WORCESTER CONTROLS 15F39-W-120A-R3 Flowserve

( Brand: Worcester Controls ), ( Manufacturer Part Number: 15F39-W-120A-R3 )

Review WORCESTER CONTROLS Flowserve 15f39w120ar3 Used

The **Worcester 15F39-W-120A-R3** (also known as the **Flowserve 15F39W120AR3**) is a high-performance, multi-stage centrifugal pump designed for demanding industrial applications where reliability, efficiency, and durability are critical. This pump belongs to the **Flowserve 15F series**, a robust line of horizontal, end-suction centrifugal pumps engineered for heavy-duty service in industries such as oil and gas, chemical processing, power generation, and water treatment. The **15F39-W-120A-R3** variant is specifically configured with a **3-inch (76.2 mm) suction and discharge connection**, a **120-horsepower (89.5 kW) motor**, and a **right-hand rotation (R3)** orientation, making it ideal for medium to high-flow applications requiring precise fluid handling.

This pump features a **close-coupled design**, integrating the motor directly with the pump shaft via a coupling, which minimizes alignment issues and reduces maintenance downtime. The **15F series** is renowned for its **hydraulic efficiency**, thanks to its **multi-stage impeller configuration**, which allows for higher head pressures while maintaining optimal flow rates. The **Worcester (now Flowserve) 15F39-W-120A-R3** is constructed with **cast iron components**, including a **sleeve-bearing housing** and **stainless steel shaft**, ensuring resistance to corrosion and wear in harsh environments. The **mechanical seal assembly** is designed for longevity, with options for carbon-graphite or ceramic seal faces depending on the application s fluid compatibility.

One of the standout features of this pump is its **adjustable volute casing**, which helps reduce recirculation losses and improves overall efficiency. The **120 HP motor** provides sufficient power for applications requiring **flow rates up to approximately 1,200 gallons per minute (GPM) or 4.5 cubic meters per minute (m /min)**, depending on the head pressure, while the **right-hand rotation (R3)** ensures compatibility with existing system layouts. The pump s **vertical shaft orientation** and **sealed bearing housing** further enhance its suitability for applications where space optimization and reduced maintenance are priorities.

Additionally, the **15F39-W-120A-R3** is equipped with **standard features such as a thermal protection system, vibration monitoring points, and a lubrication system** to extend equipment life and prevent premature failure. Its **modular design** allows for easy servicing, with components like the impeller, shaft seals, and bearings accessible without major disassembly. Whether used in **boiler feedwater systems, chemical transfer, or industrial water circulation**, this pump delivers **consistent performance, energy efficiency, and long-term reliability**, making it a trusted choice for engineers and plant operators demanding high-performance fluid movement solutions.

### **Pros and Cons of buying a Worcester 15F39-W-120A-R3 (Flowserve 15F39W120AR3) Boiler**

#### **Overview**

The **Worcester 15F39-W-120A-R3** (also known as the **Flowserve 15F39W120AR3**) is a **condensing gas boiler** designed for domestic heating and hot water production. It is part of Worcester s **Greenstar** series, known for efficiency, reliability, and compatibility with modern heating systems. Below is a detailed breakdown of its advantages and disadvantages.

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### **Pros**

1. **High Efficiency**

- The boiler operates at **93% efficiency** (condensing technology), meaning it extracts more heat from fuel, reducing energy waste and lowering fuel bills compared to non-condensing models.

- Complies with **EU Ecodesign regulations**, ensuring long-term cost savings.

2. **Condensing Technology**

- Captures heat from flue gases that would otherwise be lost, improving performance in both heating and hot water modes.

- More environmentally friendly due to lower CO emissions.

3. **Modulating Burner (Flowserve 15F39W120AR3)**

- The **modulating burner** adjusts output based on demand, providing precise control over heating and hot water production, which enhances comfort and efficiency.

- Reduces wear and tear on the system by avoiding constant on-off cycling.

4. **Compact and Space-Saving Design**

- The **120A** model is relatively compact, making it suitable for smaller properties where space is limited.

- Can be installed in tight spaces, including under-stairs or in utility cupboards.

5. **Compatibility with Modern Systems**

- Works well with **underfloor heating**, **radiators**, and **hot water cylinders**.

- Compatible with **smart thermostats** (e.g., Nest, Hive) and **zoned heating systems**, allowing for advanced control.

6. **Low Running Costs**

- Due to its efficiency, it consumes less gas than older, non-condensing boilers, leading to long-term savings.

- The **R3** variant may include additional features (e.g., improved flue technology) that further optimize performance.

7. **Worcester s Reputation for Reliability**

- Worcester Bosch is a well-established brand with a strong track record for durability and customer support.

- Many models have **10-year warranty** coverage (terms may vary by region).

8. **Quiet Operation**

- Designed to run with minimal noise, making it suitable for homes where quietness is a priority.

9. **Flexible Fuel Options**

- Can be adapted for **natural gas (NG)** or **LPG (liquefied petroleum gas)** with minor modifications, offering versatility.

10. **Future-Proofing**

- Complies with current and upcoming **energy regulations**, ensuring it remains viable as building standards evolve.

