TSI INOX Conduits presents our premium Stainless Steel Rigid Compression Coupling, a high-performance threadless fitting engineered to join two lengths of rigid metal conduit (RMC) and IMC in demanding applications. Manufactured from premium SS316 stainless steel with a vibration polished finish, our compression couplings deliver superior corrosion resistance, concrete-tight sealing, and reliable mechanical connections for tough industrial and standard applications.
Compression couplings are used to join sections of heavy-wall RMC and medium-wall IMC metal conduit together . Unlike threaded couplings, compression couplings position onto the ends of two lengths of conduit and have a gland that tightens with a wrench to lock securely in place . These fittings are commonly used outdoors when a concrete-tight fitting is needed . Whether you are installing in food processing facilities, chemical plants, wastewater treatment facilities, or marine environments, TSI's stainless steel rigid compression couplings deliver the quality, durability, and code compliance your project demands.
TSI rigid compression couplings are designed to:
TSI compression couplings provide:
Manufactured from Type 316 stainless steel to meet stringent sanitary conditions, our compression couplings provide:
The vibration polished finish provides:
The inclusion of plastic and stainless ferrules provides:
TSI compression couplings are:
| Specification | Details |
|---|---|
| Standard | UL 514B – Conduit, Tubing, and Cable Fittings |
| NEMA Standard | FB-1 – Fittings, Cast Metal Boxes, and Conduit Bodies |
| Material | 316 Stainless Steel |
| Finish | Vibration Polished / Polished Silver |
| Conduit Types | RMC (Rigid Metal Conduit) and IMC (Intermediate Metallic Conduit) |
| Construction | Concrete-Tight |
| Ferrule Type | Plastic and Stainless Steel Ferrules |
| Connection Type | Compression |
| NEMA Rating | Type 4X – Corrosion-Resistant Enclosures |
| Trade Sizes | ½" through 4" |
| Component | Material | Grade |
|---|---|---|
| Coupling Body | Stainless Steel | 316SS |
| Gland Nut | Stainless Steel | 316SS |
| Ferrule | Stainless Steel & Plastic | 316SS |
TSI rigid compression couplings are essential for:
Sanitary washdown environments
Acid fumes and caustic environments
Moisture and chemical resistance
Saltwater and high-humidity conditions
Clean rooms and hygienic zones
Harsh industrial environments
Hydrocarbon and chemical exposure
Where concrete-tight, weatherproof connections are required
TSI INOX Conduits provides a comprehensive stainless steel conduit system:
TSI INOX Conduits manufactures every rigid compression coupling using premium 316 stainless steel and state-of-the-art production processes, ensuring consistent dimensions, accurate threading, and flawless vibration polished finishes in every product.
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.
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.
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.
Rigid Compression Coupling (Threadless)
316 Stainless Steel
Vibration Polished / Polished Silver
RMC and IMC
½" through 4"
UL 514B Listed, NEMA FB-1, Federal Spec A-A-50553
Type 4X
Contact us today to discuss your requirements, request samples, or receive a competitive quote for bulk rigid compression couplings.
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