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Galvanized hex bushing, 1/2 inch MNPT to 1/4 inch FNPT

Value Brand

Value Brand 1/2" MNPT x 1/4" FNPT Galvanized Hex Bushing

SKU CH-4VCY-1MW3A

Reduces pipe size from 1/2" male to 1/4" female threads using galvanized malleable iron rated to 300 psi WOG and 150 psi steam

  • Reduces pipe diameter from 1/2" male to 1/4" female NPT thread
  • Galvanized malleable iron construction resists corrosion in water and air lines
  • Rated for 300 psi water, oil, gas at 150 °F and 150 psi saturated steam
  • Meets ASME B 16.3, B 16.4, ASTM A-197, A47, FM, NSF-61, AB1953 and UL listings
  • California Proposition 65 warning: contains chemicals known to cause cancer and reproductive harm

1/2" MNPT x 1/4" FNPT Galvanized Hex Bushing

This galvanized malleable iron hex bushing connects a 1/2 inch male NPT thread to a 1/4 inch female NPT thread. It is rated for Class 150 service and meets ASME B 16.3 and B 16.4 standards. The fitting suits plumbing and industrial piping systems requiring a durable reduction.

Pressure and temperature limits for Class 150

The bushing handles a maximum pressure of 300 psi at 150 degrees Fahrenheit water, oil, or gas. Saturated steam pressure is limited to 150 psi. These ratings define the safe operating envelope for the ASTM A 197 and ASTM A47 malleable iron material under the listed standards.

Galvanized malleable iron construction

The galvanized coating provides corrosion resistance for water supply and general piping duties. A hexagonal exterior allows installation with a standard wrench without damaging the fitting body. NSF 61 and AB1953 listings confirm compliance for drinking water contact, while FM and UL listings support fire protection use.

Highlights

  • Reduces pipe diameter from 1/2" male to 1/4" female NPT thread
  • Galvanized malleable iron construction resists corrosion in water and air lines
  • Rated for 300 psi water, oil, gas at 150 °F and 150 psi saturated steam
  • Meets ASME B 16.3, B 16.4, ASTM A-197, A47, FM, NSF-61, AB1953 and UL listings
  • California Proposition 65 warning: contains chemicals known to cause cancer and reproductive harm

Specifications

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Questions about this item

Should I pick this 1/2" MNPT x 1/4" FNPT hex bushing or a different size?

Choose this bushing when you need to reduce a 1/2 inch male NPT thread down to a 1/4 inch female NPT thread; other sizes are for different pipe combinations.

What does the 300 psi @ 150 °F WOG rating mean once installed?

It means the fitting can handle up to 300 psi water, oil or gas pressure at temperatures up to 150 °F in normal service.

Which standards cover the MNPT x FNPT threads and what do they limit?

Threads follow ASME B16.3 and B16.4, limiting dimensions and pressure class to Class 150 for galvanised malleable iron.

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