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Silver metal suction strainer twelve inch diameter round perforated top three inch threaded inlet

Zoro Select

Zoro Select 5RWN1 Suction Strainer 12 Dia 3 NPSM Top Round Perf

SKU CH-9WGJ-7BN0Y

12-inch diameter suction strainer with 3 NPSM inlet and top-round perforated steel screen for pump protection

  • 12 in diameter suits large flow requirements
  • 3 in NPSM inlet fits standard pipe threads
  • top round perforations distribute intake evenly
  • steel construction resists corrosion in fluid systems
  • Proposition 65 warning notes regulated substances present

Suction Strainer for 3 NPSM Inlet

This Zoro Select suction strainer fits a 3 inch NPSM threaded inlet and uses a 12 inch diameter perforated top. It is built for pump protection in plumbing and fluid-handling systems where debris must be kept out of the intake. The steel construction suits industrial and commercial installations.

Perforated Top Round Design

The single specification that decides fit is the perforation shape and location: a round pattern on the top surface. This geometry determines how freely fluid enters while blocking particles that could damage the pump impeller. Match the perforation layout to your system's flow requirements before ordering.

Threaded Installation on Pump Inlet

Installation consists of threading the 3 inch NPSM connection directly onto the pump suction port. The strainer seats against the port face; no separate gasket is mentioned in the data. Over-tightening steel threads can strip the fitting or crack the pump housing, so hand-tighten plus a slight turn is the usual practice. California Proposition 65 warnings apply to this product.

Highlights

  • 12 in diameter suits large flow requirements
  • 3 in NPSM inlet fits standard pipe threads
  • top round perforations distribute intake evenly
  • steel construction resists corrosion in fluid systems
  • Proposition 65 warning notes regulated substances present

Specifications

BrandZORO SELECT

Questions about this item

What does the 12-inch diameter mean once the strainer is installed in a real system?

The 12-inch diameter provides a large open area that reduces flow restriction and lets debris settle before reaching the pump inlet.

How does the 3 NPSM thread cap what I can connect in practice?

The 3-inch NPSM straight thread mates with standard NPSM or NPT fittings, so pipe size is fixed at 3 inches and you cannot step up or down without an adapter.

What does the top-round perforated design need to fit or mount correctly?

The strainer sits inside a tank or reservoir with the perforated top facing up; it requires a 3-inch NPSM female port on the suction line and enough clearance for the 12-inch body.

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