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Quality Water Truck Systems, Tanks & Parts Since 1947
Quality Water Truck Systems, Tanks & Parts Since 1947
Tank Flange 1/4", Series 300, Phoenix Forge (THRFLGP0025) - UnitedBuilt Equipment
Tank Flange 1/4", Series 300, Phoenix Forge (THRFLGP0025) - UnitedBuilt Equipment
Tank Flange 1/4", Series 300, Phoenix Forge (THRFLGP0025) - UnitedBuilt Equipment
Tank Flange 1/4", Series 300, Phoenix Forge (THRFLGP0025) - UnitedBuilt Equipment

Tank Flange, 1/4 Inch Female NPT, Phoenix Forge 301

SKU 0001264
Brand Phoenix Forge
Availability:
7 in stock | Available on backorder
$0.00 - $0.00
$0.00
$5.74
$5.74 - $5.74
$5.74

Product Images

Images are for representation only and may differ from the actual product.

Questions about this product?

The Phoenix Forge 301 Series 300 tank flange provides a 1/4-inch female NPT connection for a fabricated tank or cylinder. Its boiler-flange profile combines a forged carbon-steel body with a locating pilot for weld-in installation.

This is a weld-in threaded fitting, not a bolted pipe flange. Select it by the pipe connection and the complete mounting profile. The nominal pipe size does not describe the flange outside diameter or the opening needed to accommodate its pilot.

A piloted connection for tank fabrication

The lower pilot fits into the prepared opening, helping position the fitting before welding. The surrounding flange provides the attachment profile, while the internal thread accepts a matching male NPT component. Check the complete fit before preparing the tank opening or completing the weld.

Feature Benefit
Female NPT connection Accepts a matching 1/4-inch male NPT fitting or pipe connection.
Locating pilot Helps position the flange in the prepared tank opening.
Weld-in profile Adds a threaded connection directly to a fabricated tank or cylinder without a bolted mating flange.

Technical specifications

Specification Details
Manufacturer Phoenix Forge
Manufacturer part number 301
Design series 300; boiler flange with pilot
Connection 1/4-inch female NPT
Material Forged carbon steel
Installation Weld-in
Outside diameter (A) 1.312 inches
Top body diameter (B) 0.812 inches
Overall height (C) 0.406 inches
Outer flange edge thickness (D) 0.094 inches
Pilot diameter (E) 0.875 inches
Pilot height (F) 0.125 inches

Phoenix Forge Series 300 flange cross-section showing dimensions A through F

Dimensions are nominal and subject to manufacturing tolerances. Use the pilot diameter together with the required fabrication clearance; do not treat it as an automatic hole-cutting dimension.

Before ordering

Check What to confirm
Thread match Confirm a 1/4-inch NPT mating connection. NPTF and other special threads are different selections.
Tank opening and clearance Check pilot diameter and height, overall height, outside diameter and surrounding access.
Welding and tank material Have the fabricator verify material compatibility, joint design and the required welding procedure.
Pressure and temperature Confirm the application requirements for the fitting, attachment weld and complete vessel. Series 300 is a design series, not a pressure rating or stainless-steel grade.
Boiler or pressure-vessel use Confirm the required design approvals and material documentation before installation; the flange name alone does not establish suitability for a finished vessel.

Need help selecting the correct tank flange? Contact UnitedBuilt through online chat, email parts@unitedbuilt.com, or call 602-253-7750 with your connection size, tank opening dimensions and application.