Threaded Couplings

Our high-performance Stainless Steel (SS) Threaded Couplings are meticulously crafted to provide unmatched resistance to corrosion, oxidation, and pitting. Available in premium grades such as SS 304, SS 316, and SS 316L, these couplings are essential for maintaining rust-free, hygienic connections in demanding environments. They are widely utilized across the food and beverage, pharmaceutical, chemical processing, and marine industries, ensuring long-lasting structural integrity and preventing fluid contamination even under harsh operational conditions.

Key Features

✓ Precision-Machined Leak-Proof Threads

✓ High-Pressure Forged Construction

✓ Superior Corrosion Resistance (SS 304/316)

✓ Ideal for Harsh Chemicals & Hygienic Use

Product Specifications

Parameter	Details
Product Form	Full Coupling, Half Coupling, Reducing Coupling, Stainless Steel Threaded Coupling
Material of Construction	Stainless Steel (SS 304, SS 316, SS 304L, SS 316L)
Size Range	1/8" NB to 4" NB
Pressure Class	2000#, 3000#, 6000#, 9000#
Thread Types	NPT (National Pipe Thread), BSPP, BSPT (Tapered)
Manufacturing Type	Forged & CNC Machined
Design Standard	ASME B16.11, MSS-SP-83, BS 3799
Surface Treatment	Anti-rust Oil, Electro-Galvanized, Pickled & Passivated (for SS)
Testing	Thread Gauge Check, Hydrostatic Test, PMI, Visual Audit
Certification	MTC EN 10204 3.1, NACE MR0175 / MR0103 Compliance

Industrial & Stainless Steel Threaded Couplings Size Chart

Nominal Size	Schedule / Class	Type	Recommended Use
1/2" - 2"	SCH 10 / 40 / 80 / 160	Seamless / Welded	Small bore piping
2-1/2" - 8"	STD / XS / XXS	Butt weld / Threaded / Socket weld	Process piping
10" - 24"	Standard and heavy wall	Butt weld	Plant and refinery lines
Above 24"	As per drawing	Fabricated / Custom	Project requirement
Custom Requirement	Custom sizes, stainless steel grades (e.g., SS 304, SS 316, SS 316L), finishes, and drawings are available on request.