FLASHBACK ARRESTOR S55 AC
- Product group:
- Product number:
No. 1 Choice for Flame Arrestors (Flashback Arrestors) and OCIMF Compliance Protect regulators and gas cylinder against flashback.
This product supersedes product no: 619254
Maritime authorities, such as the Norwegian Maritime Directorate, require the installation of flashback arrestors for acetylene and oxygen, as incorrect maintenance or use of gas welding equipment may cause flashbacks of various types.
Normally these will stop in a well designed torch, and are only noticed as a popping sound in the torch. However, faulty handling, maintenance or gas pressure setting may lead to a penetrating flashback. This means that the gas flame passes back through the hose(s). In some cases it may also pass the regulator and ultimately reach the cylinder.
The flashback arrestors supplied by Unitor are designed for use both with gas cylinders and gas outlet stations and incorporate several safety functions:
- Non-return valve preventing reverse flow of gases, thereby preventing a gas mixture from reaching pipelines or cylinders
- Flame filter to quench the flame front of a flashback or a burnback
- Temperature activated cut-off to prevent further gas supply in case of fire (activated if the temperature rises to approximately 100° C).
- Pressure activated cut-off to prevent further gas supply after a flashback (activated by the pressure shock in front of the flashback).
- Indicator ring showing that the pressure activated cut-off has been activated; the ring is also used for resetting the flashback arrestor
- The flashback arrestors are build Conform to: EN 730/ISO 5175 and with BAM Certification no.: ZBF/009/12
For safety reasons we strongly recommend annual testing of the Flash back arrestors, and to change flashback arrestors every 5 years, calculated from the date you start using the equipment.
- Pressure activated cut-off valve
- Temperature activated cut-off valve
- Flame arrestor
- Non-return valve
- Stops the pressure front
- Prevents fire from being supported by gas
- Stops the flame front
- Stops gas from back feeding into the system
|Invent Hazard Material (IMO/EU) classification||NA|
|Product catalog URL||https://www.wilhelmsen.com/product-catalogue/products/gases-refrigerants-and-cylinders/gas-distribution-system/outlet-station/flashback-arrestor-s55-ac/?epieditmode=true|
|Operating pressure [bar]||1.5 maximum|
|Product name||Product number||Diameter [mm]||Length [mm]||Product catalog URL||Capacity||Operating pressure [bar]|
|FLASHBACK ARRESTOR S55 AC||708537 (supersedes 619254)||27.5||119||https://www.wilhelmsen.com/product-catalogue/products/gases-refrigerants-and-cylinders/gas-distribution-system/outlet-station/flashback-arrestor-s55-ac/?epieditmode=true||8,5 m3/h||1.5|
|FLASHBACK ARRESTOR S55 OX||708545 (supersedes 619262)||27.5||119||https://www.wilhelmsen.com/product-catalogue/products/gases-refrigerants-and-cylinders/gas-distribution-system/outlet-station/flashback-arrestor-s55-ox/?epieditmode=true||50 m3/h||10|
|FLASHBACK ARRESTOR W-66S ACETYLENE||183970||https://www.wilhelmsen.com/product-catalogue/products/welding/gas-welding-brazing--cutting/gas-cylinder-regulators-and-flashback-arrestors/flashback-arrestor-w-66s-acetylene/?epieditmode=true||19 m3/h||1.5|
|FLASHBACK ARRESTOR W-66S OXYGEN||302976||https://www.wilhelmsen.com/product-catalogue/products/welding/gas-welding-brazing--cutting/gas-cylinder-regulators-and-flashback-arrestors/flashback-arrestor-w-66s-oxygen/?epieditmode=true||105 m3/h||10|
Is accessory to
526509 STANDARD GAS ACCESSORIES Product number: 526509
734013 QUICK COUPL. AC HOSE TO HOSE 3/8INCH Product number: 734013
734025 QUICK COUPLING AC MALE G3/8LH Product number: 734025
526482 2X9MM 3/8 INCH AC/OX TWINHOSE W/FITTING 25MTR Product number: 526482
320205 QUICK COUPLING AC HOSE TO HOSE 6MM Product number: 320205
734016 QUICK COUPL. AC REGULATOR TO HOSE 3/8INCH Product number: 734016
526472 2X6.3MM ¼ INCH AC/OX TWINHOSE W/FITTING 10MTR Product number: 526472
526478 2X9MM 3/8 INCH AC/OX TWINHOSE W/FITTING 10MTR Product number: 526478
Is spare to
5502771 OUTLET STATION-700 COMPL. W/SG-5 AND CABINET Product number: 5502771