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Malleable iron 45-degree elbow with FNPT threads, dark metal finish

Value Brand

Value Brand 1" Malleable Iron 45° Elbow FNPT Class 300

SKU CH-CRWM-6PF03

A 1-inch malleable iron 45-degree elbow with FNPT connections, rated Class 300 for 2000 psi at 150°F and 300 psi saturated steam

  • Directs flow at 45° for efficient piping layouts
  • Malleable iron construction meets ASME B 16.3 and B 16.4 standards
  • Class 300 rating supports 2000 psi at 150°F
  • FM Approved and UL Listed for code compliance
  • Operates from -20°F to 550°F for steam and water systems

1 Inch 45 Degree Malleable Iron Elbow

This malleable iron pipe fitting creates a 45 degree change in direction for 1 inch piping systems. It uses FNPT threaded connections and meets ASME B 16.3 and B 16.4 standards. The fitting is FM Approved and UL Listed for safety compliance.

Installers needing Class 300 threaded connections

This elbow suits plumbing and steam systems requiring a 300 psi saturated steam rating and a maximum pressure of 2000 psi at 150 degrees F. It operates across a temperature range of -20 to 550 degrees F. Projects needing a different thread type, pressure class, or pipe diameter require a different fitting.

Class 300 pressure rating

The Class 300 designation defines the fitting's pressure capability at 2000 psi for water, oil, and gas at 150 degrees F and 300 psi for saturated steam. This single specification determines if the part matches the system design pressure.

How it compares

Measured against everything we stock in Hose Fittings, Adapters & Clamps, at today’s prices. Recalculated every night.

Price $8.99
Cheaper than about 73% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameZORO SELECT

Questions about this item

How much heat can the 1" malleable iron 45° elbow handle during continuous steam service?

The fitting is rated for saturated steam pressure up to 300 psi and a temperature range of -20 to 550 degrees F, so it will withstand typical all-day steam loads without degrading.

What piping must already be in place for this FNPT Class 300 elbow to install correctly?

You need 1-inch pipe with male NPT threads matching the female NPT ends of the elbow, and the system must be designed for Class 300 pressure ratings.

Will this Class 300 elbow mate safely with older Class 150 malleable iron fittings still in the system?

No — Class 300 and Class 150 flanges or threaded fittings have different pressure ratings and thread engagement; mixing them can compromise the joint and violate ASME B16.3.

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