Mueller Industries AN15504 600# 1/2″ NPTFE x 5/8″ Flare Pressure Regulating Valve

Mueller Industries AN15504 Pressure Regulating Valve Overview

The Mueller Industries AN15504 is a heavy-duty Pressure Regulating Valve (PRV) engineered for reliable downstream pressure control in HVAC, refrigeration, and plumbing applications. With a robust 600 lb pressure rating and a versatile 1/2″ NPT Female (NPTFE) inlet paired with a 5/8″ flare outlet, this valve delivers consistent performance in demanding system environments.

Key Features

• 600 lb (600) pressure rating for high-pressure system compatibility
• 1/2″ NPT Female (NPTFE) inlet connection for easy threaded installation
• 5/8″ flare outlet connection for secure, leak-resistant tubing attachment
• Designed to regulate and reduce downstream pressure to a safe, consistent level
• Built to Mueller Industries’ exacting quality standards for long service life
• Suitable for HVAC, refrigeration, and related fluid control applications

Connection Details

• Inlet: 1/2″ NPT Female (NPTFE)
• Outlet: 5/8″ Flare
• Pressure Rating: 600

Why Choose Mueller Industries?

Mueller Industries is a globally recognized manufacturer of copper, brass, and plastic products trusted by HVAC and plumbing professionals. The AN15504 PRV reflects their commitment to precision engineering, material quality, and field-proven reliability — making it a dependable choice for pressure management in a wide range of system configurations.