GROCO 1-1/2" NPT x 1-1/2" ID Bronze 90 Degree Pipe to Hose Fitting Standard Flow Elbow

The GROCO 1-1/2" NPT x 1-1/2" ID Bronze 90 Degree Pipe to Hose Fitting Standard Flow Elbow (model PTHC-1500) is a marine and industrial-grade connection component engineered for applications requiring reliable fluid transfer in corrosive environments. This 90-degree elbow fitting bridges male NPT pipe threads to hose ID connections, delivering the directional flow control essential in saltwater systems, bilge installations, and offshore equipment where standard plumbing fittings fail under salt-air exposure.

Constructed from C83600 bronze—a copper-tin alloy selected specifically for its corrosion resistance in marine environments—this fitting withstands prolonged exposure to saltwater and moisture without degradation. The 1-1/2" NPT male connection threads onto deck plates, through-hull fittings, and manifold systems, while the matching 1-1/2" hose ID allows seamless coupling to marine-grade hose assemblies. Standard flow rating prioritizes volume delivery over pressure restriction, making it ideal for cooling water circulation, ballast systems, and deck wash applications where flow rate matters more than high-pressure containment. UL Listed under category 647B, confirming compliance with electrical safety standards for marine equipment. Note: C83600 bronze does not meet NSF-61 potable water certification and is unsuitable for freshwater systems intended for drinking water supply.

This fitting serves vessel operators, maritime technicians, and industrial maintenance crews working with through-hull installations, seawater cooling loops, and fuel or bilge transfer systems. The 90-degree angle eliminates the need for multiple fittings in confined spaces—critical when working below deck or in engine compartments where straight-line runs are impossible. Available in sizes from 1/2" through 5", the GROCO PTHC-1500 integrates into existing bronze fitting systems without material incompatibility or galvanic corrosion concerns.

Bronze fittings represent the industry standard for marine applications precisely because they resist rust and degradation in ways that steel or iron cannot match. The GROCO brand maintains strict manufacturing tolerances on thread pitch and bore diameter, ensuring leak-free connections under thermal cycling and vibration common to marine engine compartments and deck systems.