1. Introduction
This manual provides essential information for the proper installation, operation, and maintenance of the Banjo TF200 Polypropylene Bulkhead Tank Fitting. Please read this manual thoroughly before installation and use to ensure safe and efficient performance.
The Banjo TF200 is a durable 2-inch NPT female bulkhead tank fitting, constructed from polypropylene, designed for secure and leak-free connections in various tank applications. It features an EPDM gasket for reliable sealing.
2. Safety Information
Always observe standard safety precautions when working with plumbing and tank systems. Ensure the tank is empty and depressurized before attempting installation or maintenance.
- Wear appropriate personal protective equipment (PPE), such as gloves and eye protection.
- Do not overtighten the fitting, as this may damage the threads or the tank material.
- Verify compatibility of the fitting material (polypropylene) with the fluid being contained in the tank.
- Ensure the required hole size (3 inches) is accurately drilled to prevent leaks and ensure proper fit.
3. Product Overview
The Banjo TF200 is a 2-inch NPT female bulkhead tank fitting. It is designed for creating a secure threaded connection through the wall of a tank or container.

Figure 1: Front view of the Banjo TF200 Polypropylene Bulkhead Tank Fitting. This image shows the main body of the fitting with its hexagonal shape and internal threading, designed for secure attachment to a tank.

Figure 2: Side view of the Banjo TF200 Polypropylene Bulkhead Tank Fitting. This view highlights the external threads for mounting through a tank wall and the EPDM gasket for sealing.
Key Components:
- Fitting Body: Main polypropylene structure with internal and external NPT threads.
- Gasket: EPDM material, designed to create a watertight seal against the tank wall.
- Lock Nut: Secures the fitting to the tank wall. Note: Some Banjo fittings may have reverse threads on the lock nut for specific applications. Verify thread direction before tightening.
4. Setup and Installation
Proper installation is crucial for preventing leaks and ensuring the longevity of the fitting.
Required Tools:
- Hole Saw (3-inch diameter recommended for optimal fit)
- Drill
- Adjustable Wrench or Pipe Wrench
- Sealant (optional, but recommended for critical applications)
Installation Steps:
- Prepare the Tank: Ensure the tank is empty, clean, and free of debris in the area where the fitting will be installed.
- Drill the Hole: Using a 3-inch hole saw, carefully drill a clean, circular hole in the desired location on the tank wall. Deburr any sharp edges around the hole.
- Position the Gasket: Place the EPDM gasket onto the threaded portion of the bulkhead fitting. The gasket should be on the side that will be inside the tank, against the tank wall.
- Insert the Fitting: Insert the threaded portion of the fitting through the drilled hole from the inside of the tank, ensuring the gasket is flush against the inner tank wall.
- Attach the Lock Nut: From the outside of the tank, thread the lock nut onto the external threads of the fitting. Turn clockwise to tighten, unless the nut has reverse threads (some Banjo fittings do). Hand-tighten first.
- Final Tightening: Use an adjustable wrench or pipe wrench to gently tighten the lock nut. Do not overtighten. The goal is a snug fit that compresses the gasket sufficiently to create a watertight seal. Excessive force can crack the tank or fitting.
- Test for Leaks: After installation, fill the tank with water and inspect for any leaks around the fitting. If leaks occur, slightly tighten the lock nut until the leak stops.
5. Operating Considerations
Once installed, the Banjo TF200 operates passively as a connection point. Ensure that any pipes or hoses connected to the fitting are properly supported to avoid undue stress on the bulkhead.
- Pressure Limits: Do not exceed the maximum pressure rating of 150 psi.
- Temperature Range: The fitting is designed to operate within a temperature range of -20°F to 150°F (-29°C to 66°C). Operating outside this range may compromise the material integrity and sealing capabilities.
- Chemical Compatibility: Verify that polypropylene and EPDM are compatible with the specific chemicals or fluids being stored in the tank. Incompatibility can lead to material degradation and leaks.
6. Maintenance
The Banjo TF200 requires minimal maintenance. Regular inspection is recommended to ensure continued performance.
- Periodic Inspection: Routinely check the fitting for any signs of wear, cracks, or leaks, especially around the gasket area.
- Gasket Replacement: If a leak develops or the gasket appears degraded, replace it with a new EPDM gasket of the correct size.
- Cleaning: Clean the exterior of the fitting as needed using mild soap and water. Avoid harsh chemicals that may degrade the polypropylene or EPDM.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Leak around the fitting |
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| Difficulty threading lock nut |
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| Fitting feels loose after installation |
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8. Specifications
| Model Number | TF200 |
| Brand | Banjo |
| Body Material | Polypropylene |
| Pipe Size | 2 inch |
| Connection Type | FNPT x FNPT (Female NPT x Female NPT) |
| Required Hole Size | 3 inches |
| Gasket Material | EPDM |
| Maximum Pressure | 150 psi |
| Temperature Range | -20°F to 150°F (-29°C to 66°C) |
| Color | Black |
| Product Dimensions (L x W x H) | 4 x 3 x 4 inches |
| Item Weight | 0.55 Pounds (8.8 ounces) |
9. Warranty and Support
Specific warranty information for the Banjo TF200 Polypropylene Bulkhead Tank Fitting is not provided in this document. For warranty details or technical support, please contact Banjo Corporation directly or refer to their official website.
You can typically find contact information for Banjo Corporation through their official website or by searching for "Banjo Corporation customer support".