Overview
The Reducing Adapter Nipple is a grooved piping component designed to connect pipes or fittings of different diameters while also adapting connection types within a grooved system. It integrates size reduction and connection transition into a single compact part, helping simplify pipeline layouts and improve installation efficiency.
Product Description
A Reducing Adapter Nipple typically features a grooved end on one side and a reduced plain-end or threaded/grooved transition on the other, depending on system requirements. It allows a smooth change in pipe diameter while maintaining secure mechanical connection. By minimizing the number of fittings required, this adapter nipple reduces potential leak points and streamlines system assembly, especially in space-restricted installations.
| Sizes: | DN40–DN250 (1½″–10″) threaded outlet |
| Materials: | ASTM A536,GRADE 65-45-12,QT450-10 |
| Threads: | ASME B1.20.1,ISO 7-1,BS21,BSPT,NPT,GB 7306 |
| Surface Treatment: | Electrophoretic painted,Electroplated, Epoxy, Hot-dip Galvanized |
 |
Key Features
Combines diameter reduction and connection adaptation in one fitting
Compact structure ideal for tight installation spaces
Grooved connection ensures fast and reliable assembly
Reduces the need for additional reducers or couplings
Smooth internal profile supports stable fluid flow
Compatible with standard grooved piping systems
Functions & Applications
Connects pipelines or fittings with different nominal diameters
Adapts grooved connections to reduced pipe sizes
Simplifies system design by reducing fitting quantity
Enhances installation efficiency and system reliability
Supports quick disassembly for maintenance or modification
Reducing Adapter Nipples are widely used in:
Fire protection and sprinkler systems
HVAC and chilled water pipelines
Industrial water and utility piping
Mechanical rooms and pump connections
Retrofit and pipeline modification projects
They are especially suitable for applications where size transition and connection adaptation are required in a compact area.
Main production process
Installation Instruction For Threaded &Grooved Mechanical Tee
  | 
| 
| 
|
|
|
|
1.Take out the
Rigid &Flexible Coupling
Clean the gasket sealing surface
within 16mm of the hole and visually
inspect the sealing surface for defects
that may prevent proper sealing of the
gasket.Don't drill the hole on weld
line. | 2.Split the
Rigid &Flexible Coupling
If any burrs or slug exists at the pipe
hole,please remove them before
assembly,to protect the gasket and
avoid leakage. | 3.Pipe preparation
Insert the gasket into outlet housing making sure the tab in the gasket line up with the tab recesses in the housing.Align outlet housing over the pipe hole making sure that the locating collar is in the pipe hole.
| 4.Lubricate gasket
Align the strap around the pipe,inser the bolts and tighten the nuts finger
tight. |
 |
|
|
|
|
|
|
5.Gasket installation
Alternatively and evenly tighten the nuts to the specified bolt torque. | 6.Housing installation
There should be even gaps on two
sides between upper and lower
housings. |
|
|
FAQ
Q1: What is the main purpose of a reducing adapter nipple?
A: It provides both diameter reduction and connection adaptation within a grooved piping system.
Q2: How does it differ from a standard grooved reducer?
A: A reducing adapter nipple not only changes pipe size but also adapts the connection type or configuration, often in a more compact form.
Q3: Does installation require welding or special tools?
A: No. Installation is mechanical, using standard grooved coupling methods.
Q4: Is it suitable for high-pressure systems?
A: Yes, it is designed for use within the working pressure limits of standard grooved piping systems.
Q5: Can it be used in retrofit projects?
A: Absolutely. Its compact and multifunctional design makes it ideal for upgrades and system modifications.
