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  3. GOULD VALVE B3-21-3

GOULD VALVE B3-21-3 Solenoid 100PSI 115V 3/8

B3-21-3 Gould Valve Solenoid 100psi Max 115v Size 3/8 Used With Warranty

( Brand: Gould Valve ), ( Manufacturer Part Number: B3-21-3 ), ( Part Type: Solenoid ), ( Location: B-205 )

Review GOULD VALVE Solenoid 100psi Max 115v Size 3/8 Used Warranty

The **Gould B3-21-3 Solenoid Valve** is a high-performance, direct-acting, normally closed (NC) pilot-operated valve designed for precise control of fluid flow in industrial, commercial, and HVAC applications. Engineered with robust construction, this valve operates at a rated pressure of **100 PSI**, making it ideal for medium-duty hydraulic, pneumatic, or water-based systems where reliable switching is critical. The **3/8-inch NPT (National Pipe Thread) porting** ensures compatibility with standard piping systems, allowing for seamless integration into existing setups without the need for additional adapters or fittings. Powered by a **115V AC single-phase electrical system**, the valve features a compact yet durable solenoid coil that delivers rapid and consistent actuation, minimizing response time and ensuring efficient operation. Its **direct-acting design** eliminates the need for external pilot pressure, simplifying installation and reducing system complexity while maintaining high efficiency. Built with corrosion-resistant materials, including brass or stainless steel components where applicable, the Gould B3-21-3 is engineered to withstand harsh environments, offering extended service life even in demanding conditions. The valve s **normally closed configuration** ensures that flow is halted when power is removed, enhancing safety and preventing unintended fluid discharge. Whether used in air conditioning systems, industrial automation, or water filtration applications, this solenoid valve provides dependable performance, precise control, and long-term reliability, making it a trusted choice for engineers and technicians seeking a balance of durability and functionality.

**Pros and Cons of buying a Gould Valve B3-21-3 Solenoid (100 PSI, 115V, 3/8")**

### **Pros**

1. **Reliability and Durability** Gould is a well-established brand in industrial and commercial fluid control, known for producing robust solenoid valves. This model is designed for heavy-duty applications, making it suitable for long-term use in systems requiring consistent performance.

2. **High Pressure Rating (100 PSI)** The valve is rated for 100 PSI, which is adequate for many standard HVAC, irrigation, or light industrial applications. It can handle moderate pressure without risking failure, provided it is used within its specified limits.

3. **Standard Voltage (115V)** The 115V requirement aligns with common electrical systems in residential, commercial, and small industrial settings, reducing compatibility issues.

4. **Compatibility with Common Pipe Sizes (3/8")** The 3/8" connection is versatile, fitting standard plumbing and tubing in many applications, including irrigation, cooling systems, and small-scale fluid distribution.

5. **Direct Replacement Option** If you are replacing an existing solenoid valve, this model may be a direct fit, simplifying installation and reducing downtime.

6. **Moderate Cost-Effectiveness** Compared to high-end or custom-engineered solenoid valves, this Gould model offers a balance between affordability and performance, making it a practical choice for budget-conscious buyers.

7. **Easy Installation** The design is straightforward, and it typically comes with mounting hardware, reducing the need for additional tools or modifications.

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### **Cons**

1. **Limited Pressure Range** While 100 PSI is sufficient for many applications, it may be insufficient for high-pressure systems (e.g., heavy-duty hydraulic or high-rise water distribution). Overloading the valve could lead to premature wear or failure.

2. **Basic Functionality** This valve is likely a standard **normally closed (NC)** or **normally open (NO)** model without advanced features like proportional control, multi-port operation, or digital integration. If you need precise flow regulation or automation, you may require a more sophisticated valve.

3. **Potential for Leakage Over Time** Like most mechanical solenoid valves, seals and internal components can degrade with age or frequent use, leading to leaks. Regular maintenance may be necessary to ensure longevity.

4. **Electrical Sensitivity** Solenoid valves are susceptible to power surges, voltage fluctuations, or improper wiring, which could damage the coil or cause erratic operation. A stable power supply is essential for reliable performance.

5. **Limited Temperature Range** Gould valves typically operate within a moderate temperature range (e.g., 32 F to 185 F / 0 C to 85 C). Extreme temperatures (e.g., freezing or high heat) could affect performance or cause material degradation.

