Addressing Pump Seal Failures: A Case Study on Enhancing Agricultural Fluid Transfer Efficiency
Industry
Agriculture
Challenge
The customer was burning up the seals in their transfer pump causing it to run dry. This led to product spillage, equipment damage, and significant downtime.
Results
With an upgrade to a wet-seal pump and a new bypass system, the wear on the seals was drastically reduced. This eliminated the product spillage and prevented the pump from dry running too keep the customer up and running.
Product
M350 Wet Seal Pump

The Challenge
The customer was facing a persistent and costly problem: their transfer pump seals were repeatedly failing. This resulted in:
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Product Spillage: Valuable agricultural chemicals were being lost, impacting profitability and potentially causing environmental concerns.
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Equipment Damage: The spilled product was contaminating the pump motor and the nurse wagon itself, leading to potential equipment failure and increased maintenance.
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Operational Downtime: Frequent seal replacements caused significant disruptions to their workflow and reduced operational efficiency.

The Solution
Root Cause Analysis
A thorough assessment revealed two primary issues:
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Dry Running: The pump was frequently operated without liquid flowing through it, leading to excessive heat buildup and seal damage.
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Deadheading: The pump was often run against a closed valve (deadheading), causing extreme pressure and stress on the seals and pump components.
Solution Implementation
To address these challenges, a multi-faceted approach was adopted:
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Wet Seal Pump Upgrade: Recommend switching to a Banjo wet seal pump. These pumps are specifically designed to tolerate brief periods of dry running without causing immediate seal damage, offering a significant advantage over standard seal pumps in applications where accidental dry running is common.
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Bypass System Implementation: Design and install a bypass line that would route excess liquid back to the supply tank when the discharge valve is closed. This would prevent the pump from deadheading, relieving pressure and protecting the seals and pump.
The Results
The customer adopted the recommended solutions, leading to significant improvements:
Elimination of Seal Failures:
The installation of the Banjo wet seal pump and the implementation of the bypass line effectively addressed the root causes of the seal failures. The customer experienced a complete cessation of recurring seal replacements.
Prevention of Product Spillage:
By preventing seal failures and eliminating deadheading, the amount of spilled agricultural chemicals was drastically reduced, leading to cost savings and minimizing environmental impact.
Protection of Equipment:
The pump motor and nurse wagon were no longer exposed to corrosive chemical spills, extending their lifespan and reducing maintenance requirements.
Increased Operational Efficiency:
Eliminating downtime associated with seal replacements allowed the customer to operate more efficiently and maximize their productivity.
Customer Satisfaction:
The end-user was highly satisfied with the effective and long-term solution provided by Banjo, strengthening the relationship with the distributor.
This case study highlights the importance of understanding the specific operational challenges faced by end-users. By going beyond simply selling products and engaging in thorough problem-solving, Banjo Corporation was able to provide a tailored solution that not only resolved a critical issue but also delivered significant cost savings, improved safety, and enhanced customer satisfaction. The combination of a robust product (wet seal pump) and a smart system design (bypass line) proved to be the key to success in this agricultural transfer application.