1-1/4" or 1-1/2" MNPT TPR Screw-In Check Valve MPN:4UN78

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Brand: Dayton
Part #: 4UN78
UPC: 190735335369
SKU
510-G1522875
Regular Price $96.31 Special Price $68.79

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1-1/4" or 1-1/2" MNPT TPR Screw-In Check Valve

The Dayton 1-1/4in or 1-1/2in MNPT TPR Screw-In Check Valve is a reliable and versatile solution for general-purpose applications. This inline check valve features a thermoplastic rubber (TPR) body and screw-in design, making it easy to install and maintain. Its single-flow design ensures efficient fluid flow and prevents backflow, reducing the risk of contamination and damage to equipment. Suitable for use in various industries, including chemical processing, HVAC, and water treatment, this check valve is a great choice for applications where a compact and durable valve is needed. It ships in 1 day, making it a convenient option for urgent projects.

Top product features:

  • 1-1/4in or 1-1/2in TPR body provides chemical resistance.
  • Screw-in design allows for easy installation.
  • Single flow design prevents backflow.

Top product applications:

  • General Purpose
  • General Purpose
  • General Purpose

DAYTON 4UN78 is a screw-in check valve for general-purpose service. It has an inline, single-flow design with male NPT connections on both ends and fits 1-1/4 in. or 1-1/2 in. pipe sizes. This valve is intended for vertical mounting.

Key Features:

  • Type: Screw-in check valve
  • Application/Media: General purpose
  • Flow Design: Single
  • Mechanism and Body Design: Inline
  • Body Material: TPR
  • Connection Type: MNPT x MNPT
  • Connection Gender: Male x Male
  • Connection Type by Side: NPT x NPT
  • Pipe or Tube Size: 1-1/4 in. or 1-1/2 in.
  • Mounting Orientation: Vertical

Additional Information

  • Country of Origin: US
  • Drop Ship Item: No
  • Blind Ship Eligible: No
  • LTL Freight Required: No
  • Lead Time: Ships in 1 days
  • Minimum Order Quantity: 1
  • Unit of Measure: EA
  • Package Length: 6.40
  • Package Width: 4.50
  • Package Height: 4.50
  • Package Weight: 0.60
Product info last updated on March 3, 2026 12:08am UTC Category: Pipes, Valves and Fittings
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In stock