What is ASTM A795?

ASTM A795 is an ASTM specification for steel pipe to be used in fire sprinkler systems. It is available in a black or red lacquer finish, or with a hot-dipped zinc coating. TPMC supplies ASTM A795 ERW steel pipe in UL listed/ FM approved.

Why is fire sprinkler pipe orange?

With over a decade of experience performing failure analysis investigations on orange plastic (CPVC) fire sprinkler piping systems. We have found that most failures are caused by exposure to incompatible chemicals, on the inside (e.g., Allied ABF) and outside (e.g., fire caulk, spray foam, etc.).

What material are fire sprinklers made of?

Steel
Steel has traditionally been the material of choice for fire sprinklers, although thermoplastic pipes now dominate residential and other light-hazard categories.

What is ASTM A139?

ASTM A139 welded steel pipe specification covers five grades of electric-fusion (arc)-welded straight-seam or helical-seam steel pipe. Heat analysis of each heat of steel was made to determine the percentage of the elements as per chemical requirements. …

What is a135 pipe?

Standard Specification for Electric-Resistance-Welded Steel Pipe. This specification covers two grades of electric-resistance-welded steel pipe intended for conveying gas, vapor, water or other liquid. The steel shall be made by either or both basic-oxygen or electric-furnace processes.

Can PVC pipe be used for fire sprinkler system?

Certain CPVC plastic pipe and fitting systems listed to system standard UL 1821 can be used to supply water to fire sprinklers for low-rise residential occupancies according to installation standard NFPA 13R and to supply light hazard occupancies according to NFPA 13.

Can I use galvanized pipe for sprinkler?

Never use galvanized steel piping for wet pipe fire sprinkler systems. If galvanized steel piping is used for dry and preaction systems, then an FM Approved nitrogen generator must be used for pressure maintenance to prevent oxygen corrosion.

Can fire sprinklers be PVC?

Plastic pipe fire sprinkler systems are available in CPVC and PEX from several manufacturers and are designed to be installed in certain residential and/or light hazard applications. Plastic systems are specially listed for use in wet fire sprinkler systems. Some system components are not required to be listed.

Is PVC pipe fire rated?

The official flammability rating of PVC (polyvinyl chloride) is UL 94 V-0, which means that it is regarded as a self-extinguishing material. That’s because unless you keep PVC pipe under intense heat and flame, it doesn’t burn very well at all.

What is a139 pipe?

This specification covers five grades of electric-fusion (arc)-welded straight-seam or spiral-seam steel pipe in 4″ to 92″ inclusive with wall thickness up to 1 ” inclusive. The pipe is intended for conveying liquid, gas, or vapor.

What is ASTM A135?

ASTM A135 / A135M – 21 Standard Specification for Electric-Resistance-Welded Steel Pipe.