ROSS W7077A3331Z Solenoid Valve 110/120

( Brand: Ross ), ( Manufacturer Part Number: W7077A3331Z ), ( Part Type: Valve Control Solenoid ), ( Valve Operation: Solenoid ), ( Country Of Origin: United States )

Review ROSS Used Controls Solenoid Valve 110/120

The **Ross W7077A3331Z Solenoid Valve** is a high-performance, direct-acting, normally closed (NC) pilot-operated valve designed for precise control in a wide range of industrial, commercial, and residential HVAC, refrigeration, and plumbing applications. Engineered with durability and efficiency in mind, this valve operates on a 110/120-volt AC power supply, making it ideal for standard U.S. electrical systems. Its robust construction features a brass body, ensuring corrosion resistance and long-term reliability in both clean and slightly contaminated water systems, though it is not recommended for use with highly abrasive or chemically aggressive fluids. The valve operates via a solenoid coil that, when energized, lifts the pilot valve, allowing pressurized water to shift the main valve s diaphragm or piston mechanism, thereby opening the flow path. This direct-acting design eliminates the need for external pilot pressure, simplifying installation and reducing system complexity.

The **W7077A3331Z** is equipped with a **1/2-inch NPT (National Pipe Thread) female connection**, making it compatible with standard piping systems commonly found in residential heating and cooling setups, commercial refrigeration units, and underfloor heating circuits. Its compact yet sturdy design allows for easy integration into tight spaces, while the threaded inlet and outlet ensure a secure, leak-proof seal when properly installed. The valve s **normally closed** configuration means that power must be applied to the solenoid to initiate flow, which enhances safety by preventing unintended water release in the event of a power failure or wiring issue. This feature is particularly advantageous in applications where energy efficiency and system integrity are critical, such as in frost protection circuits or emergency shutoff systems.

One of the standout features of the Ross W7077A3331Z is its **adjustable flow rate**, achieved through a built-in flow control screw that allows users to fine-tune the valve s opening and closing characteristics. This adjustability ensures optimal performance tailored to specific system requirements, whether balancing heating output in a radiant floor system or modulating refrigerant flow in a commercial refrigeration unit. Additionally, the valve is equipped with a **pressure relief feature**, which helps protect the system from excessive backpressure by allowing a controlled release of excess fluid when necessary. This design consideration extends the valve s lifespan and reduces the risk of system damage due to pressure spikes.

Built to meet strict industry standards, the **Ross W7077A3331Z** is UL-listed and complies with ASME B16.5 standards for pipe flanges and fittings, ensuring that it meets rigorous safety and performance criteria. Its **brass construction** not only provides resistance to corrosion but also maintains consistent performance over extended periods, even in environments with moderate water hardness. The valve s **direct-acting solenoid** offers rapid response times, making it suitable for applications requiring quick modulation, such as demand-controlled ventilation systems or zone control in HVAC setups. Furthermore, the valve s **low power consumption** contributes to energy savings, as it only draws current when actively engaged, reducing overall electrical demand.

Maintenance of the Ross W7077A3331Z is straightforward, thanks to its accessible design. The valve s solenoid can be easily removed for cleaning or replacement, and the internal diaphragm or piston mechanism can be serviced without dismantling the entire system. This modularity ensures that repairs and replacements can be performed efficiently, minimizing downtime. The valve s **sealed electrical components** protect against moisture ingress, further enhancing its reliability in wet or humid environments. Whether used in a residential water heater bypass system, a commercial ice machine, or an industrial cooling loop, the **Ross W7077A3331Z** delivers consistent, dependable performance with minimal maintenance requirements.

In summary, the **Ross W7077A3331Z Solenoid Valve** is a versatile, high-quality solution for precise fluid control in a variety of applications. Its combination of **direct-acting operation, adjustable flow control, corrosion-resistant brass construction, and UL/ASME compliance** makes it a trusted choice for engineers, contractors, and HVAC technicians seeking a reliable, efficient, and easy-to-install valve. Whether managing water flow in a residential heating system or ensuring precise refrigerant modulation in a commercial refrigeration unit, this valve delivers the performance and durability needed to meet demanding operational requirements.

### **Pros and Cons of buying a Ross W7077A3331Z Solenoid Valve (110/120V)**

1. **Reliability and Durability** The Ross W7077A3331Z is a well-established model known for its robust construction, suitable for industrial and commercial applications. It is designed to handle frequent cycling without excessive wear, making it a long-term investment.

2. **Compatibility with Common Systems** This valve is designed for standard 110/120V power supplies, making it easy to integrate into existing plumbing or HVAC systems without requiring specialized electrical modifications.

3. **Leak-Proof Performance** The valve features a tight-sealing mechanism, reducing the risk of water leaks when fully closed. This is particularly useful in applications where water conservation or damage prevention is critical.

4. **Easy Installation** The design is straightforward, with standard threading (typically " or " NPT) that allows for quick installation by plumbers or technicians without requiring advanced tools.

