316 Stainless Steel Hex Plug Class 300 Threaded NPT Casting Fitting
Brand Name:SMLSCO
Minimum Order Quantity:1pc
Delivery Time:3 weeks/container
Payment Terms:L/C,D/A,D/P,T/T,Western Union,MoneyGram
Price:Above 2usd/kg
Supply Ability:100 ton/month
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Jiaxing Zhejiang China
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Product Details
Stainless Steel Hex Plug 316 Class 300 Threaded NPT Casting Fitting
Application of Hex Plug
Class 300-pound threaded hexagonal pipe plugs are essential components for sealing idle ports in various pipeline systems. They are widely used in water treatment facilities, chemical auxiliary pipelines, general industrial fluid handling, and building water supply and drainage systems to seal ports reserved on valves, tees, or manifolds. The NPT threaded connection provides a simple, effective, and reversible sealing solution, suitable for terminal sealing of various medium and low-pressure pipelines.
Class 300-pound threaded hexagonal pipe plugs are essential components for sealing idle ports in various pipeline systems. They are widely used in water treatment facilities, chemical auxiliary pipelines, general industrial fluid handling, and building water supply and drainage systems to seal ports reserved on valves, tees, or manifolds. The NPT threaded connection provides a simple, effective, and reversible sealing solution, suitable for terminal sealing of various medium and low-pressure pipelines.
SMLSCO Production Process
Our cast pipe fittings are produced using precision casting (sol
silica) technology to achieve excellent dimensional accuracy and
surface finish. The process begins with the creation of a wax mold,
which is then coated with multiple layers of refractory material to
form a ceramic shell. The shell is then heated, causing the wax to
melt and flow out. Next, molten stainless steel is poured into the
hollow shell. After the steel cools and solidifies, the shell is
broken off to obtain a high-precision pipe fitting blank. The blank
is then machined, tapped, and other processes to produce the final
product.
Product Name: Threaded Hex Plug
Material: Stainless Steel 316 / Casting Grade CF8M
Standard: ASTM A351 (Material) / ISO 4144 (Dimensions, ref.)
Fitting Type: Hex Head Plug, Casting
Connection: Threaded NPT
Pressure Rating: Class 300
Application: Sealing Threaded Ports, Low-Pressure Systems
Size: Available in various sizes
What are the Types of Cast Plug?
Casting plugs are used to safely block unused internal threaded
ports on pipe fittings or pipelines. The most common type is the
hexagonal head plug (Hex Plug), with its hexagonal head design
facilitating installation and removal using standard wrenches,
making it easy to operate. In addition, we also offer other types
of plugs such as square head (Square Head) and round head (Round
Head) plugs to meet different customers' tool usage habits or
specific installation space requirements.
Introduction to Thread Types
Threaded pipe fittings primarily follow two major international
thread systems: NPT and BSP. The thread angle of NPT (American
Standard Pipe Taper Thread) is 60°, relying on the thread's own
taper (1:16) for sealing. The thread angle of BSP (British Standard
Pipe Thread) is 55°, which is divided into taper threads (BSPT) for
sealing and parallel threads (BSPP). This pipe plug adopts NPT
threads, which are the most common connection form in North America
and the general industrial field.
CF8M/316 Material Properties
The use of CF8M/316 stainless steel ensures excellent durability
and corrosion resistance of the pipe plug. Compared to 304 grade,
316 material performs better in resisting chloride and general
industrial corrosion due to its molybdenum content. This is
particularly important for the pipe plug, as it effectively
prevents the threaded part from getting stuck or failing due to
corrosion, ensuring long-term sealing reliability and enabling
smooth disassembly during future maintenance or system changes.
316 Stainless Steel Hex Plug Class 300 Threaded NPT Casting Fitting
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