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Double Male NPT Locking Ball Valve
The Double Male NPT Locking Ball Valve is a stainless steel valve designed for secure flow control in industrial piping systems. With male NPT threads on both ends, it easily connects to female-threaded components, making it ideal for fluid isolation or regulation in water, steam, air, and chemical lines. The locking handle ensures tamper-resistant operation, critical for safety and system integrity. Made from corrosion-resistant 304 stainless steel, this valve delivers long-term durability and leak-free performance. Contractors can install it using standard tools and thread sealant, making it a reliable choice for high-pressure and demanding environments.

Key Features
- Proven Technology: Simple and robust connection ensures long-term system reliability.
- Flameless Installation: Clean and safe assembly reduces installation time and labor costs.
- Cost Efficiency: Achieve over 50% reduction in traditional installation costs.
- Vibration Absorption: Elastomeric connections absorb vibration, thermal expansion, and contraction.
- Corrosion Resistance: Chromium dioxide layer protects against harsh environments.
- Fluid Integrity: No risk of contamination to conveyed fluids.
- UV Stability: No degradation from UV exposure.
- Low Expansion: Thermal expansion factor of only 16, ensuring dimensional stability.
Size Range
Available in 1/2″ to 2″, each valve is supplied with (2) Union Connectors for fast and secure installation.
Material
- 304 Stainless Steel: Durable, hygienic, and corrosion-resistant for long-term industrial use.
Seal Options
- Valve Body Seal: PTFE for excellent chemical resistance and high-temperature performance.
Applications
- Compressed Air / Inert Gases: Ideal for corrosive environments and food-grade systems
- Chemical Handling: Excellent corrosion resistance
- Cooling Systems: Coolers, cooling towers, and chillers (glycol-based)
- Process Water: Reliable in industrial water systems
- Oils: Suitable for cutting fluids and lubricants
- Power Generation: Built to perform in demanding energy sector conditions
Certifications
- ASME B31.1, ASME B31.3, ASME B31.9
- ASTM A312
- ISO 8573-1
- ISO 9001, ISO 14001
Warranty
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- 10-Year Warranty on all AP Stainless fittings

Additional information
Weight
0.6 lbs
Double Male NPT
1/2" Double Male NPT, 3/4" Double Male NPT, 1" Double Male NPT, 1-1/4" Double Male NPT, 1-1/2" Double Male NPT, 2" Double Male NPT
Color
Silver Metallic
Features
High Flow
Pressure
188 PSI, 1mbar/0.03inhg (Full industrial vacuum), 200 PSI
Connection
Threaded
Temperature
EPDM -4°F to +248°F
Material
Stainless Steel
AP Stainless Certification
ASME, CE, EN, ISO 14001, ISO 45001, ISO 9001, TS, TUV, UL, ASME B31.1, ASME B31.3, ASME B31.9, ASTM A312, ISO 8573-1, ISO 9001, ISO 14001