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SV end-of-line flame arrestor
Multilayer wire-mesh element illustrating the flame-arrestor mechanism; not a complete product or exact model.

SV end-of-line flame arrestor

Type SV is described for natural-gas or diesel-engine duty as additional equipment to a safety valve. Its protective duty is deflagration and its installation arrangement is end of line; establish the hazard and mounting position before selection. The listed size range is NPS 3/8–2. Specify materials, connections, fluid composition, ignition-source distance and permissible pressure drop for this configuration. Qualification for one flame-arrestor duty must not be assumed to cover another hazard or installation arrangement.

Technical specifications

TypeSV
Protection dutyDeflagration
InstallationEnd of line
Size rangeNPS 3/8–2
ApplicationNatural-gas or diesel-engine duty as additional equipment to a safety valve