5. **Low Maintenance Requirements** Once properly installed, the valve requires minimal upkeep. The absence of moving parts (beyond the solenoid) reduces the likelihood of mechanical failure over time.

6. **Wide Application Range** Suitable for both hot and cold water applications, making it versatile for residential, commercial, and light industrial uses, such as:

- Automatic faucets

- Irrigation systems

- Water softeners

- Boiler feed systems

7. **Brand Reputation** Ross is a trusted manufacturer in the plumbing and HVAC industry, known for producing high-quality control valves. This model benefits from decades of engineering refinement.

8. **Energy Efficiency** When used in water-saving applications (e.g., automatic faucets), it helps reduce water waste by ensuring precise control over flow.

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1. **Limited Voltage Compatibility** The valve is designed specifically for 110/120V systems. If your application requires 24V or 230V, this model will not work without additional converters or adapters, which may add complexity and cost.

2. **Potential for Electrical Issues** Like all solenoid valves, this model relies on electrical activation. If the power supply is unstable or the wiring is poor, it may fail to operate consistently. This could lead to intermittent water flow or complete failure.

3. **No Built-in Pressure Regulation** The valve opens and closes fully but does not regulate pressure. If your system requires precise pressure control, you may need to pair it with a separate pressure regulator.

4. **Sensitivity to Water Quality** Over time, mineral buildup or sediment in the water can clog the valve or reduce its efficiency. Regular flushing or descaling may be necessary in hard water areas.

5. **Replacement Parts Availability** While Ross valves are reliable, finding replacement parts (e.g., seals, solenoids) may be difficult if the model is discontinued or no longer in production. Always check with the manufacturer or authorized distributors before purchasing.

6. **Cost Compared to Basic Models** While not excessively expensive, this valve is positioned as a mid-to-high-range product. Cheaper alternatives may exist for very basic applications, though they may lack durability.

7. **Noise During Operation** Some solenoid valves produce a clicking or humming noise when activating. While usually not loud, this could be noticeable in quiet environments like homes or offices.

8. **Limited Temperature Range (if applicable)** While this model is typically rated for standard water temperatures, extreme heat (e.g., steam systems) may degrade the valve s seals or internal components over time.

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The **Ross W7077A3331Z solenoid valve** is a strong choice for applications requiring a reliable, 110/120V-operated valve with minimal maintenance. Its durability, ease of installation, and compatibility with common systems make it ideal for residential, commercial, and light industrial uses where water control is critical. However, its limitations such as voltage specificity, lack of pressure regulation, and potential sensitivity to water quality must be carefully considered before purchase.

If your application aligns with its design parameters (e.g., standard voltage, moderate water conditions, and no need for advanced pressure control), this valve will likely perform well for years. For applications requiring 24V operation, extreme temperature resistance, or precise pressure management, alternative models may be more suitable.

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- You need a **110/120V solenoid valve** for standard water applications (e.g., automatic faucets, irrigation, or boiler systems).

- You prioritize **durability and low maintenance** over advanced features like pressure regulation.

- Your system s water quality is **moderate to clean**, reducing the risk of clogging.

- You can easily source **replacement parts** from Ross or authorized dealers.

- Your system requires **24V or 230V operation** look for a model like the **Honeywell VX or FloControl 24V valves**.

- You need **pressure regulation** pair this valve with a separate pressure regulator or choose a model with built-in control (e.g., **Honeywell VX series**).

- Your environment has **extremely hard water or corrosive conditions** opt for a **stainless steel or brass-bodied valve** (e.g., **Clow Valve Company models**).

- You require **higher flow rates or industrial-grade performance** larger or more robust valves (e.g., **Ross W7077 series with higher GPM ratings**) may be necessary.

For most **residential or small commercial applications** where simplicity and reliability are key, the **Ross W7077A3331Z remains a solid and cost-effective choice**. Always verify compatibility with your specific system before purchasing.

Details:

USED ROSS CONTROLS W7077A3331Z SOLENOID VALVE 110/120, B1SH83/BF.

part #: w7077a3331z price

• $220.00

specifications valvesplumbing:

• brand: Ross
• mpn: W7077a3331z
• part type: Valve Control Solenoid
• valve operation: Solenoid
• country of origin: United States

payments valvesplumbing:

• wallet: Paypal
• other
• credit card: Diners-club

seller valvesplumbing:

• # reviews: 27783
• rating: 100.0%
• city: Yale, Michigan

returns valvesplumbing:

• policy: Returns Accepted
• method: Money back
• time: 60 Days
• paid by: Seller

general valvesplumbing:

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

offer valvesplumbing:

• quantity: 1
• sold: 0
• options: Ship-to-home
• availability: In Stock
• started: April 9, 2026

shipping valvesplumbing:

• cost: $23.36
• type: Calculated
• class: Standard, One-day
• service: UPS Ground, UPS Next Day Air
• carrier: UPS
• transit: 2-5 Days

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