Merit Brass

150# 316 Stainless Steel Reducing Coupling Socket Weld MSS SP114

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SWM612
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  • Stainless Steel Reducing Coupling Socket Weld MSS SP114
  • Stainless Steel Socket Weld  MSS SP114 Dimensions
$8.11 - $38.50

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Description

150# 316 Stainless Steel Reducing Coupling Socket Weld MSS SP114

150# 316 Stainless Steel Socket Weld Reducing Couplings MSS SP114 are heavy-pattern fittings designed to connect two different pipe sizes in a straight run using socket weld connections. The reducing configuration provides a compact transition between nominal pipe sizes while maintaining a permanent welded connection.

Manufactured from 316 stainless steel, these fittings are produced as MSS SP-114 pattern fittings and are listed as low lead certified to NSF 61. The 316 stainless steel construction provides strong corrosion resistance for demanding commercial, industrial, water, chemical, and process piping environments.

Product Highlights

  • 150# 316 stainless steel socket weld reducing coupling
  • Designed to connect two different nominal pipe sizes
  • Socket weld connection on both ends
  • Manufactured from 316 stainless steel
  • MSS SP-114 pattern fitting
  • Low lead certified to NSF 61
  • Compact in-line reducing configuration
  • Corrosion-resistant stainless steel construction
  • Provides a permanent welded pipe connection
  • Helps prevent contamination from rust, scale, and small particles
  • Resists corrosive attack from a wide range of industrial and chemical solutions and mixtures
  • Maintains strength at elevated temperatures
  • Designed for long service life in compatible applications

Technical Specifications

Product Type Socket Weld Reducing Coupling
Pressure Class 150#
Material Stainless Steel
Material Grade 316 Stainless Steel
Pattern MSS SP-114
Connection Type Socket Weld x Socket Weld
Configuration Reducing
Certification Low Lead Certified NSF 61
Primary Function Connecting Different Pipe Sizes in a Straight Run
Primary Applications Commercial, Industrial, Water, Chemical and Process Piping Systems

Socket Weld Reducing Coupling Construction

A socket weld reducing coupling is designed with two socket ends of different nominal sizes, allowing compatible pipe of different diameters to be joined in a straight piping run.

The pipe inserts into each recessed socket before welding, creating a compact permanent connection while providing the size transition within a single fitting.

Manufactured from 316 stainless steel, these reducing couplings provide enhanced corrosion resistance and dependable service in compatible industrial, chemical, water, and process piping environments.

Why Choose a 316 Stainless Steel Reducing Coupling?

Compact Pipe Size Transition

  • Connects two different nominal pipe sizes
  • Provides the reduction within one fitting
  • Maintains a straight piping centerline
  • Socket weld connection on both ends
  • Reduces the need for multiple separate transition fittings

316 Stainless Steel Construction

  • Provides enhanced corrosion resistance
  • Well suited for demanding process environments
  • Commonly selected for chemical and chloride exposure
  • Helps resist rust and scale formation
  • Provides long service-life potential in compatible applications

Reducing Coupling vs. Standard Socket Weld Coupling

Reducing Socket Weld Coupling

  • Connects two different nominal pipe sizes
  • Socket weld connection on both ends
  • Provides an in-line pipe size transition
  • Combines coupling and reducing functions in one fitting
  • Useful where a compact welded reduction is required

Standard Socket Weld Coupling

  • Typically connects matching nominal pipe sizes
  • Socket weld connection on both ends
  • Used to extend or join straight pipe runs
  • Does not provide an integral size reduction
  • Different application from a reducing coupling

Why 316 Stainless Steel?

316 stainless steel is commonly selected for piping systems requiring increased resistance to corrosion compared with general-purpose stainless steel grades. It is particularly useful in applications involving chemicals, chlorides, process fluids, marine exposure, and other demanding environments.

