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Black forged steel union fitting, silver finish, 1-1/4 inch FNPT connection

Value Brand

Value Brand 1MND3 Black Forged Steel Union Class 3000

SKU CH-H6FT-8QY90

Black forged steel union connects 1-1/4 inch FNPT pipe, rated 3000 psi at 72°F per ANSI B1.20.1 and ASME B16.11

  • Rated for 3000 psi maximum working pressure at 72°F
  • Black forged steel construction meets ASTM A105 and SA105 standards
  • Female NPT threads comply with ANSI B1.20.1 specification
  • Class 3000 forged fitting follows ASME B16.11 dimensional requirements
  • 1-1/4 inch pipe size suits high-pressure plumbing applications

1-1/4 Inch Black Forged Steel Union

This union connects two sections of pipe with a 1-1/4 inch nominal bore using female National Pipe Thread ends. It is forged from black steel to ASTM A105 and rated for Class 3000 service. The fitting suits industrial piping systems that require a removable joint rated for high pressure.

Class 3000 pressure rating at 72 degrees F

The single specification that decides fit is the 3000 psi maximum working pressure at 72 degrees Fahrenheit. Systems operating above this pressure or at significantly higher temperatures need a higher-class fitting. Buyers who need a higher pressure rating cannot use this union.

Meets ANSI B1.20.1, ASME B16.11 and SA105 standards

Compliance with these standards confirms thread dimensions, forging quality and material traceability for code-regulated installations. Inspectors and engineers can accept the fitting without additional material verification. Projects that do not require documented standard compliance gain no extra benefit from the certifications.

How it compares

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

Price $20.99
Pricier than about 55% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameZORO SELECT

Questions about this item

What does the 3000 psi rating mean once the union is installed in a real system?

The 3000 psi rating is the maximum working pressure at 72 degrees Fahrenheit; at higher temperatures the allowable pressure drops according to the applicable ASME code.

The union uses FNPT threads — what standard governs those threads and what does it limit?

The FNPT threads follow ANSI B 1.20.1, which defines the thread form, taper and engagement length that determine sealing and pressure capability.

What pipe size and schedule does this forged-steel union need to fit correctly?

It is made for 1-1/4 inch pipe and Class 3000 fittings per ASME B 16.11 and ASTM A105 material requirements.

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