Threaded Plugs

Durable Threaded Plugs – Secure your pipelines with hot-dip galvanized and stainless steel plugs designed for fire protection, HVAC, and industrial systems. Engineered from ASTM A197 malleable iron, our plugs feature NPT/BSPT threads with ±0.1mm precision, ensuring leak-proof sealing under Class 150/300 pressures. Ideal for sealing unused ports in sprinkler manifolds, chemical pipelines, or steam systems. UL/FM certified, corrosion-resistant coatings (C5-M for marine use), and NSF 61 compliance for potable water. Bulk orders with custom sizes (1/8″ to 6″) and 48-hour sample delivery. Trusted by global contractors for reliability and fast project turnaround.

Threaded Pipe Plugs for Secure Pipeline Sealing

Threaded plugs (also known as pipe end caps) are essential components for sealing unused ports in fire protection systems, HVAC ducts, and industrialpipelines. Made from malleable iron with hot-dip galvanized or epoxy-coated surfaces,these plugs prevent leaks and protect threads from damage.

Key Features of Our Threaded Plugs

	ASME B16.14 & ASTM A197 Compliant Certified for fire protection and industrial piping systems
	Dual Compatibility Fits both malleable iron threaded pipes and grooved piping systems
	C5-M Coating (ISO 12944) Saltwater corrosion resistance for offshore/oil & gas applications
	Class 150/300 Pressure Rated Tested up to 750 PSI (5.17 MPa) at 100°F (38°C)

Technical Specifications

Size Range	1/8" to 4" (DN6 to DN100)
Material	ASTM A197 Malleable Iron
Thread Type	NPT, BSPP, BSPT
Coating	Hot-Dip Galvanized, Epoxy, PTFE
Pressure Rating	Class 125/150/300
Certifications	UL, NSF 61, ISO 9001