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Black 90-degree reducing elbow 4-inch by 3-inch FNPT threads

Legend Valve

Legend Valve 350-139 4" x 3" Black Reducing Elbow 90° FNPT x FNPT

SKU CH-SA6Y-P69F7

A 4-inch by 3-inch black reducing elbow with 90-degree FNPT threads for changing pipe direction and size

  • 4" x 3" reducing size adapts different pipe diameters
  • 90° elbow redirects flow around tight corners
  • FNPT x FNPT threads connect directly to female fittings
  • Black steel construction resists corrosion in plumbing systems
  • Legend Valve brand identifies the manufacturer for sourcing

4-inch by 3-inch Reducing Elbow

This black reducing elbow connects a four-inch female NPT fitting to a three-inch female NPT fitting at a ninety-degree angle. It is designed for plumbing installations that require a change in pipe diameter and direction. The fitting suits contractors and maintenance teams working with threaded steel or iron pipe systems. California Proposition 65 warnings apply to this product.

Threaded Connection and Flow Transition

The elbow accepts FNPT threads on both ends so it joins directly to matching pipe nipples or fittings without adapters. Its reducing design lets the system step down from a larger main line to a smaller branch while turning the flow path. No soldering, welding or special tools are required beyond standard pipe wrenches and thread sealant.

Thermal and Pressure Considerations

The fitting operates at the temperature and pressure limits of the piping material and thread sealant used in the assembly. It adds no moving parts, electrical load or noise of its own. System designers should verify that the connected pipe schedule and joint compound meet the project's service conditions.

Highlights

  • 4" x 3" reducing size adapts different pipe diameters
  • 90° elbow redirects flow around tight corners
  • FNPT x FNPT threads connect directly to female fittings
  • Black steel construction resists corrosion in plumbing systems
  • Legend Valve brand identifies the manufacturer for sourcing

Specifications

BrandLEGEND VALVE

Questions about this item

What is the 90° angle designed to handle in a plumbing system?

The 90° reducing elbow changes flow direction between a 4-inch and 3-inch female NPT connection in black steel piping.

Does the fitting get hot or make noise when water runs through it continuously?

As a passive steel fitting with no moving parts, it generates no noise or heat during continuous water flow.

What pipe sizes and thread type must I already have to install this elbow?

You need existing 4-inch and 3-inch pipes with female NPT threads to connect both ends of this reducing elbow.

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