Merit Brass
Stainless Steel 3000# Threaded Reducing Coupling - 304L & 316L
- SKU:
- SS3MR
- Availability:
- Usually Ships Same Day
- Weight:
- 0.00 LBS
Description
Stainless Steel 3000# Threaded Reducing Coupling - 304L & 316L
Stainless Steel 3000# Threaded Reducing Couplings are designed to connect two different pipe sizes in a straight-line threaded piping arrangement. Featuring FIP x FIP threaded connections, these forged stainless steel fittings provide a compact transition between pipe sizes while maintaining dependable strength and corrosion resistance.
Available in 304L and 316L stainless steel, these couplings are manufactured from forged material conforming to ASME A182. Forged fitting dimensions conform to ASME B16.11, while NPT threads conform to ASME B1.20.1.
Product Highlights
- 3000# stainless steel threaded reducing coupling
- Threaded FIP x Threaded FIP connections
- Designed to connect two different threaded pipe sizes
- Compact in-line reducing configuration
- Available in 304L and 316L stainless steel grades
- Forged stainless steel material conforms to ASME A182
- Forged fitting dimensions conform to ASME B16.11
- NPT threads conform to ASME B1.20.1
- Related socket weld fittings conform to ASME B16.11
- Forged stainless unions conform to MSS SP-83
- Forged stainless outlets conform to MSS SP-97
- Forged stainless socket weld inserts conform to MSS SP-79
- Manufactured in an ISO 9001:2008 certified facility
Technical Specifications
| Product Type | Threaded Reducing Coupling |
|---|---|
| Pressure Class | 3000# |
| Available Grades | 304L & 316L Stainless Steel |
| Construction | Forged Stainless Steel |
| Connection Type | FIP x FIP |
| Primary Function | Threaded In-Line Pipe Size Reduction |
| Material Standard | ASME A182 |
| Fitting Dimensional Standard | ASME B16.11 |
| NPT Thread Standard | ASME B1.20.1 |
| Related Socket Weld Standard | ASME B16.11 |
| Related Union Standard | MSS SP-83 |
| Related Outlet Standard | MSS SP-97 |
| Related Socket Weld Insert Standard | MSS SP-79 |
| Manufacturing Quality | ISO 9001:2008 Certified Facility |
Reducing Coupling Design
A threaded reducing coupling connects two male-threaded pipes or fittings of different nominal sizes in a straight-line arrangement.
The reducing bore allows the size transition to occur within a single forged fitting, eliminating the need for a separate standard coupling and threaded reducer in applicable piping layouts.
FIP x FIP Threaded Connections
Both ends feature female NPT / FIP threaded connections for use with compatible male NPT pipe or fittings.
NPT threads conform to ASME B1.20.1. Confirm both connection sizes before ordering and use an appropriate thread-sealing method for the application and piping media.
3000# Forged Construction
These reducing couplings are manufactured from forged stainless steel conforming to ASME A182. Forged construction provides a durable fitting body for demanding threaded piping applications.
Forged fitting dimensions conform to ASME B16.11.
304L vs. 316L Stainless Steel
304L Stainless Steel
- General-purpose stainless steel grade
- Strong corrosion resistance for many industrial applications
- Commonly used in water and process piping
- Low-carbon stainless grade
316L Stainless Steel
- Enhanced corrosion resistance for more demanding environments
- Commonly selected for marine and chloride-exposed applications
- Useful in many chemical and process piping systems
- Low-carbon stainless grade
Reducing Coupling vs. Standard Coupling
Reducing Coupling
- Connects two different nominal pipe sizes
- Female threaded connection on both ends
- Provides size reduction within one fitting
- Useful for compact threaded transitions
Standard Full Coupling
- Typically connects matching nominal pipe sizes
- Designed for straight in-line connections
- Does not provide an integral size reduction
- Different application from a reducing coupling
Related Forged Fitting Standards
The broader forged stainless steel fitting family includes related components manufactured to additional standards:
- ASME B16.11 - Forged and socket weld fitting dimensions
- ASME B1.20.1 - NPT threaded connections
- MSS SP-83 - Forged stainless steel unions
- MSS SP-97 - Forged stainless steel outlets
- MSS SP-79 - Forged stainless steel socket weld inserts
Common Applications
Threaded Piping Systems
- Pipe size transitions
- Industrial process piping
- Equipment connections
- Water treatment systems
- General threaded stainless piping
Corrosion-Resistant Service
- Chemical processing
- Marine applications
- Stainless steel process systems
- Corrosive service environments
- Applications requiring 304L or 316L construction
Need Help With Forged Fitting Selection?
Confirm both female thread sizes, 3000# pressure class, 304L or 316L material grade, and mating male NPT connection requirements before ordering.
Use the product documents below to review threaded fitting dimensions and common pipe diameter and wall thickness information.
Product Documents
Stainless Steel 3M Threaded Fitting Dimensions
Use this dimensional reference to verify compatible 3000# stainless steel threaded fitting sizes and dimensions.
- Dimensional reference for 3M threaded fittings
- Useful for confirming both reducing coupling sizes
- Supports FIP / NPT threaded fitting selection
- Recommended for checking compatibility before assembly
Pipe Chart: Common Diameters & Wall Thicknesses
Use this pipe chart to confirm common nominal pipe sizes, outside diameters, and wall thicknesses when working with compatible forged piping components.
- Common pipe outside diameters
- Reference wall thickness information
- Useful for confirming piping system dimensions
- Recommended before ordering or installation
Frequently Asked Questions
What is a threaded reducing coupling?
A threaded reducing coupling joins two male-threaded pipes or fittings of different nominal sizes in a straight-line connection.
What connection type does this fitting use?
This fitting uses female threaded FIP x FIP connections.
What pressure class is this reducing coupling?
This is a 3000# forged stainless steel fitting.
What stainless steel grades are available?
The reducing coupling is available in 304L and 316L stainless steel.
What material standard applies?
The forged stainless steel material conforms to ASME A182.
What dimensional standard applies?
The forged stainless steel fitting dimensions conform to ASME B16.11.
What standard applies to the threads?
NPT threads conform to ASME B1.20.1.
Why use a reducing coupling instead of a standard coupling?
A reducing coupling provides two different connection sizes within one fitting, while a standard coupling is generally used to connect matching nominal pipe sizes.
Where can I find threaded fitting dimensions?
Use the Stainless Steel 3M Threaded Fitting Dimensions PDF in the Product Documents section above.
How can I confirm pipe outside diameter and wall thickness?
Use the Pipe Chart: Common Diameters & Wall Thicknesses PDF in the Product Documents section above.
Important Ordering Notes
- Product type: Stainless Steel 3000# Threaded Reducing Coupling.
- Connection type: Threaded FIP x Threaded FIP.
- Designed to connect two different nominal threaded pipe sizes.
- Available in 304L and 316L stainless steel.
- Forged stainless steel material conforms to ASME A182.
- Forged stainless steel fitting dimensions conform to ASME B16.11.
- NPT threads conform to ASME B1.20.1.
- Related socket weld fittings conform to ASME B16.11.
- Related forged stainless unions conform to MSS SP-83.
- Related forged stainless outlets conform to MSS SP-97.
- Related forged stainless socket weld inserts conform to MSS SP-79.
- Manufactured in an ISO 9001:2008 certified facility.
- Confirm both female thread sizes, pressure requirements, media compatibility, and material grade before ordering.
- Use thread sealant appropriate for the application.
- Refer to both Product Documents for dimensional and pipe-size information.