6. **No Built-in Diagnostics** Unlike some modern valves, this model lacks sensors or feedback mechanisms to indicate internal issues (e.g., coil failure, clogging). Troubleshooting may require manual inspection or replacement.

7. **Potential for Clogging** If the fluid contains debris or contaminants, the valve s internal passages or seat could become clogged, reducing efficiency or causing failure. A filter may be necessary in the system.

8. **Warranty Limitations** Gould s warranty terms may vary, and some models could have limited coverage, especially if installed in harsh or non-standard conditions. Always review the warranty before purchase.

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### **Conclusion**

The **Gould Valve B3-21-3 (100 PSI, 115V, 3/8")** is a **practical, mid-range solenoid valve** well-suited for **standard applications** where reliability, moderate pressure handling, and ease of installation are priorities. It excels in **HVAC, irrigation, light industrial, or residential fluid control systems** where precise flow regulation is not critical.

However, it is **not ideal** for **high-pressure, high-temperature, or heavily automated systems**. If your application demands **proportional control, digital integration, or extreme durability**, you may need to consider a **higher-end model** from Gould or another manufacturer.

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### **Recommendation**

**Buy this valve if:**

- You need a **reliable, cost-effective solution** for a **standard 100 PSI system**.

- Your application involves **HVAC, irrigation, or simple fluid control** without extreme conditions.

- You require a **direct replacement** for an existing Gould valve.

- Budget constraints make premium valves impractical.

**Avoid this valve if:**

- Your system operates at **pressures significantly above 100 PSI** or in **extreme temperatures**.

- You need **advanced features** like proportional control, multi-port operation, or smart diagnostics.

- The fluid contains **abrasive particles** that could clog the valve without proper filtration.

- You require **long-term warranty support** or **custom engineering** for your specific application.

**Alternatives to Consider:**

- For **higher pressure needs**, look for Gould models rated **200 PSI or higher** (e.g., B3-21-4 or similar).

- For **automated or precise control**, consider **proportional solenoid valves** or **smart valves** with feedback systems.

- For **corrosive or abrasive fluids**, opt for **stainless steel or reinforced models** (e.g., Gould s heavy-duty series).

**Final Verdict:** This valve is a **solid, no-frills choice** for general-purpose use but may require upgrades for specialized applications. Always verify **system compatibility, fluid conditions, and long-term maintenance needs** before purchasing.

Details:

Location: B-205. This unit is used with warranty. Specifications: Size 3/8, 100PSI maximum pressure, 115V power supply. You are buying one solenoid Valve.

Same day shipping options search MRM Machine. Fast Shipping: Enjoy same-day shipping options for quick delivery. Trust in a leading brand known for durability industrial applications. This high-quality Valve is perfect for various hydraulic and pneumatic applications, ensuring optimal performance.

Key Features: - condition: Used, tested, and comes with a warranty for your peace of mind.

part #: b3213 price

  • $49.99

specifications valvesplumbing:

  • brand: Gould Valve
  • mpn: B3-21-3
  • part type: Solenoid
  • location: B-205

general Valvesplumbing:

  • Hydraulics, Pneumatics, Pumps Plumbing > Valves Manifolds > Other Valves Manifolds
  • condition: Used

seller Valvesplumbing:

  • rating: 100.0%
  • # reviews: 16267
  • city: Blanchester, Ohio

offer Valvesplumbing:

  • sold: 0
  • best offers: True
  • started: February 2, 2026
  • availability: In Stock
  • quantity: 1
  • options: Ship-to-home

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shipping Valvesplumbing:

  • cost: $8.25
  • service: Standard
  • type: Fixed
  • class: Standard
  • transit: 3-8 Days

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  • paid by: Buyer
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  • method: Money back
  • time: 30 Days
part type: solenoid, location: b-205,
category: business & industrial > hydraulics, pneumatics, pumps plumbing > valves manifolds, sku: 22106146564496772,
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1 offer $49.99 USD
  • Used. Offer #1 priced at $49.99 + $8.25 shipping estimate = $58.24* total. Trust in a leading brand known for durability in industrial applications This high-quality valve is perfect for various hydraulic and pneumatic applications, ensuring optimal performance.+$8.25 shipping

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