Merit Brass
150# Stainless Steel Reducing Coupling ISO 49
- SKU:
- K412-K612
- Availability:
- Usually Ships Same Day
- Weight:
- 0.00 LBS
Description
150# Stainless Steel Reducing Coupling ISO 49
150# Stainless Steel Reducing Couplings are standard-pattern cast fittings designed to connect two different threaded pipe sizes in a straight-line piping arrangement. The reducing configuration provides a compact transition between nominal pipe sizes while maintaining the corrosion resistance and installation advantages of stainless steel.
The fitting family conforms to AISI 304 or 316 stainless steel material requirements and ISO 49-1983 (E) dimensional requirements. These fittings are also listed as low lead certified to NSF/ANSI 61.
Product Highlights
- 150# stainless steel reducing coupling
- Standard-pattern cast fitting design
- Designed to connect two different threaded pipe sizes
- Compact in-line reducing configuration
- Available in AISI 304 or 316 stainless steel material
- Low lead certified to NSF/ANSI 61
- Dimensions conform to ISO 49-1983 (E)
- Corrosion-resistant stainless steel construction
- Designed for straightforward installation
- Helps prevent contamination from rust, scale, and small particles
- Resists corrosive attack from many industrial and chemical solutions and mixtures
- Provides strength at elevated temperatures
- Long service-life potential in compatible applications
Technical Specifications
| Product Type | Reducing Coupling |
|---|---|
| Pressure Class | 150# |
| Material | Stainless Steel |
| Material Grades | AISI 304 or 316 |
| Dimensional Standard | ISO 49-1983 (E) |
| Construction Style | Standard Pattern Cast Fitting |
| Primary Function | Threaded In-Line Pipe Size Reduction |
| Certification | Low Lead Certified NSF/ANSI 61 |
Reducing Coupling Design
A reducing coupling connects two compatible threaded pipe sections of different nominal sizes along the same centerline.
The reducing bore allows the size transition to occur within a single fitting, helping simplify piping layouts where a direct threaded reduction is required.
Stainless Steel Construction
The stainless steel construction provides corrosion resistance while helping prevent contamination associated with rust, scale, and small particles that can occur with some other metallic piping materials.
The supplied product information states that the material resists corrosive attack from hundreds of industrial and chemical solutions and mixtures and provides greater strength at elevated temperatures.
NSF/ANSI 61 Low Lead Certification
This fitting is listed as low lead certified to NSF/ANSI 61, supporting use in compatible potable-water applications where applicable code and system requirements are met.
Always confirm complete system requirements, local codes, operating conditions, and media compatibility before installation.
ISO 49 Standard Pattern
Dimensions conform to ISO 49-1983 (E), providing dimensional consistency for compatible standard-pattern cast stainless steel fittings.
Use the manufacturer dimensional document below to confirm reducing coupling dimensions before ordering or installation.
Reducing Coupling vs. Standard Coupling
Reducing Coupling
- Connects two different nominal pipe sizes
- Provides size reduction within one fitting
- Useful for compact threaded transitions
- Maintains a straight-line piping arrangement
Standard Coupling
- Typically connects matching nominal pipe sizes
- Used to extend straight pipe runs
- Does not provide an integral size reduction
- Different function from a reducing coupling
Common Applications
Commercial & General Piping
- Water piping systems
- Commercial plumbing
- General process piping
- Pipe size transitions
- Threaded stainless steel piping assemblies
Industrial & Corrosive Service
- Industrial process piping
- Chemical handling systems
- Corrosion-resistant piping applications
- Elevated-temperature service where compatible
- Applications where rust and scale contamination are undesirable
Need Help With Fitting Selection?
Confirm both nominal pipe sizes, 150# pressure class, required stainless steel grade, threaded connection requirements, operating temperature, media compatibility, and applicable system requirements before ordering.
Use the product documents below to review standard-pattern cast fitting dimensions and common pipe diameter and wall thickness information.
Product Documents
Merit Stainless Steel Standard Pattern Cast Fittings
Use this manufacturer reference for dimensional and product information covering Merit standard-pattern cast stainless steel fittings.
- Standard-pattern cast fitting information
- Useful for confirming reducing coupling dimensions
- Supports ISO 49 fitting selection
- Recommended for dimensional review before ordering
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 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 reducing coupling used for?
A reducing coupling is used to connect two compatible threaded pipe sections of different nominal sizes in a straight-line arrangement.
What pressure class is this reducing coupling?
This fitting is listed as a 150# stainless steel reducing coupling.
What stainless steel grades are used?
The supplied product information states that the fitting family conforms to AISI 304 or 316 stainless steel material requirements.
What dimensional standard applies?
The fitting dimensions conform to ISO 49-1983 (E).
Is this fitting low lead certified?
Yes. The supplied product information lists the fitting as low lead certified to NSF/ANSI 61.
How is a reducing coupling different from a standard coupling?
A reducing coupling connects two different nominal pipe sizes, while a standard coupling generally connects matching pipe sizes.
Why use stainless steel for this fitting?
Stainless steel provides corrosion resistance and helps avoid contamination associated with rust and scale in compatible applications.
Can this fitting be used in corrosive environments?
The supplied product information states that the stainless steel material resists corrosive attack from hundreds of industrial and chemical solutions and mixtures. Actual compatibility should be confirmed for the specific media and operating conditions.
Where can I find fitting dimensions?
Use the Merit Stainless Steel Standard Pattern Cast Fittings PDF in the Product Documents section above.
How can I confirm common pipe dimensions?
Use the Pipe Chart: Common Diameters & Wall Thicknesses PDF in the Product Documents section above.
Important Ordering Notes
- Product type: 150# Stainless Steel Reducing Coupling.
- Designed to connect two different nominal threaded pipe sizes.
- Low lead certified to NSF/ANSI 61.
- Material conforms to AISI 304 or 316 requirements.
- Dimensions conform to ISO 49-1983 (E).
- Stainless steel construction provides corrosion resistance.
- Confirm both nominal sizes, material grade, system pressure, operating temperature, and media compatibility before ordering.
- Verify applicable potable-water and local-code requirements when used in drinking-water systems.
- Refer to both Product Documents for fitting and pipe dimensional information.
