Parker 3/4 CD45-S 45 Degree Street Elbow 3000 Psi

Product Description

The PARKER 3/4 CD45-S is a 45-degree street elbow fitting designed for industrial pipe systems operating under high-pressure conditions. It connects using MNPTF x FNPTF threading, with both male and female thread sizes of 3/4 inch. Rated to 3,000 psi maximum working pressure, this fitting is built for demanding fluid power and piping applications. Licensed plumbers and industrial pipefitters install this type of fitting when a directional change is needed in a threaded pipe run without adding an extra coupling or nipple. Its street-elbow configuration integrates a male thread on one end and a female thread on the other for direct inline installation.

This fitting is suited for industrial and commercial pipe systems where a 45-degree change in direction is required within a threaded assembly. Typical applications include hydraulic lines, compressed air systems, and high-pressure fluid distribution headers. The MNPTF x FNPTF connection type makes it compatible with standard NPT-threaded pipe and fittings found throughout industrial facilities, manufacturing environments, and mechanical rooms. It meets SAE standard 140339, making it appropriate for systems requiring documented pressure fitting standards.

Key Features

• 45-degree street elbow configuration eliminates the need for a separate nipple fitting
• 3,000 psi maximum working pressure rating for high-pressure system use
• MNPTF x FNPTF connection on both ends for standard NPT threaded pipe compatibility
• 3/4 inch male and 3/4 inch female thread sizes for direct inline installation
• Meets SAE standard 140339
• Sold individually — package quantity of 1

Compatibility

Designed as an OEM-style replacement or new-installation fitting for industrial threaded pipe systems using standard 3/4 inch NPT connections rated for up to 3,000 psi working pressure.

Installation Notes

Installation should be performed by a licensed plumber or qualified pipefitter in accordance with applicable mechanical codes. Depressurize and isolate the system completely before removing or installing any threaded fittings. Apply appropriate thread sealant or PTFE tape to male threads before assembly and tighten to snug-plus engagement without over-torquing, which can crack fittings or distort threads. Verify system pressure does not exceed the 3,000 psi rating after returning the line to service.