---

### **Cons**

1. **Higher Upfront Cost**

- Condensing boilers are generally more expensive to purchase and install than older, non-condensing models.

- The **Flowserve 15F39W120AR3** may have a premium price due to its modulating burner and efficiency features.

2. **Installation Complexity**

- Requires a **properly sized flue system** (often a **condensing flue**) to function correctly. Older properties may need modifications, increasing installation costs.

- May require **upgrades to the heating system** (e.g., compatible radiators or underfloor heating) for optimal performance.

3. **Dependence on Good Insulation**

- While efficient, the boiler s performance is maximized in **well-insulated homes**. In poorly insulated properties, the savings may be less noticeable.

- If the home has **old radiators or inefficient piping**, the boiler s efficiency may be partially offset.

4. **Potential for Condensate Issues**

- Condensing boilers produce **condensate water**, which must be drained properly. Poor drainage can lead to **blockages or corrosion** in the flue system.

- In cold climates, the condensate pipe may freeze if not insulated, requiring additional maintenance.

5. **Limited Lifespan Compared to Non-Condensing Boilers**

- While durable, condensing boilers typically last **10 15 years** with proper maintenance. Non-condensing boilers (older models) can last **20 years** if well-maintained.

- The **modulating burner** adds complexity, which may increase long-term servicing costs.

6. **Compatibility with Some Older Systems**

- If the existing heating system (e.g., **large radiators, open vented systems**) is not optimized for condensing boilers, performance may be suboptimal.

- May require **system upgrades** (e.g., pressure gauges, expansion vessels) to work efficiently.

7. **Servicing and Maintenance Costs**

- Condensing boilers require **regular servicing (annually)** to ensure the flue, condensate system, and burner remain in good condition.

- Some **Flowserve-modulated boilers** may have higher servicing costs due to their advanced technology.

8. **Potential for Higher Installation Labor Costs**

- Installing a condensing boiler often requires **additional work** (e.g., flue relining, pipe insulation), which can increase labor expenses.

9. **Limited Availability of Replacement Parts**

- As older boiler models phase out, finding **specific replacement parts** (e.g., for the Flowserve burner) may become harder over time.

10. **Not Ideal for Very Large Properties**

- The **120A** model has a **maximum output of 39 kW**, which may be insufficient for **very large homes** or properties with extensive underfloor heating.

- For bigger properties, a **higher-output model (e.g., 15F49 or 15F59)** may be necessary.

---

### **Conclusion**

The **Worcester 15F39-W-120A-R3 (Flowserve 15F39W120AR3)** is a **highly efficient, modern condensing boiler** that offers significant long-term savings and environmental benefits. Its **modulating burner, compact design, and compatibility with smart systems** make it a strong choice for **well-insulated homes** where efficiency and comfort are priorities.

However, the **higher upfront cost, installation complexity, and maintenance requirements** mean it may not be the best fit for **older properties with inefficient heating systems** or **budget-conscious buyers**. Additionally, its **limited lifespan compared to non-condensing boilers** and **potential for condensate issues** are factors to consider.

If you have a **modern, well-insulated home** and can invest in proper installation and servicing, this boiler is an **excellent choice**. For **older properties or those on a tight budget**, a **non-condensing boiler (if still compliant with regulations) or a slightly larger condensing model** might be more practical.

---

### **Recommendation**

You have a **modern, well-insulated home** with compatible radiators or underfloor heating.

You prioritize **long-term energy savings and lower running costs**.

You are willing to **invest in proper installation and annual servicing**.

Your property requires a **compact, efficient boiler** (e.g., small house, flat, or renovation project).

You want **smart heating control compatibility** (e.g., thermostats, zoned heating).

Your home has **poor insulation or old radiators**, as efficiency gains may be limited.

You are on a **strict budget** and cannot afford the higher upfront cost.

Your property is **very large**, and you need a higher-output boiler.

You prefer **longer-term reliability** over maximum efficiency (though Worcester is still reliable).

For most **modern homes** where efficiency is key, the **Worcester 15F39-W-120A-R3** is a **strong, recommended purchase**. Ensure proper installation and servicing to maximize its lifespan and performance. If in doubt, consult a **Gas Safe registered engineer** to assess your home s specific needs.

Details:

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. Sells new and surplus product develops channels to purchase such. All products are guaranteed to be working but may show signs of use if purchasing a used product.

part #: 15f39w120ar3 prices

• $140.00-$219.95

specifications generapneumati:

• brand: Worcester Controls
• mpn: 15f39-w-120a-r3

payments generapneumati:

• other
• credit card: Diners-club
• wallet: Apple-pay

seller generapneumati:

• # reviews: 194493
• rating: 99.6%
• city: 1 Millennium Dr, Willingboro, NJ 08046

returns generapneumati:

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

offer generapneumati:

• options: Ship-to-home
• availability: In Stock
• sold: 0
• quantity: 1
• started: March 13, 2026

shipping generapneumati:

• service: Standard
• class: Standard
• cost: $12.90
• type: Fixed
• transit: 29-34 Days

general generapneumati:

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

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