1. Sarrera
This manual provides essential information for the safe and effective installation, operation, and maintenance of your U.S. Solid Motorized Ball Valve, Model USS-MSV00077. This 1/4-inch stainless steel valve features a full port design, operates on 9-24V AC/DC power, and includes a 2-wire auto return mechanism, functioning as a normally open valve.
2. Segurtasun informazioa
Please read and understand all safety instructions before installing or operating the valve. Failure to follow these instructions may result in property damage, injury, or death.
- Segurtasun elektrikoa: Ensure power is disconnected before performing any wiring or maintenance. All electrical connections should be made by a qualified professional and comply with local electrical codes.
- Presioaren Segurtasuna: Verify that the system pressure does not exceed the maximum operating pressure specified for this valve. Depressurize the system before installation or removal.
- Tenperatura: Do not operate the valve outside its specified temperature range.
- Bateragarritasun kimikoa: Ensure the valve material (304 stainless steel) is compatible with the fluid being controlled to prevent corrosion or failure.
- Instalazioa: Install the valve in a location that allows for proper ventilation and access for maintenance.
3. Produktua amaitu daview eta Ezaugarriak
The U.S. Solid Motorized Ball Valve is designed for reliable fluid control in various applications. Key features include:
- Eraikuntza iraunkorra: Manufactured from 304 stainless steel for enhanced safety and reliability, offering an estimated life expectancy of 80,000 to 100,000 cycles.
- Full Port Design: Features a 1/4-inch full port bore, minimizing pressure loss through the valve.
- NPT Threading: Equipped with 1/4-inch quality brass NPT threads, manufactured to National Pipe Thread standards.
- Zabala Voltage Barrutia: Operates effectively on 9-24V AC/DC power.
- Eragiketa azkarra: Opens or closes the valve within 3-5 seconds.
- Muga etengailua: Incorporates a limit switch to minimize power consumption once the valve is fully open or closed.
- 2-Wire Auto Return: Simple two-wire connection. The valve largely de-energizes after closing and automatically returns to the fully open position if power is removed.
- IP65 Enclosure Rating: Provides protection against dust ingress and low-pressure water jets from any direction.

Image 3.1: The U.S. Solid 1/4-inch motorized ball valve with its blue actuator and wiring.

Image 3.2: Dimensional drawing of the USS-MSV00077 motorized ball valve, showing its compact size.
4. Zehaztapenak
| Atributua | Balioa |
|---|---|
| Modelo zenbakia | USS-MSV00077 |
| Materiala | 304 altzairu herdoilgaitza |
| Tamaina | 0.25 Inch (1/4") |
| Elementuaren neurriak (L x W x H) | 3.35 x 2.68 x 2.28 hazbete |
| Elementuaren pisua | 9.1 ontza |
| Kanpoko akabera | Altzairu herdoilgaitza |
| Sarrerako konexio mota | Portu osoa |
| Irteerako konexio mota | NPT |
| Funtzionamendu-presio maximoa | 1E+6 Pascal (approx. 145 PSI) |
| Portu kopurua | 2 |
| Zehaztapena Met | IP65 Enclosure Rating |
| liburukiatage | 9-24V AC / DC |
| Eragiketa Denbora | 3-5 seconds (open/close) |
| UPC | 888107098362 |
5. Konfigurazioa eta instalazioa
Proper installation is crucial for the valve's performance and longevity.
5.1 Instalazio mekanikoa
- Prepare Pipe Ends: Ensure pipe ends are clean and free of debris.
- Aplikatu zigilatzailea: For NPT threads, apply appropriate thread sealant (e.g., PTFE tape) to the male pipe threads to ensure a watertight seal.
- Hari-balbula: Carefully thread the valve onto the pipe. Tighten firmly but do not overtighten, which can damage threads or the valve body.
- Orientazioa: The valve can be installed in any orientation, but ensure the actuator is accessible for wiring and inspection.

