Sanplast brass reducing nipple DN-20/15 model VMNR25X20 for plumbing connections

The Sanplast brass reducing nipple VMNR25X20 (DN-20/15) is a compact threaded fitting designed to join pipes with 20 mm and 15 mm nominal diameters. Made of brass, the reducing nipple provides a corrosion-resistant connection suitable for potable water systems and general building plumbing. Its simple cylindrical profile and standard thread form allow it to be used where a reliable reduction in pipe diameter is required without changing the thread system or introducing additional adapters.

Advantages

The brass construction offers good mechanical strength and corrosion resistance for long service life in water installations. The reducing nipple provides a stable, leak-minimizing transition between two common pipe sizes while occupying little space. Threaded ends enable straightforward installation and removal using standard tools, and the compact design reduces the need for additional fittings in tight or confined plumbing layouts.

Suitable for

• Connecting 20 mm pipelines to 15 mm branches in residential water supply systems
• Use with potable water installations and other non-aggressive fluids
• Compact plumbing runs, repair work and retrofitting where space is limited

Key specifications

• Material: brass
• Connection type: threaded reducing nipple
• Nominal diameters: 20 mm to 15 mm
• Application: potable water and general building installations
• Design: compact, cylindrical threaded fitting

How to use

Before installation, verify that the pipe threads and sealing surfaces are clean and free from damage. Apply an appropriate thread sealant or PTFE tape to the male threads if required by the system or local codes. Hand-start the fitting and then tighten with a suitable wrench until a secure, leak-free connection is achieved; avoid excessive torque to prevent thread deformation. After installation, pressurize the system and check for leaks, retightening slightly if necessary.

Usage recommendations

Use the fitting only with compatible pipe materials and thread types. For potable water systems, use sealing materials approved for drinking water contact. Avoid exposing brass fittings to strongly corrosive agents or stray electrical currents that may accelerate corrosion. Inspect connections periodically and replace the fitting if threads show signs of wear or leakage.