1. Introduktion og produktoversigtview
This manual provides comprehensive instructions for the installation, operation, and maintenance of the Banjo TF400 4" Poly Bulkhead EPDM Tank Fitting. This fitting is designed for secure and reliable connections through tank walls, primarily for fluid transfer applications.
The TF400 features a durable polypropylene body and an EPDM gasket, offering excellent resistance to a wide range of chemicals, ozone, sunlight, and good flexibility at low temperatures. It is particularly suited for applications involving alkalis, acids, oxygenated solvents, water, and steam.

Figur 1.1: The Banjo TF400 4" Poly Bulkhead EPDM Tank Fitting. This image shows the fitting as a single, assembled unit, highlighting its robust black polypropylene construction and threaded design.
2. Opsætning og installation
Proper installation is crucial for the optimal performance and longevity of the Banjo TF400 bulkhead fitting. Ensure all components are present and undamaged before beginning installation.

Figur 2.1: Components of the Banjo TF400 Bulkhead Fitting. This image displays the main fitting body, the hexagonal retaining nut, and the EPDM gasket, illustrating the parts required for assembly and installation.
2.1. Tjekliste før installation
- Verify the tank material is compatible with polypropylene and EPDM.
- Ensure the tank wall thickness is suitable for a bulkhead fitting.
- Confirm the hole size in the tank wall matches the fitting's requirements (typically slightly larger than the threaded portion).
- Inspect all fitting components (body, nut, EPDM gasket) for any defects or damage.
2.2. Installationstrin
- Klargør tanken: Drill a clean, appropriately sized hole in the tank wall at the desired location. Deburr any sharp edges around the hole.
- Placer pakningen: Place the EPDM gasket onto the threaded portion of the fitting body. The gasket should be positioned on the side that will be inside the tank, against the tank wall, to ensure a proper seal.
- Indsæt fittingen: Insert the threaded body of the fitting through the prepared hole from the inside of the tank, ensuring the gasket is flush against the inner tank wall.
- Attach the Nut: From the outside of the tank, thread the hexagonal retaining nut onto the fitting body. The Banjo TF400 features standard NPT (National Pipe Tapered) threads for easy installation.
- Spænd sikkert: Hand-tighten the nut until snug. Then, use an appropriate wrench to tighten the nut further, compressing the EPDM gasket against the tank wall. Do not overtighten, as this can damage the fitting or the tank. The goal is a watertight seal.
- Lækagetest: After installation, fill the tank with water or a compatible fluid and inspect for any leaks around the fitting. If leaks are detected, tighten the nut slightly more or re-evaluate the installation.
3. Betjeningsvejledning
The Banjo TF400 bulkhead fitting is a passive component designed to provide a secure and leak-free connection point for plumbing systems through a tank wall. Once properly installed, its operation is straightforward:
- Ensure all connections to the fitting (e.g., pipes, hoses, valves) are securely attached and properly sealed using appropriate thread sealant if necessary.
- Verify that the fluid being transferred is compatible with polypropylene and EPDM to prevent material degradation.
- Monitor the fitting for any signs of leakage during initial use and periodically thereafter.
- Avoid subjecting the fitting to excessive pressure or vacuum beyond its design limits.
4. Vedligeholdelse
Regular maintenance ensures the continued reliability and performance of your Banjo TF400 bulkhead fitting.
- Periodisk eftersyn: Visually inspect the fitting and surrounding tank area regularly for any signs of wear, cracks, discoloration, or leaks. Pay close attention to the EPDM gasket for signs of degradation or compression set.
- Rensning: If necessary, clean the exterior of the fitting with a mild soap and water solution. Avoid harsh chemicals that may degrade the polypropylene or EPDM.
- Udskiftning af pakning: The EPDM gasket is a wear item. If any signs of leakage persist after re-tightening, or if the gasket appears brittle, cracked, or excessively compressed, it should be replaced with an original Banjo replacement gasket.
- Kemisk kompatibilitet: Always ensure that the chemicals or fluids being stored or transferred are compatible with both polypropylene and EPDM. Incompatible chemicals can lead to premature failure of the fitting.
5. Fejlfinding
This section addresses common issues you might encounter with your Banjo TF400 bulkhead fitting.
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Leakage around the fitting |
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| Difficulty threading the nut |
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| Fitting feels loose after installation |
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6. Produktspecifikationer
| Attribut | Detalje |
|---|---|
| Modelnummer | TF400 |
| Størrelse | 4 tommer |
| Materiale | Polypropylen |
| Pakningsmateriale | EPDM |
| Mærke | Banjo |
| Farve | Sort |
| Varedimensioner (L x B x H) | 10 x 10 x 5.75 tommer |
| Connector Type | Kompression |
| Trådstørrelse | 4 tommer |
| Trådtype | NPT |
| Varens vægt | 4.5 pund |
| Fabrikant | Banjo Corporation |
Bemærk: Specifikationerne kan ændres uden varsel.
7. Garantioplysninger
Specific warranty details for the Banjo TF400 fitting are not provided in this manual. For information regarding product warranty, please refer to the official Banjo Corporation webhjemmeside eller kontakt deres kundeservice direkte.
8. Kundesupport
Should you require further assistance, have questions about installation, or need to report an issue, please contact Banjo Corporation customer support.
- Fabrikant: Banjo Corporation
- Officiel Webwebsted: www.banjocorp.com (Please check their website for contact details and support resources.)
- Amazon Store: Visit the Banjo Store on Amazon





