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Square head malleable iron pipe plug 3/8 MNPT class 150

Value Brand

Value Brand Square Head Plug 3/8" MNPT Malleable 150 Class

SKU CH-SVB8-XBZFA

Malleable iron square-head plug with 3/8 inch male NPT threads, rated Class 150 for service from -20 to 366 degrees F

  • Malleable iron construction withstands 150 class pressure rating
  • Male NPT threads seal pipe ends without separate sealant
  • Operates reliably from minus 20 to 366 degrees Fahrenheit
  • Cored plug design reduces weight while maintaining strength
  • Square head allows easy installation with standard wrench

Square Head Plug 3/8" MNPT

This malleable iron square head plug provides a 3/8 inch male NPT connection for sealing pipe ends. It is rated for Class 150 service and operates between minus 20 degrees and 366 degrees Fahrenheit. The cored construction reduces weight while maintaining thread integrity for reliable closure.

Suitable for standard plumbing

Installers needing a basic threaded closure for water, air or oil lines at moderate temperatures will find this plug fits the requirement. It is not intended for high-pressure systems exceeding the Class 150 rating or for applications demanding integrated sealing compounds or gaskets.

Class 150 pressure rating

The plug comfortably handles typical residential and light commercial pressures within its 150 class designation across the full minus 20 to 366 degree Fahrenheit span. It runs out of headroom when system pressures demand a higher class fitting or when media compatibility requires a different material specification.

Highlights

  • Malleable iron construction withstands 150 class pressure rating
  • Male NPT threads seal pipe ends without separate sealant
  • Operates reliably from minus 20 to 366 degrees Fahrenheit
  • Cored plug design reduces weight while maintaining strength
  • Square head allows easy installation with standard wrench

Specifications

BrandZORO SELECT

Questions about this item

What pipe thread size must my fitting have to accept this 3/8" MNPT square head plug?

Your fitting needs a matching 3/8" female NPT thread to accept the male NPT threads on this plug.

Will this Class 150 malleable iron plug handle the same pressure as my older Class 150 fittings?

Yes, the Class 150 rating means it shares the same pressure-temperature limits as other Class 150 components in your system.

How can I confirm the plug is sealed properly after I install it?

Pressurise the line and check the 3/8" NPT joint for leaks; the cored malleable iron body and male threads should hold without weeping.

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