Image 5.1: Illustration of applying PTFE (Teflon) tape to male pipe threads before connecting to the valve for a secure, leak-free seal.
5.2 Electrical Wiring (2-Wire Auto Return)
This valve features a 2-wire auto return setup. It is a normally open valve, meaning it is open when no power is applied. Applying power will close the valve, and removing power will cause it to return to the open position.
- Energia iturria: Connect the valve to a 9-24V AC or DC power source.
- Kableatua: Connect the two wires from the valve to your power source. The valve will operate regardless of polarity for DC connections.
- Eragiketa: When power is applied, the valve will move to the closed position. When power is removed, the valve will automatically return to the open position.

Image 5.2: Wiring diagram illustrating the 2-wire auto return setup for both DC and AC power sources. The valve closes when power is applied and opens when power is removed.
6. Funtzionamendu-argibideak
The U.S. Solid Motorized Ball Valve is designed for straightforward operation based on its 2-wire auto return, normally open configuration.
- Normally Open State: When no electrical power is supplied to the valve, it remains in the fully open position, allowing fluid to flow through.
- Balbula ixtea: To close the valve, apply 9-24V AC/DC power to the two wires. The internal motor will actuate the ball, moving it to the closed position within 3-5 seconds. Once fully closed, the internal limit switch will cut power to the motor, preventing overheating.
- Opening the Valve (Auto Return): To open the valve, simply remove the electrical power supply. The valve's auto return mechanism will automatically move the ball back to the fully open position.

Image 6.1: Visual representation of a normally open valve's state with and without power, and a comparison of full port versus standard port designs.
7. Mantentzea
The U.S. Solid Motorized Ball Valve is designed for minimal maintenance. However, periodic checks can help ensure optimal performance.
- Ikus-ikuskapena: Regularly inspect the valve for any signs of leaks, corrosion, or physical damage to the valve body or actuator housing.
- Konexio elektrikoak: Ziurtatu konexio elektriko guztiak seguru daudela eta korrosiorik gabe.
- Actuator Function: Periodically cycle the valve (open and close) to confirm smooth operation and proper response to power signals.
- Garbiketa: Keep the exterior of the actuator clean and free of excessive dust or debris. The IP65 rating provides protection against dust and water jets, but harsh chemicals should be avoided.
- Erabiltzaileak ez du zerbitzurik gabeko piezarik: The actuator mechanism contains no user-serviceable parts. Do not attempt to disassemble the actuator, as this will void any warranty and may cause damage.
8. Arazoak
If you encounter issues with your motorized ball valve, refer to the following troubleshooting guide:
| Arazoa | Kausa posiblea | Irtenbidea |
|---|---|---|
| Valve does not open/close | Potentziarik ez edo bolumen okerratage. | Verify power supply is connected and within the 9-24V AC/DC range. Check wiring for loose connections. |
| Valve does not open/close fully | Obstruction in the flow path or internal mechanism. | Ensure no debris is blocking the ball. If the issue persists, the valve may require replacement. |
| Balbula ihesak | Improperly sealed threads or damaged valve body/seals. | Check thread sealant application. If the leak is from the valve body or stem, the valve may be damaged and require replacement. |
| Actuator makes noise but valve doesn't move | Internal gear damage or motor issue. | This indicates an internal mechanical failure. The actuator is not user-serviceable; valve replacement is recommended. |
| Valve overheats | Continuous power supply after reaching end position (limit switch failure). | Disconnect power immediately. This valve is designed to cut power via a limit switch. If overheating occurs, the limit switch may be faulty, and the valve should be replaced. |
9. Bermea eta Laguntza
For warranty information and technical support, please refer to the documentation provided at the time of purchase or contact U.S. Solid directly through their official webwebgunea edo bezeroarentzako arreta-zerbitzuko kanalak. Gorde erosketa-agiria erosketaren frogagiri gisa.
U.S. Solid Contact Information:
Please visit the official U.S. Solid webwebgunea laguntza eta harremanetarako datu eguneratuenak lortzeko.