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What type of pipe is used in underground fire protection?

Concrete, ductile iron, high-density polyethylene, copper, and stainless steel are all permitted by the NFPA for underground fire piping. HDPE plastic piping is often used in areas where seismic inputs are a consideration.

What is the depth of underground pipe for NFPA?

Depth of cover for the underground pipe and how much the clearance is between top of pipe and concrete sidewalk slab or roadway pavement. NFPA 24, Section 10.4. 3, requires that the depth of cover for fire service main pipe be not less than 2 1/2 ft. or 1 ft. below the frost line for the locality.

What material is underground piping NFPA?

I understand ductile iron, concrete, plastic, copper and stainless steel are all permitted by NFPA 24.

What are the drainage requirements for NFPA 13?

ing to NFPA 13, risers that are 2 should use a 3/4 or larger drain connection. If the riser is 2 or 3, then the drain connection must be at least 1 inches. If its 4, then the drain connection should be 2 inches or larger. This connection leads to the main drain valve.

What are the requirements for NFPA 24 underground flushing?

The requirements and procedures to properly flush underground water supplies are found in NFPA 24. This standard requires all piping from the water supply point of connection to the incoming fire pump suction lead-in to be flushed at a minimum velocity of 15 feet/second before connection with the fire pump.

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What is the standard depth of underground pipes?

It is most effective to place a drainage pipe in the ditch at a depth of 12 to 18 inches and then fill the ditch with gravel.

What materials are used for underground fire pipes?

Pipe running under a building or building foundation shall be stainless steel and shall not contain mechanical joints.

What NFPA is for underground?

NFPA 520: Standard on Subterranean Spaces.

What material is underground piping NFPA?

I understand ductile iron, concrete, plastic, copper and stainless steel are all permitted by NFPA 24.

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What type of pipe is used in underground fire protection?

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What is the standard depth of underground pipes?

What materials are used for underground fire pipes?

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