Galvanized Malleable Cast Iron Reducing Elbows for Marine Piping Systems

Our galvanized malleable cast iron reducing elbows are essential pipe fittings for marine plumbing and shipboard systems. Designed to connect pipes of different diameters while changing flow direction by 90 degrees, these elbows are manufactured from high-grade malleable cast iron and hot-dip galvanized for superior corrosion resistance in harsh maritime environments.

Available with threaded NPT connections (ASME B1.20.1) and conforming to ASME B16.3 for malleable iron threaded fittings, these reducing elbows are suitable for use in freshwater, seawater, air, and steam lines. They are available in a range of reducing sizes from 1/2" NPT x 3/8" NPT up to 2" NPT x 1-1/2" NPT, with a working pressure rating of 300 psi WOG (water, oil, gas) and a temperature range of -20°F to 350°F.

Ideal for shipbuilding, offshore platforms, and commercial marine repairs, these elbows provide reliable, leak-proof connections in tight spaces. Their robust construction and uniform galvanized coating ensure long service life and easy installation. Browse our selection of marine-grade pipe fittings and equipment today.

Key Features

Technical Specifications

SpecificationDetail
MaterialMalleable cast iron (Grade 32510)
FinishHot-dip galvanized (zinc coating)
Connection TypeThreaded (NPT) per ASME B1.20.1
Product StandardASME B16.3
Size Range1/2" NPT x 3/8" NPT to 2" NPT x 1-1/2" NPT (custom sizes available)
Pressure Rating300 psi WOG (water, oil, gas)
Temperature Range-20°F to 350°F (-29°C to 177°C)
Angle90° reducing elbow
ApplicationMarine piping, shipbuilding, offshore platforms

Frequently Asked Questions

What sizes of galvanized malleable cast iron reducing elbows do you offer?

We offer a wide range of reducing size combinations, from 1/2" NPT x 3/8" NPT up to 2" NPT x 1-1/2" NPT. Standard sizes are in stock, and custom combinations can be ordered for your specific marine piping needs.

Are these reducing elbows threaded or weld-end?

They are threaded with NPT threads per ASME B1.20.1, making them easy to install with standard pipe thread sealant. This is the most common requirement for shipboard piping systems.

What is the pressure rating for these fittings?

These malleable cast iron reducing elbows are rated for 300 psi WOG (water, oil, gas), which covers most marine applications. For higher pressure requirements, please contact us.

Are these elbows suitable for seawater service?

The hot-dip galvanized coating provides good corrosion resistance, making them suitable for freshwater and mild seawater exposure. For highly corrosive saltwater environments, we recommend consulting with our technical team for alternative materials such as bronze or stainless steel.

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