Reducing coupling ODLEWNIA 1¼" x ½" black cast iron, model 3, weight 0.224 kg

Cast iron reducing coupling by ODLEWNIA, model 3, with threaded ends sized 1¼" and ½" is designed to join pipes or fittings of different diameters. The coupling is finished in black and provides a rigid mechanical connection suited for plumbing, heating and general pipework where a reduction in diameter is required. With a compact form and a mass of 0.224 kg, it fits installations that require a durable metal transition piece between larger and smaller threaded pipework.

Advantages

This black cast iron reducing coupling offers mechanical strength and resistance to deformation under typical plumbing loads. Its threaded design enables secure, leak-resistant connections when combined with appropriate sealing materials. The compact weight and simple geometry make it easy to handle and install in confined spaces, while the cast iron construction provides long-term dimensional stability in non-corrosive or properly protected environments.

Suitable for

• Connecting 1¼" to ½" threaded pipes in residential or commercial plumbing
• Adaptation between different diameter fittings in heating systems
• General pipework where a robust metal reducing coupling is required

Key specifications

• Material: cast iron
• Finish: black
• Threaded ends: 1¼" (larger) and ½" (smaller)
• Weight: 0.224 kg
• Type: reducing coupling for threaded pipe connections

How to use

Before assembly, ensure mating threads are clean and free of debris. Apply an appropriate thread sealant or tape to the male threads to ensure a leak-resistant joint. Thread the coupling onto the larger or smaller pipe end as required, then tighten using suitable wrenches on the coupling flats or body without applying excessive torque that could damage threads. Verify alignment of connected piping and perform a pressure or leak test according to the installation standards for the system.

Usage recommendations

Use in systems compatible with cast iron; avoid exposure to aggressive corrosive environments unless additional protection is applied. Select thread sealants rated for the fluid and temperature conditions of the installation and avoid over-tightening to preserve thread integrity.