The supplied product information also notes that stainless steel resists corrosive attack from hundreds of industrial and chemical solutions and mixtures, helps prevent contamination from rust and scale, and provides greater strength at elevated temperatures.

Common Applications

Commercial & General Piping

  • Water piping systems
  • Mechanical piping installations
  • Stainless steel utility piping
  • Equipment connection piping
  • Pipe size transition points

Industrial & Corrosive Service

  • Industrial process piping
  • Chemical processing systems
  • Water treatment applications
  • Process fluid piping
  • Corrosion-resistant welded piping assemblies

Installation & Selection Guidance

  • Confirm both nominal pipe sizes before ordering.
  • Verify which end requires the larger and smaller socket connection.
  • Confirm that the mating pipe outside diameters and socket dimensions are compatible with the fitting.
  • Verify system pressure and temperature requirements before installation.
  • Confirm compatibility between 316 stainless steel and the system media.
  • Use appropriate socket weld procedures for 316 stainless steel and the piping system.
  • Maintain proper pipe insertion and weld preparation according to applicable fabrication requirements.
  • Align both pipe sections before completing the welds.
  • Inspect completed welds before placing the system into service.
  • Installation should be completed in accordance with applicable piping codes, welding procedures, and project specifications.

Product Documents

Merit Brass Heavy Pattern 150# Dimensions

Review dimensional information for Merit Brass stainless steel MSS pattern fittings, including applicable socket weld reducing coupling dimensions.

View Fitting Dimensions

Common Pipe Diameters & Wall Thicknesses

Reference common pipe outside diameters and wall thicknesses when selecting compatible piping and socket weld components.

View Pipe Chart

Need Help Selecting a 316 Stainless Steel Reducing Coupling?

Our industrial PVF specialists can help review your larger and smaller pipe sizes, pressure requirements, application, media compatibility, and socket weld connection requirements before you order.

Frequently Asked Questions

What is a socket weld reducing coupling used for?

A socket weld reducing coupling is used to join two compatible pipe sections of different nominal sizes in a straight run using welded socket connections.

What pressure class is this fitting?

This fitting is listed as a 150# stainless steel socket weld reducing coupling.

What stainless steel grade is this fitting?

This reducing coupling is manufactured from 316 stainless steel.

What pattern does this fitting conform to?

The fitting is identified as an MSS SP-114 pattern stainless steel fitting.

Is this fitting low lead certified?

Yes. The supplied product information identifies these fittings as low lead certified to NSF 61.

What connection style does this coupling use?

The fitting uses socket weld connections on both ends, with each socket sized for the corresponding pipe size.

How is a reducing coupling different from a standard socket weld coupling?

A reducing coupling joins two different pipe sizes, while a standard socket weld coupling typically joins two pipe sections of the same nominal size.

Why choose 316 stainless steel?

316 stainless steel provides enhanced corrosion resistance and is commonly selected for chemical, chloride-exposed, marine, and other demanding process environments.

Can these fittings be used at elevated temperatures?

The supplied product information notes that stainless steel provides greater strength at elevated temperatures. Actual allowable pressure and temperature depend on the complete piping system and application requirements.

Where can I find fitting dimensions?

Use the Merit Brass Heavy Pattern 150# Dimensions document in the Product Documents section above.

Important Ordering Notes

  • Product is a 150# 316 stainless steel socket weld reducing coupling.
  • Manufactured from 316 stainless steel.
  • Manufactured as an MSS SP-114 pattern fitting.
  • Low lead certified to NSF 61.
  • Socket weld x socket weld reducing configuration.
  • Designed to join two different nominal pipe sizes in a straight run.
  • Confirm both nominal pipe sizes before ordering.
  • Verify which end requires the larger and smaller socket connection.
  • Verify pipe and socket dimensional compatibility before installation.
  • Confirm system pressure, temperature, and media compatibility before use.
  • Refer to the Merit Brass dimensional documentation for applicable fitting dimensions.
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