Aluminum 3" NPSH Barrel Strainer with Foot Valve (USA)

Item Number: BS30PFV-D
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$318.00
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NH / NST: The most common thread type in use by fire departments today is NST or National Standard Thread. NST also goes by the initials NH or National Hose. It can even be referred to as NHT or National Hose Thread but NST or NH is more common these days. NH = NST.

  • The female side of a NH / NST coupling will only connect to a male NH / NST connection
  • The male side of a NH / NST coupling will only connect to a female NH / NST connection

NPSH: National Pipe Straight Hose (NPSH) or Iron Pipe Thread (IPT) has the same threads per inch (TPI) as National Pipe Tapered (NPT) but the thread does not taper. NPSH is a straight thread and seals by a gasket in the female coupling which allows for a swivel, just like NH / NST, which make both ideal for hose couplings.

  • The female side of a NPSH coupling will only connect to a male NPT pipe or a male NPSH connection
  • The male side of a NPSH coupling will only connect to a female NPSH connection.
    It will NOT thread into a female NPT pipe. For example, a male NPSH coupling will NOT thread into a female metal or pvc pipe.

NPT: National Pipe Tapered is common in plumbing and some industrial uses. Sometimes referred to as pipe thread because PVC pipe and schedule 40 pipe are typically threaded in NPT. As its name implies this is a tapered thread so that the outside diameter of the male (ODM) gets smaller towards the end of the fitting and the inside diameter of the female narrows with depth. As the two fittings are threaded together the opposite tapers force thread friction and makes the seal without the use of a gasket.

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Additional Details

3 inch NPSH barrel strainer with poppet style check valve. Female threads do not swivel. NPSH is "straight pipe thread" as it seals via a gasket in the female and does not taper like NPT.

A foot valve is essentially a check valve that is integrated into this aluminum barrel strainer which is attached to the inlet side (suction side) of a water suction hose to keep it from losing it's prime during the off cycle. This can drastically reduces water relay time. It can also be back filled to aid in obtaining pump prime if suction pump is weak.

Comes with eyelet on the cap to attach a line for easy retrieval and maneuvering.

If possible it is best to measure the MALE fitting. The outside diameter of a 2 1/2 inch NH / NST male hose coupling or fire hydrant is 3 1/16 (3.06) inches. The outside diameter of a 3 inch NH / NST male hose coupling or fire hydrant is 3 5/8 (3.62) inches. The outside diameter of a 2 1/2 inch NPT or NPSH male hose coupling is 2 13/16 (2.84) inches. The outside diameter of a 3 inch NPT or NPSH male hose coupling is 3 1/2 (3.47) inches.

Specifications

  • Made in USA
  • Material: 6061-T6 Aluminum Seamless Extrusion
  • Finish: Hard Anodized
  • Threads: 3 inch NPSH
  • Hole Sizes: 3/8 inch
  • Number of Holes: 210
  • Check Valve Included
  • This strainer will only connect to a hose with 3 inch Male NPT or NPSH threads

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