SANHA stainless steel coupling 18 mm d18 (model 6927018)

SANHA stainless steel coupling 18 mm d18 (model 6927018) is a precision-engineered connector intended for joining 18 mm piping in plumbing and heating systems. Manufactured from corrosion-resistant stainless steel, the coupling is suitable for environments where hygiene and long-term durability are important. It is designed to work with compatible 18 mm stainless steel or mixed-material piping systems in residential and commercial installations.

Advantages

The stainless steel construction provides strong corrosion resistance and extends service life compared with many non‑metal alternatives. The coupling offers a compact design that simplifies installation in confined spaces and delivers reliable mechanical connection with consistent internal diameter, minimising flow restriction. Material properties make it suitable for potable water, heating circuits and other applications where hygiene and chemical resistance are required.

Suitable for

• Connecting 18 mm stainless steel pipe runs in domestic plumbing
• Joining pipe sections in commercial heating and HVAC systems
• Mixed-material systems where a stainless steel transition is required
• Applications requiring corrosion resistance and hygienic operation

Key specifications

• Material: stainless steel
• Nominal diameter: 18 mm (d18)
• Form: straight coupling for in-line connection
• Typical use: plumbing and heating installations

How to use

Prepare pipe ends by cutting squarely and deburring to ensure full contact and correct fit. Slide the coupling onto one pipe end and align the second pipe to achieve a straight in-line connection. Depending on the installation system, secure the coupling according to the manufacturer’s recommended method (for example, by crimping, compression, or threaded engagement where applicable). Verify alignment and tightness, then pressure-test the assembly before putting the system into regular service.

Usage recommendations

Use with compatible 18 mm piping and fittings; confirm material compatibility in mixed-metal systems to avoid galvanic corrosion. Follow applicable standards and local regulations for potable water and heating installations. Regular inspection after installation will help ensure long-term performance.