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Millar Couplings

Overview

Millar Couplings are heavy-duty, precision-engineered hose fittings designed to form secure, leak-proof connections in high-demand fluid handling systems. Often used in construction, agriculture, oil & gas, municipal services, and various industrial operations, Millar Couplings are compatible with a wide range of hoses—such as lay-flat, suction, or discharge hoses. They come in different configurations, materials, and sizes, giving end users the flexibility to tackle diverse pumping and fluid transfer tasks.

Key Uses & Applications

Water Transfer & Dewatering

Connect hoses in flood control, trench dewatering, irrigation, and general water transfer systems. Typical in construction sites, farms, and emergency response operations.

Agriculture & Irrigation

Secure fittings for delivering water, liquid fertilizers, or mild chemicals to fields. Used with lay-flat hoses and overhead spray systems.

Industrial Fluid Handling

Handles moderate to high-pressure liquid lines in factories, refineries, and process plants. Transfers water, coolants, or non-corrosive chemicals in production environments.

Petroleum & Chemical Transfer

Suitable for some petrochemical applications (check material compatibility). Used for oil, diesel, and various industrial chemicals in tanker trucks or storage terminals.

Municipal & Marine

Ideal for potable water lines (if made from food-grade materials) or raw water intake. Maritime use includes bilge pumping, salvage operations, and dredging lines (material-dependent).

Product Highlights

Precision Engineering

Manufactured with tight tolerances to ensure consistent, leak-resistant connections.

Durable Construction

Typically available in steel, stainless steel, brass, or aluminum, depending on model. Corrosion-resistant materials extend product life under demanding conditions.

Multiple Connection Types

Threaded ends (NPT, BSPT), hose shanks (barbed/smooth), or flanged ends. Wide range of coupling methods: clamp-on, crimp, or bolt-style attachments.

User-Friendly Designs

Serrated or beaded shank profiles ensure a strong grip within the hose. Easy assembly and disassembly for routine maintenance or hose replacement.

Varied Pressure Ratings

Engineered for moderate to high-pressure lines, depending on size and material. Check exact model specifications for maximum working/burst pressure details.

Technical Specifications

Size Range

Commonly 1" to 12" (larger or custom sizes may be available)

Materials

Steel (carbon or galvanized), Stainless Steel (304/316), Brass, Aluminum

Working Pressure

Typically ~150–300 PSI (10–20 bar) for standard lines (exact rating varies by size/material)

Temperature Range

-20°C to +200°C (-4°F to +392°F), material-dependent

End Connections

Threaded (NPT/BSPT), Hose Shank, Camlock Adaptors, Flanged

Surface Finishes

Plain, Zinc-plated, Galvanized, or Polished (stainless)

Compliance

Some variations meet industry-specific standards (e.g., ISO, ANSI, FDA for food-grade fittings)