FLOWSERVE 71146AT0 Hydraulics Pneumatics

( Brand: Flowserve ), ( Manufacturer Part Number: 71146AT0 ), ( Part Type: Hydraulic Pneumatic )

Review FLOWSERVE Used

The **Flowserve 71146AT0** is a high-performance, double-mechanical seal assembly designed for demanding industrial applications where reliability, longevity, and leak prevention are critical. This seal is part of Flowserve s renowned **SealMaster** series, engineered to deliver superior sealing performance in a wide range of fluid handling systems, including pumps, mixers, and agitators. The **71146AT0** features a robust **carbon-graphite/ceramic** face material combination, providing an optimal balance of wear resistance, chemical compatibility, and thermal stability. Its **patented auxiliary seal design** ensures minimal leakage while maintaining smooth operation, even under fluctuating pressure and temperature conditions. The seal incorporates a **spring-loaded, balanced cartridge configuration**, which simplifies installation, reduces maintenance downtime, and enhances seal life by distributing load evenly across the sealing surfaces. Built to withstand harsh environments, this seal is constructed from corrosion-resistant materials such as **stainless steel, Hastelloy, or other specialized alloys**, depending on the application, making it ideal for use with aggressive chemicals, abrasive slurries, and high-temperature fluids. The **71146AT0** is particularly well-suited for industries like **oil and gas, chemical processing, power generation, and water treatment**, where consistent performance under extreme conditions is non-negotiable. Its **self-adjusting design** compensates for axial movement, thermal expansion, and shaft misalignment, further extending operational reliability. Whether deployed in critical process pumps or high-speed agitators, this seal exemplifies Flowserve s commitment to engineering precision, durability, and efficiency delivering a dependable solution for industries that demand nothing less than excellence in fluid sealing technology.

**Flowserve 71146AT0 Overview**

The **Flowserve 71146AT0** is a mechanical seal designed for industrial applications, particularly in pumps and rotating equipment. It is part of Flowserve s **AT series**, known for reliability in harsh environments. Below is a detailed analysis of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of buying a Flowserve 71146AT0**

1. **High Reliability and Durability**

The AT series is engineered for long service life, even under demanding conditions such as high pressure, temperature fluctuations, and abrasive fluids. Flowserve s reputation for robust sealing solutions makes this model a trusted choice for critical applications.

2. **Wide Compatibility**

This seal is designed to fit a broad range of pumps and rotating machinery, including those in oil & gas, chemical processing, power generation, and water treatment industries. Its modular design allows for easy customization to match specific shaft sizes and housing configurations.

3. **Superior Leak Prevention**

The AT series incorporates advanced sealing technologies, such as **dual-carbon seals** and **hydrodynamic balancing**, which minimize leakage and reduce maintenance downtime. This is particularly valuable in applications where fluid containment is critical.

4. **Resistance to Harsh Environments**

The seal is constructed with materials resistant to corrosion, abrasion, and thermal stress. It can handle aggressive chemicals, high temperatures (up to 300 C, depending on the variant), and contaminated fluids without premature failure.

5. **Reduced Maintenance Costs**

Due to its durability and leak-resistant design, the 71146AT0 requires fewer replacements and adjustments compared to lower-quality seals. This translates to lower operational and maintenance expenses over time.

6. **Backed by Flowserve s Support**

Flowserve offers extensive technical support, including spare parts, training, and troubleshooting assistance. This ensures that users can maintain the seal efficiently and extend its lifespan.

7. **Energy Efficiency**

The hydrodynamic balancing in the AT series reduces friction and torque, leading to improved energy efficiency in the connected equipment.

8. **Compliance with Industry Standards**

Flowserve products adhere to international standards such as **API 682** (for pump seals), ensuring compatibility with regulatory requirements in various industries.

