316 Stainless Steel Class 150 NPT Threaded Reducing Bushing with
Hex Head
316 Stainless Steel Casting Reducing Bushing Class 150 NPT
Product Specifications
| Attribute | Specification |
|---|
| Product Name | Threaded Reducing Bushing |
| Material | Stainless Steel 316 / Casting Grade CF8M |
| Standard | ASTM A351 (Material) / MSS-SP-114 (Dimensions, ref.) |
| Fitting Type | Reducing Bushing, Hex Head |
| Connection | Male x Female Threaded NPT |
| Pressure Rating | Class 150 |
| Application | Piping Systems, Instrumentation, Adapting Ports |
| Size | Available in various reducing sizes (e.g., 1" x 3/4") |
Product Introduction
A stainless steel bushing, also known as a male/female bushing, is
a cleverly designed pipe fitting. It features both male and female
threads and is designed to reduce the diameter of a pipe within an
existing female-threaded port. For example, it can convert a DN50
port to a DN25 port.
Compared to using a "reducing coupling + union" combination, a
single bushing can achieve a diameter reduction, providing an ideal
solution for saving installation space, reducing costs, and
minimizing leaks in pipeline connections.
Material Properties
The 316/CF8M stainless steel material provides the bushing with
enhanced corrosion resistance. The addition of molybdenum enhances
its resistance to chlorides and various chemical media compared to
304 stainless steel.
It is suitable for applications requiring more stringent conditions
than standard, such as mild chemical processes, humid coastal air,
or water treatment systems, ensuring the long-term integrity and
reliability of threaded connections.
Application Scenarios
- Connecting small-diameter instrument or sampling branches from main
pipe headers
- Matching outlet port size of valves and pumps to smaller downstream
pipes
- Adjusting and adapting to different threaded port sizes during
equipment assembly and maintenance
Note on Materials & Standards
According to ASTM A351, the official designation for cast 316
stainless steel is CF8M. While the chemical compositions of the two
differ slightly, the industry generally accepts that materials
designated "316" meet the performance requirements of CF8M.
Similarly, while SMLSCO product dimensions reference standards such
as MSS-SP-114, they are primarily manufactured to widely accepted
industry specifications to ensure market compatibility and
practicality.
Frequently Asked Questions
Q1: What is the difference between this NPT-threaded 316 reducer
bushing and a reducer coupling?
A1: A reducer coupling has female threads on both ends, whereas
this reducer bushing features a compact hex head design with male
threads on the outside and female threads on the inside. It can be
screwed directly into a female threaded port to achieve a size
transition, saving more space than a coupling in pipeline
installations with limited space and effectively reducing potential
leak points.
Q2: The product description mentions compliance with the MSS-SP-114
standard. How does SMLSCO ensure the dimensions and quality of this
reducer sleeve?
A2: MSS-SP-114 is a specialized dimensional and quality standard
for stainless steel cast threaded pipe fittings. All our relevant
manufacturing facilities are ISO and PED certified, and we conduct
100% rigorous quality inspections prior to shipment to ensure that
product dimensional accuracy and pressure-bearing capacity fully
meet the standards.
Q3: What are the advantages of 316/CF8M reducer sleeves when used
in marine or chemical processing systems?
A3: They offer superior resistance to chloride ion and chemical
medium corrosion, providing a longer service life and significantly
reducing maintenance costs.
Q4: If we urgently need this batch of 316 reducer sleeves for
equipment assembly or on-site maintenance, can you guarantee fast
delivery?
A4: SMLSCO specializes in rapid delivery for industrial piping
systems. We maintain a 10,000-square-meter indoor warehouse with
ample stock of standard specifications year-round, enabling us to
shorten lead times to within 2 weeks. Our professional team
responds to your purchase orders within 15 hours.
