Zhejiang Seamless Pipe Co., Ltd.
                                                                                                           
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304 Stainless Steel Casting Thread Pipe Fitting NPT Class 150 for Plumbing and Water Systems

Price Negotiable
Price: Above 2usd/kg
MOQ: 1pc
Delivery Time: 3 weeks/container
Brand: SMLSCO
Product Description

SMLSCO Casting Pipe Fitting Series provides a comprehensive range of low-pressure threaded pipe fittings designed for general piping applications. Our product line includes elbows, tees, couplings, and other essential components for directional changes, branching, and straight connections in pipeline systems.

304 Casting Thread Pipe Fitting with NPT connection showing industrial pipe fitting components
About Casting Pipe Fittings

Stainless steel casting pipe fittings are economical connection components engineered for low- and medium-pressure piping systems. Manufactured using precision casting (sol-gel) techniques, these fittings deliver precise dimensions and smooth surface finishes at competitive price points.

Threaded Connection Advantages

Threaded connections enable easy installation, maintenance, and disassembly without requiring heat welding. These NPT standard fittings feature a 1:16 taper that creates an effective mechanical seal when tightened, making them ideal for industrial and residential piping systems worldwide.

Product Specifications
Product Name Threaded Cast Fittings
Material 304 Stainless Steel / Cast Grade CF8
Standards ASTM A351 (Material) / ISO 4144 (Dimensions)
Connection NPT Thread
Pressure Rating Class 150
Applications Plumbing, Water/Gas Systems, Drainage
304/CF8 Material Properties

304 stainless steel (cast grade CF8) provides excellent corrosion resistance in water, air, and mildly corrosive environments. Its superior mechanical properties and ease of processing make it ideal for manufacturing reliable, cost-effective low-pressure fittings.

Typical Applications

Class 150 cast fittings are essential components in commercial and residential building piping networks, widely used for connecting, diverting, and branching drinking water, fire water, circulating water, and drainage systems. Their threaded connections facilitate quick installation of complete low-pressure fluid delivery systems.

Frequently Asked Questions
Q1: What is the difference between 304 and CF8 in cast pipe fittings?
A1: CF8 is the equivalent grade of 304 stainless steel in the casting standard (ASTM A351). The chemical composition and corrosion resistance of the two are essentially the same; CF8 is the "cast equivalent" of 304.
Q2: Can NPT threaded pipe fittings be mixed with BSPT threads?
A2: No. NPT (American Standard) and BSPT (British Standard) thread angles and pitches differ. Mixing them can lead to seal failure and severe leakage. Please confirm the thread standard for your system when purchasing.
Q3: What does ISO 4144 primarily specify?
A3: ISO 4144 is a dimensional standard. It primarily defines the dimensions, tolerances, thread requirements (including NPT), test pressure, and material marking for Class 150 threaded pipe fittings.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Zhejiang Seamless Pipe Co., Ltd.
Location No. 501, Changsheng South Road, Jiaxing, Zhejiang, China
Contact Person Lee

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