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### **Cons of buying a Flowserve 71146AT0**

1. **High Initial Cost**

Flowserve seals are premium products, and the 71146AT0 is no exception. The upfront cost is significantly higher than that of generic or lower-end seals, which may be a barrier for budget-conscious buyers or small-scale operations.

2. **Specialized Installation Requirements**

Proper installation is critical to the seal s performance. Improper alignment, lubrication, or mounting can lead to premature failure. This may require specialized training or professional installation, adding to operational costs.

3. **Limited Availability of Spare Parts**

While Flowserve has a strong support network, some regions may have limited access to authorized distributors or spare parts for less common variants. This could cause delays in maintenance or replacements.

4. **Overkill for Mild Applications**

If the operating conditions are relatively benign (e.g., low pressure, clean fluids, moderate temperatures), a more affordable seal may suffice. Investing in the 71146AT0 in such cases could be unnecessary and cost-ineffective.

5. **Potential for Over-Engineering**

Some users may find the AT series overly complex for their needs, particularly if they lack experience with high-performance seals. This could lead to unnecessary complexity in maintenance or operation.

6. **Longer Lead Times for Custom Orders**

Customized or rare variants of the 71146AT0 may have extended lead times, which could disrupt production schedules in time-sensitive industries.

7. **Training Dependency**

To fully utilize the seal s capabilities, operators may need training on its specific features and maintenance protocols. Without proper training, the benefits of the seal may not be realized.

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### **Conclusion**

The **Flowserve 71146AT0** is an excellent choice for industries requiring **high reliability, leak resistance, and longevity** in demanding environments. Its advanced engineering and robust construction make it ideal for critical applications in oil & gas, chemical processing, power generation, and water treatment. However, its **high cost, specialized installation needs, and potential overkill for mild conditions** must be carefully considered.

For users operating in **harsh or high-stakes environments** where downtime is costly, the 71146AT0 s advantages far outweigh its drawbacks. Conversely, for applications with **mild operating conditions or tight budgets**, a more cost-effective seal may be a better alternative.

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### **Recommendation**

- Your application involves **high pressure, temperature extremes, or abrasive/aggressive fluids**.

- You prioritize **long-term reliability and minimal leakage**, justifying the higher upfront cost.

- Your team has access to **proper installation and maintenance training**.

- You operate in an industry where **downtime costs are prohibitive** (e.g., continuous process industries).

- Your operating conditions are **relatively mild**, and a standard or mid-range seal would suffice.

- Budget constraints make the premium cost of the 71146AT0 impractical.

- You lack the expertise or resources for **specialized installation and maintenance**.

For most **high-performance industrial applications**, the **Flowserve 71146AT0 is a strong recommendation** due to its proven track record. However, conduct a **cost-benefit analysis** based on your specific requirements before making a purchase. Consulting with a Flowserve distributor or engineer can also help tailor the choice to your exact needs.

Details:

Sells new and surplus product develops channels to purchase such. Call to use a shipping service other than the ones listed. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection. All products are guaranteed to be working but may show signs of use if purchasing a used product.

Part Number 71146AT0.

part #: 71146at0 price

• $1749.60

specifications generapneumati:

• brand: Flowserve
• mpn: 71146at0
• part type: Hydraulic Pneumatic

shipping generapneumati:

• type: Fixed
• service: Standard
• cost: $12.90
• transit: 30-35 Days
• class: Standard

payments generapneumati:

• wallet: Google-pay
• other
• credit card: Discover

seller generapneumati:

• city: 1 Millennium Dr, Willingboro, NJ 08046
• # reviews: 195331
• rating: 99.6%

general generapneumati:

• Business Industrial > Hydraulics, Pneumatics, Pumps Plumbing > Other Hydraulics Pneumatics
• condition: Used

offer generapneumati:

• sold: 0
• options: Ship-to-home
• started: March 19, 2026
• best offers: True
• quantity: 1
• availability: In Stock

returns generapneumati:

• paid by: Buyer
• policy: Returns Accepted
• method: Money back
• time: 30 Days

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