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Zhejiang Seamless Pipe Co., Ltd.

  • China,Jiaxing ,Zhejiang
  • Verified Supplier
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China 316 Stainless Steel Hex Plug Class 300 Threaded NPT Casting Fitting
China 316 Stainless Steel Hex Plug Class 300 Threaded NPT Casting Fitting

  1. China 316 Stainless Steel Hex Plug Class 300 Threaded NPT Casting Fitting

316 Stainless Steel Hex Plug Class 300 Threaded NPT Casting Fitting

  1. MOQ: 1pc
  2. Price: Above 2usd/kg
  3. Get Latest Price
Payment Terms L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability 100 ton/month
Delivery Time 3 weeks/container
Packaging Details Plywood case
Material 316
Product Name Hex Plug
Brand SMLSCO
Price Term FOB/CFR/CIF,etc
Payment T/T, L/C or as negotiation
Package Wooden Box
Brand Name SMLSCO
Certification
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms L/C,D/A,D/P,T/T,Western Union,MoneyGram Supply Ability 100 ton/month
Delivery Time 3 weeks/container Packaging Details Plywood case
Material 316 Product Name Hex Plug
Brand SMLSCO Price Term FOB/CFR/CIF,etc
Payment T/T, L/C or as negotiation Package Wooden Box
Brand Name SMLSCO Certification
Place of Origin China
High Light 316 Stainless Steel Hex PlugSS Hex Plug Class 300Threaded NPT Casting Fitting
Stainless Steel Hex Plug 316 Class 300 Threaded NPT Casting Fitting
Product Specifications
Attribute Value
Material 316
Brand SMLSCO
Price Term FOB/CFR/CIF, etc
Payment T/T, L/C or as negotiation
Package Wooden Box
Product Description

The Stainless Steel Hex Plug 316 Class 300 Threaded NPT Casting Fitting is an essential component for sealing idle ports in various pipeline systems.

Applications

Class 300-pound threaded hexagonal pipe plugs are widely used in:

  • Water treatment facilities
  • Chemical auxiliary pipelines
  • General industrial fluid handling
  • Building water supply and drainage systems

The NPT threaded connection provides a simple, effective, and reversible sealing solution, suitable for terminal sealing of various medium and low-pressure pipelines.

Production Process

Our cast pipe fittings are produced using precision casting (sol silica) technology to achieve excellent dimensional accuracy and surface finish:

  1. Creation of wax mold
  2. Coating with multiple layers of refractory material
  3. Heating to melt wax and form hollow shell
  4. Pouring molten stainless steel
  5. Cooling and solidification
  6. Machining and tapping to produce final product
Technical Specifications
  • 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
Stainless Steel Hex Plug 316 Class 300 Threaded NPT Casting Fitting
Types of Cast Plugs

Casting plugs are used to safely block unused internal threaded ports on pipe fittings or pipelines. The most common types include:

  • Hexagonal Head Plug (Hex Plug): Most common design facilitating installation and removal using standard wrenches
  • Square Head Plug: Alternative design for specific tool requirements
  • Round Head Plug: For specific installation space requirements
Thread Types

Threaded pipe fittings primarily follow two major international thread systems:

  • NPT (American Standard Pipe Taper Thread): 60° thread angle, 1:16 taper for sealing (used in this product)
  • BSP (British Standard Pipe Thread): 55° thread angle, available as taper (BSPT) or parallel (BSPP)
CF8M/316 Material Properties

The use of CF8M/316 stainless steel ensures excellent durability and corrosion resistance:

  • Superior to 304 grade in resisting chloride and general industrial corrosion
  • Contains molybdenum for enhanced corrosion resistance
  • Prevents thread sticking or failure due to corrosion
  • Ensures long-term sealing reliability
  • Enables smooth disassembly during maintenance

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Exporter

  • Year Established:

    2006

  • Employee Number:

    100~150

  • Ecer Certification:

    Verified Supplier

Zhejiang seamless pipe co.,ltd. (SMLSCO) is a specialized stainless steel piping systems provider with 19 years of industry experience. We began by supplying cost-effective stainless steel seamless pipes but for now, Smlsco is more than pipes. With 19 years of growth, we have establis... Zhejiang seamless pipe co.,ltd. (SMLSCO) is a specialized stainless steel piping systems provider with 19 years of industry experience. We began by supplying cost-effective stainless steel seamless pipes but for now, Smlsco is more than pipes. With 19 years of growth, we have establis...

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Get in touch with us

  • Reach Us
  • Zhejiang Seamless Pipe Co., Ltd.
  • No. 501, Changsheng South Road, Jiaxing, Zhejiang, China
  • https://www.smlspipestock.com/

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