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Fol-Da-Tank Flange (Rol-La-Tank) Fol-Da-Tank Flange (Rol-La-Tank)
fol-da-tank|SKU:fol-da-tank-flange

Fol-Da-Tank Flange: Al-Mag Alloy Construction with Multiple Thread Configurations

Rapid Drain Flanges Built for Fol-Da-Tank Systems

Quick drain capability — Side coupling empties SST tanks fast
Al-mag alloy build — Top-quality castings resist wear
Heat sealed reinforcement — Patches secure flange to tank wall
Multiple thread options — NST, NPT, BSP, STORZ, CAM available
Framed tank compatible — Mounts for low-flow strainer drafting

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Fol-Da-Tank Flange
Fol-Da-Tank Flange

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In the box

  • 1x Fol-Da-Tank Flange (selected size, thread type, and orientation)
Fol-Da-Tank Flange
Fol-Da-Tank Flange: Al-Mag Alloy Construction with Multiple Thread Configurations

Rapid Drain Flanges Built for Fol-Da-Tank Systems

Every Fol-Da-Tank Flange in our catalog is vetted for real-world durability and precision craftsmanship. Machined from high-quality al-mag alloy, these flanges deliver top-quality castings and threads that hold up under repeated use. They feature reinforced heat-sealed patches on self-supporting tanks for a secure, leak-free connection, and enable rapid water discharge through the side coupling. Available in sizes from 1.5 to 6 inches with multiple thread types and orientations, this commercial-grade flange is a smart investment for any fleet operation running Fol-Da-Tank self-supporting or Quick-Assemble systems.

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Al-Mag Alloy Build
5 Thread Types
Heat-Sealed Patches
1.5" to 6" Sizes
1.5" – 6"
Size Range
5
Thread Type Options
2
Orientation Options
Al-Mag Alloy Castings Eliminate Premature Flange Failure

Al-Mag Alloy Castings Eliminate Premature Flange Failure

Fleet operations can't afford a failed flange during a critical drain. The unique al-mag alloy construction in these Fol-Da-Tank Flanges delivers top-quality castings and precision threads that hold up under repeated use. Unlike standard fittings that crack or strip under pressure, this alloy resists corrosion and mechanical wear. Every flange in our catalog is curated and vetted for build quality before it earns a listing. On self-supporting tanks, reinforced heat sealed patches anchor the aluminum flange directly to the tank wall, eliminating the weak points that plague inferior fittings. When your operation depends on reliable water evacuation, this is the commercial-grade connection that holds.

Six Thread Configurations Match Your Existing Pump Setup

Six Thread Configurations Match Your Existing Pump Setup

Choosing the wrong thread type means adapters, leaks, and wasted time on-site. These flanges are available in five thread types — NST, NPT, BSP, STORZ, and CAM — across eight sizes from 1.5 inches to 6 inches, with male or female orientation. That range covers the configurations used on most self-supporting and Quick-Assemble series tanks in the field. Instead of forcing your equipment to fit a limited selection, you select the exact specification your operation requires. This eliminates guesswork and ensures a secure, threaded connection every time you drain or draft.

Side Wall Mounting Enables Low-Flow Strainer Drafting

Side Wall Mounting Enables Low-Flow Strainer Drafting

On FOL-DA-TANK framed tanks, these flanges mount directly to the side walls for a specific purpose: drafting water through a Low-Flow Strainer. This setup gives you a controlled draw point that avoids bottom sediment and debris, which is critical when supplying clean water to pumps or filtration systems. The same flange also serves as the primary drain point on self-supporting tanks, allowing rapid water evacuation when the tank is no longer in use. One component, two operational functions — drain and draft — both accessed through a reinforced, heat-sealed connection point.

Compatibility Check

Confirm your setup matches these requirements before ordering.

  • Your tank is a Fol-Da-Tank self-supporting or Quick-Assemble series unit
  • Your tank sidewall accepts flange mounting with heat-sealed reinforcement patches
  • Your required thread size falls between 1.5 and 6 inches

Common Applications

Fleet and fire departments rely on these flanges for fast, dependable water discharge.

Fire Department Drafting
Rapid Tank Drainage
Low-Flow Strainer Mounting
Framed Tank Side Wall Install

Full specifications

At a glance

Dimensions
1.5 inches, 2 inches, 2.5 inches, 3 inches, 4 inches, 4.5 inches, 5 inches, 6 inches
Warranty
See product page
Full specifications5 data points across 4 categories

Dimensions

Size Options1.5 inches, 2 inches, 2.5 inches, 3 inches, 4 inches, 4.5 inches, 5 inches, 6 inches

Power & Performance

Thread Type OptionsBSP, CAM, NPT, NST, STORZ
Flange Orientation OptionsFemale, Male

Materials

ConstructionHigh quality al-mag alloy

Compliance & Warranty

WarrantySee product page

The Tank Vault Promise

Every product we carry meets strict standards for build quality and real-world performance.

Vetted for QualityEach flange is curated from trusted manufacturers and inspected for casting integrity and thread accuracy before it ships.
Free ShippingEvery order ships free with no minimums or conditions — straight to your dock or job site.
30-Day Hassle-Free ReturnsIf it doesn't fit your system, send it back within 30 days for a full refund, no questions asked.
★★★★★
“Replaced a stripped NST flange on our 3,000-gallon self-supporting tank. The al-mag threading on this one feels significantly tighter than the original. Drains fast, no leaks. We ordered the exact same size and orientation — swapped it in under ten minutes. This is the spec we'll stock from now on.”
F
First L.Houston, TX

Fol-Da-Tank Flanges are provided on all self-supporting tanks and all Quick-Assemble series tanks.  When no longer in use, the SST tank water may be quickly drained through a flange coupling on the side. 

All self-supporting tanks have reinforced heat sealed patches around the aluminum flange.  The flanges are made from high quality al-mag alloy which provides top quality castings and threads. 

The flanges can also be mounted on the side walls of the FOL-DA-TANK framed tank.  This application is used when drafting with a Low-Flow Strainer attached to the side wall.

Flanges range from 1.5″ – 6″ with standard NST male or female threads available.

Choose the following Flange options:

Thread Size:

  • 1.5 inches
  • 2 inches
  • 2.5 inches
  • 3 inches
  • 4 inches
  • 4.5 inches
  • 5 inches
  • 6 inches

Thread Type:

  • NST
  • NPT
  • BSP
  • STORZ
  • CAM

Flange Orientation:

  • Female
  • Male

Additional information

Size

1.5 inches, 2 inches, 2.5 inches, 3 inches, 4 inches, 4.5 inches, 5 inches, 6 inches
Thread Type

BSP, CAM, NPT, NST, STORZ
Flange Orientation

Female, Male

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SKU: fol-da-tank-flange Category: Brand:

The Tank Vault Promise

Every product we carry meets strict standards for build quality and real-world performance.

Vetted for Quality Each flange is curated from trusted manufacturers and inspected for casting integrity and thread accuracy before it ships.
Free Shipping Every order ships free with no minimums or conditions — straight to your dock or job site.
30-Day Hassle-Free Returns If it doesn't fit your system, send it back within 30 days for a full refund, no questions asked.

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About fol-da-tank Tank Accessory

fol-da-tank is a trusted manufacturer of premium tank accessory. TankVault is an authorized dealer offering the full fol-da-tank lineup with free delivery, price match guarantee, and expert support.

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