Merit Brass 3603D-04 90 Degree Street Elbow 1/4 in Ss

Product Description

The MERIT BRASS 3603D-04 is a 90-degree street elbow fitting designed for threaded pipe systems operating at high pressure. Constructed from 316/316L stainless steel, this fitting provides strong corrosion resistance in demanding environments including chemical, marine, and industrial applications. It features a female NPT inlet and a male NPT outlet, allowing it to connect directly into a female-threaded pipe or fitting without an additional nipple. Rated to 3,000 psi, it is suited for high-pressure fluid and gas lines. Licensed plumbers, pipefitters, and mechanical contractors install this fitting in commercial and industrial systems where corrosion resistance and pressure integrity are critical.

This street elbow is used in residential and commercial plumbing, process piping, and instrumentation systems that require a 90-degree directional change. The FNPT x MNPT configuration makes it well suited for inline installation directly into a valve, pump port, or female-threaded pipe end. The 1/4 inch fitting size is commonly found in instrument tubing, control line, and small-diameter process piping. Stainless steel construction makes this fitting appropriate for corrosive media, wet environments, and applications where iron or brass fittings are not acceptable.

Key Features

• 316/316L stainless steel construction for superior corrosion resistance
• 3,000 psi pressure rating suitable for high-pressure service
• FNPT x MNPT threaded end connections for direct inline installation
• 90-degree street elbow geometry eliminates need for a separate nipple
• 1/4 inch fitting size for small-diameter pipe and instrument line applications

Compatibility

Designed as an OEM-style threaded pipe fitting for 1/4 inch NPT piping systems requiring a 90-degree directional change in high-pressure service lines.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable mechanical and plumbing codes such as the IPC or ASME B31.3 for process piping. Shut off and depressurize the system fully before removing or installing any threaded fitting. Apply an appropriate thread sealant or PTFE tape to the male threads prior to assembly. Do not overtighten threaded stainless steel fittings, as galling can permanently seize the connection.