Stainless Steel Conduit Grounding Bushing | UL 514B & UL 467

Premium SS316 Grounding Bushings for Positive Conduit Grounding and Wire Protection

TSI INOX Conduits presents our premium Stainless Steel Conduit Grounding Bushing, a critical component designed to terminate threaded rigid conduit and IMC while providing a positive means of grounding the conduit system. Manufactured from premium SS316 stainless steel with an electropolished finish, our grounding bushings deliver superior corrosion resistance, hygienic cleanability, and reliable grounding continuity in demanding applications.

Grounding bushings are specifically designed for use on stainless steel rigid or threaded IMC conduit to provide a means of grounding conduit through a bushing . When screwed onto the end of a threaded conduit, the built-in grounding lug and set screw allow for secure connection of a grounding conductor, creating a ground between the lug, bushing, and conduit . Whether you are installing in food processing facilities, chemical plants, wastewater treatment facilities, or marine environments, TSI's stainless steel grounding bushings deliver the quality, durability, and code compliance your project demands.

View Specifications

Stainless Steel Conduit Grounding Bushing - UL 514B & UL 467

Key Features

Positive Grounding Capability

TSI grounding bushings provide reliable grounding for conduit systems:

Built-in grounding lug with set screw for secure ground wire connection
Easy insertion of grounding conductor for through or end connection
Fixed alignment – Set screw provides fixed alignment and positive ground continuity
Positive bond – Creates a ground between the lug, bushing, and conduit

Insulated Throat for Wire Protection

TSI grounding bushings are furnished with a built-in insulating ring that provides:

Smooth internal bore promotes easy wire pulling and reduces abrasion on conductors
Damage prevention – Prevents conductor abrasion during installation and throughout service life
High-temperature resistance – Rated up to 150°C for demanding applications
Insulation protection – Protects insulated conductors from abrasion during pulling and mechanical vibration

Superior Corrosion Resistance

Manufactured from Type 316 stainless steel to meet stringent sanitary conditions:

Superior corrosion resistance – Exceptional protection against chlorides, acids, and saline atmospheres
Molybdenum-enhanced durability – Resists pitting and crevice corrosion in aggressive environments
Sanitary properties – Suitable for food processing, pharmaceutical, and hygienic applications
Long service life – Eliminates lifecycle costs associated with corrosion-related failures

Electropolished "Brite" Finish

The electropolished finish provides:

Enhanced corrosion resistance – Smooth surface minimizes crevice corrosion and bacterial adhesion
Easy cleaning – Sanitary design suitable for CIP (clean-in-place) systems
Professional aesthetic – Bright, uniform finish that increases corrosion resistance and aesthetic appearance

Precision NPT Threading

Our grounding bushings are precision-machined with:

Male NPT threads for secure connection to female hubs and fittings
Leak-resistant joints with excellent mechanical protection
Solid grounding – Maintains conduit grounding path through the bushing

Furnished Components

Each grounding bushing is supplied complete with:

316SS threaded body – Male NPT threads for enclosure connection
Grounding lug – Integral lug for grounding conductor connection
Set screw – Provides positive ground continuity and fixed alignment
Built-in insulating throat – Protects conductors from abrasion

Key Specifications

Specification	Details
Standard	UL 514B – Conduit, Tubing, and Cable Fittings
Grounding Standard	UL 467 – Grounding and Bonding Equipment
Wire Connector Standard	UL 486A-486B – Safety for Wire Connectors
CSA Standard	CSA C22.2 No. 18.3 & No. 41 – Enclosures & Grounding Equipment
Material	Body: 316SS / Grounding Screw: 316SS
Finish	Electropolished – "Brite" Finish
Thread Type	NPT (National Pipe Taper) – Male Threads
Conduit Types	Rigid and IMC (Intermediate Metallic Conduit)
Insulated Throat	Polyetherimide (PEI) or Polypropylene
Connection Type	Threaded Male by Female
Temperature Rating	Up to 150°C
Trade Sizes	½" through 4"

Material Specifications

Component	Material	Grade
Body	Stainless Steel	316SS
Grounding Screw	Stainless Steel	316SS
Set Screw	Stainless Steel	316SS
Insulating Throat	Polyetherimide (PEI) or Polypropylene	-

Applications

TSI grounding bushings are essential for critical grounding in:

Industries Served

Food & Beverage Processing

Sanitary washdown environments

Chemical Processing Plants

Acid fumes and caustic environments

Wastewater Treatment Facilities

Moisture and chemical resistance

Marine & Offshore Installations

Saltwater and high-humidity conditions

Pharmaceutical & Cosmetics

Clean rooms and hygienic zones

Refining & Extraction Sites

Harsh industrial environments

Petrochemical

Hydrocarbon and chemical exposure

Other Corrosive Environments

Demanding industrial applications

Conduit System Functions

Providing a means of grounding conduit through a bushing
Terminating rigid conduit and IMC to boxes and enclosures
Protecting wire insulation from damage during installation and maintenance
Maintaining ground continuity in the electrical raceway system
Compliance with NEC grounding requirements – Meets code requirements for bonding and grounding

Complete System Availability

Rigid Stainless Steel Conduit (RSSC) – UL 6A certified
Stainless Steel Rigid Couplings – Standard and three-piece configurations
Stainless Steel Conduit Grounding Bushings – For positive grounding and wire protection
Stainless Steel Conduit Bushings – Standard bushings for termination
Stainless Steel Rigid Nipples – Threaded both ends, various lengths
Stainless Steel LT Conduit Connectors – Straight, 45°, and 90° configurations
Stainless Steel Watertight Hubs – Standard and grounding configurations
Stainless Steel Conduit Bodies – Complete range of configurations
Hazardous Location Products – EYS, UNY, UNF, REA, PLG, GUA Series

Why Choose TSI INOX Conduits?

Uncompromising Quality

TSI INOX Conduits manufactures every grounding bushing using premium 316 stainless steel and state-of-the-art production processes, ensuring consistent dimensions, accurate threading, and flawless electropolished finishes in every product.

Global Supply

Based in India with a worldwide export network, TSI delivers stainless steel electrical conduit solutions to projects across North America, Europe, the Middle East, and beyond.

Technical Expertise

Our engineering team provides application assistance, code compliance guidance, and custom solutions to meet your exact project specifications—from material selection to installation best practices.

Industry Specialization

TSI INOX Conduits specializes in stainless steel conduit solutions for demanding industries, including food processing, pharmaceutical, and chemical, ensuring our products meet the unique requirements of each sector.

Ordering Information

Type

Conduit Grounding Bushing

Material

316SS Stainless Steel

Finish

Electropolished / "Brite" Finish

Thread Standard

NPT (National Pipe Taper)

Conduit Types

Rigid and IMC

Trade Sizes Available

½", ¾", 1", 1¼", 1½", 2", 2½", 3", 4"

Standards

UL 514B, UL 467, UL 486A-486B, CSA C22.2 No. 18.3 & 41

Supplied Complete With

Grounding lug, set screw, and insulating throat

Stainless Steel Conduit Grounding Bushing UL 514B & UL 467