

3/4 Inch Brass Ball Valve, Threaded (NPT) – Full Port
Overview: The Industry Standard for Reliable Shut-Off
This 3/4 inch Brass Ball Valve is engineered for superior performance in residential, commercial, and industrial applications. Designed with a full port for maximum flow and minimal pressure drop, this valve provides durable, bubble-tight isolation for water, oil, gas (WOG), and air.
Key Features and Benefits
Full Port Design: Maintains the same internal diameter as the connecting pipe, ensuring zero flow restriction and maximizing system efficiency.
Threaded Ends (NPT): Features precision-machined female National Pipe Taper threads, guaranteeing leak-tight sealing and easy installation.
Blow-Out Proof Stem: Stem is inserted from the body interior, providing an added layer of safety against failure under high pressure.
100% Pressure Tested: Each valve undergoes individual hydraulic and pneumatic testing before shipping, ensuring zero leakage upon installation.
I. Technical Specifications and Certification
A. Dimensional and Operational Data
| Parameter | Specification | Standard / Unit | Practical Use Insight |
| Nominal Size (DN) | 3/4 Inch | DN20 | Ensures compatibility with 3/4″ piping systems. |
| Connection Type | Female Threaded | NPT (ASME B1.20.1) | Requires use of pipe sealant or PTFE tape for proper seal. |
| Body Material | Brass (Forged) | ASTM B124 C37700 or Equivalent | Provides high corrosion resistance for water and gas media. |
| Ball Material | Chrome-Plated Brass | – | Enhances durability and minimizes friction during operation. |
| Seat Material | Polytetrafluoroethylene | PTFE | Ensures tight shut-off and high chemical resistance. |
| Working Pressure (CWP) | 600PSI | WOG (Water, Oil, Gas) | Maximum non-shock cold working pressure rating. |
| Temperature Range | -20°C to 120°C | (-4°F to 248°F) | Suitable for standard hot water and steam (low-pressure) applications. |
| Handle Type | Heavy-Duty Lever Handle | Vinyl Coated Steel | Designed for quick 90° actuation (open to close). |
B. Compliance and Certifications
Thread Compliance: Meets ASME B1.20.1 for National Pipe Thread (NPT).
Pressure Compliance: Meets MSS SP-110 for standard ball valve pressure testing.
Potable Water Use: NSF/ANSI 61 Certified (if applicable): Approved for use in drinking water systems.
ISO Certification: Manufactured under ISO 9001:2015 Quality Management System.
II. Installation and Operational Guide (FAQ)
Q: Does this valve require specific installation direction?
A: No. Ball valves are inherently bi-directional and can be installed in any orientation. Unlike globe or check valves, flow can pass in either direction when open, and the valve can hold pressure from either side when closed.
Q: What is the benefit of a “Full Port” design?
A: The internal bore diameter of a full port valve is equal to the pipe’s nominal size (3/4″). This results in a Cv value (flow capacity) that is typically 20% higher than standard port valves, leading to lower energy consumption in pump systems.
Q: How should the threaded connection be sealed?
A: We strongly recommend using high-quality PTFE thread sealing tape (Teflon tape) or a pipe thread compound applied to the male NPT pipe. Do not over-tighten, as NPT relies on the thread taper for sealing.
III. Construction Details and Integrity
This valve features a two-piece body construction with a robust quarter-turn operation.
Stem Seal: Double O-rings and PTFE packing are utilized to minimize friction and prevent external leakage from the stem area.
Chrome Plated Ball: The smooth, hard surface minimizes wear against the PTFE seats, prolonging the valve’s service life, especially in high-cycle applications.
End Connections: Forged brass ensures material density and eliminates the porosity common in cast metals, providing superior pressure retention.
🔒 Warranty and Trust
We stand behind the quality of our industrial valves.
5-Year Limited Warranty: This 3/4″ Brass Ball Valve is covered by a 5-year warranty against manufacturing defects and pressure failure under rated conditions. Contact our support team for full details.
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