxy Pro
DWT Weld Purge Monitor Oxy Pro
  • DWT Brand
  • Purge Monitor
  • Accurate to 5PPM
£2,250.00 ex VAT Add to basket
TIG Purge Plugs
Welding Purge Plugs | Various Sizes Available
  • Walter Schnorrer
  • Purge Plugs
  • Sizes from 10mm to 100mm
From £4.50 Select options
Walter Schnorrer Purge Plug Kit 12 - 76mm
Walter Schnorrer Welding Purge Plug Kit | 12mm – 76mm
  • Walter Schnorrer
  • Purge Plug Kit
  • 0.5″ to 3″ Pipe
£85.00 ex VAT Add to basket
Walter Schnorrer Purge Kit for up to 6 inch pipe
Walter Schnorrer Welding Purge Plug Kit | 3/4” to 4” Pipes
  • Walter Schnorrer
  • Purge Plug Kit
  • 0.75″ to 4″ Pipe
£1,434.00 ex VAT Add to basket
Flange to pipe welding purging kit
Walter Schnorrer Welding Purge Plug Kit | 3/4” to 4” Pipe to Flange
  • Walter Schnorrer
  • Purge Pipe and Flange Kit
  • 0.75″ to 4″ Pipe
£1,288.00 ex VAT Add to basket
Flange to pipe welding purging kit
Walter Schnorrer Welding Purge Plug Kit | 3/4” to 6” Pipe to Flange
  • Walter Schnorrer
  • Purge Pipe and Flange Kit
  • 0.75″ to 6″ Pipe
£1,752.00 ex VAT Add to basket
Walter Schnorrer Purge Kit for up to 6 inch pipe
Walter Schnorrer Welding Purge Plug Kit | 3/4” to 6” pipes
  • Walter Schnorrer
  • Purge Plug Kit
  • 0.75″ to 6″ Pipe
£2,085.00 ex VAT Add to basket
DWT Pipe Purge System – Full Kit (25mm – 165mm ID)
  • DWT Brand
  • Purge Bung Kit
  • 25 – 165mm ID Pipe
£950.00 ex VAT Add to basket
WS Drag Shield
Walter Schnorrer Shielding Gas Trailing Shield
  • Walter Schnorrer
  • Trailing TIG shield
  • Variety of sizes
Price on Application Read more
Walter Schnorrer Purge Chamber
Walter Schnorrer Purge Chamber
  • Walter Schnorrer
  • Purge Chamber
  • 1000 or 1500mm size
Price on Application Read more
Walter Schnorrer SC PROFI Pipe Purge Bungs 17mm
SC Profi 13 – 16mm Pipe Purge Bungs
  • Walter Schnorrer
  • Purge Bung Kit
  • 13 – 16mm ID Pipe
£117.00 ex VAT Add to basket
SC PROFI 21mm Pipe Purging Bungs
SC Profi 16 – 20mm Pipe Purge Bungs
  • Walter Schnorrer
  • Purge Bung Kit
  • 16 – 20mm ID Pipe
£117.00 ex VAT Add to basket
1700024 Pipe Purge Bungs 18 - 23mm Walter Schnorrer
SC Profi 18 – 23mm Pipe Purge Bungs
  • Walter Schnorrer
  • Purge Bung Kit
  • 18 – 23mm ID Pipe
£117.00 ex VAT Add to basket
Pipe Purge Kit with triple seals 23 - 29mm
SC Profi 23 – 29mm Pipe Purge Bungs
  • Walter Schnorrer
  • Purge Bung Kit
  • 23 – 29mm ID Pipe
£133.00 ex VAT Add to basket
Pipe Bung Set 231mm SC PROFI Walter Schnorrer
SC Profi 29 – 38mm Pipe Purge Bungs
  • Walter Schnorrer
  • Purge Bung Kit
  • 29 – 38mm ID Pipe
£158.00 ex VAT Add to basket
Pipe Bung Set 231mm SC PROFI Walter Schnorrer
SC Profi 36 – 43mm Pipe Purge Bungs
  • Walter Schnorrer
  • Purge Bung Kit
  • 36 – 43mm ID Pipe
£176.00 ex VAT Add to basket
Pipe Bung Set 231mm SC PROFI Walter Schnorrer
SC Profi 42 – 53mm Pipe Purge Bungs
  • Walter Schnorrer
  • Purge Bung Kit
  • 42 – 53mm ID Pipe
£203.00 ex VAT Add to basket
Pipe Bung Set 231mm SC PROFI Walter Schnorrer
SC Profi 45 – 58mm Pipe Purge Bungs
  • Walter Schnorrer
  • Purge Bung Kit
  • 45 – 58mm ID Pipe
£209.00 ex VAT Add to basket
Pipe Bung Set 231mm SC PROFI Walter Schnorrer
SC Profi 55 – 67mm Pipe Purge Bungs
  • Walter Schnorrer
  • Purge Bung Kit
  • 55 – 67mm ID Pipe
£214.00 ex VAT Add to basket
Pipe Bung Set 231mm SC PROFI Walter Schnorrer
SC Profi 68 – 80mm Pipe Purge Bungs
  • Walter Schnorrer
  • Purge Bung Kit
  • 68 – 80mm ID Pipe
£233.00 ex VAT Add to basket
Pipe Bung Set 231mm SC PROFI Walter Schnorrer
SC Profi 79 – 92mm Pipe Purge Bungs
  • Walter Schnorrer
  • Purge Bung Kit
  • 79 – 92mm ID Pipe
£238.00 ex VAT Add to basket
Pipe Bung Set 231mm SC PROFI Walter Schnorrer
SC Profi 98 – 114mm Pipe Purge Bungs
  • Walter Schnorrer
  • Purge Bung Kit
  • 98 – 114mm ID Pipe
£290.00 ex VAT Add to basket
Pipe Bung Set 231mm SC PROFI Walter Schnorrer
SC Profi 120 – 136mm Pipe Purge Bungs
  • Walter Schnorrer
  • Purge Bung Kit
  • 120 – 136mm ID Pipe
£316.00 ex VAT Add to basket
Pipe Bung Set 231mm SC PROFI Walter Schnorrer
SC Profi 150 – 170mm Pipe Purge Bungs
  • Walter Schnorrer
  • Purge Bung Kit
  • 150 – 168mm ID Pipe
£373.00 ex VAT Add to basket

PURGING EQUIPMENT

A range of pipe purging equipment ranging from purge bungs to purge monitors.  The purge apparatus listed here can be used for multiple applications including stainless steel exhaust systems, sanitary welding as well as other pipe welding applications.

Why Back Purge

When welding, a shielding gas is used to protect the molten weld pool from the atmosphere.  If welding a joint though, the shielding gas from the torch is not shielding the back of the weld.  The rear of the weld can then allow entry of the air, creating contamination.  This contamination can then lead to decreased weld strength and decreased anti corrosive properties within the solidified weld. Purging equipment can be used to create a dam either side of the weld joint, with bungs or tapes.  The space between the dams can then be filled with a shielding gas to displace atmospheric gases.  A purge monitor can accurately measure the oxygen levels inside the purged area to ensure complete shielding of the welded area.

By creating an oxygen-free environment on the backside of the weld, back purging prevents oxidation, maintains the inherent properties of the parent material, and ensures the longevity and reliability of welded components. Furthermore, effective back purging ensures that the welded joint retains its corrosion-resistant properties, making it suitable for applications where maintaining hygiene and preventing contamination is critical.  Real world examples of where back purging is critical is in Stainless Steel car exhaust systems as well as sanitary pipework used to carry food or drink.