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Products Features * All Nigo's products conform to specifications ASTM (American Society for Testing and Materials) B124 and B16 * NPT threads on all Nigo's products meet ASME B1.20.1 * Designed for use in air, water, oil, nature, manufactured, mixed, liquefied petroleum or propane and LP Gas-Air * Use with brass, steel, and iron pipe; Teflon tape and thread sealant are recommended for threaded joints * Temperatures range from -40 to 302 F * Max. Pressure: 400 PSI WOG * Full port design *L-Port design (please refer to the image) * Blowout proof stem * Connections: NPT Female x NPT Female x NPT Female About Us Nigo Industrial Co,. Ltd manufactures a wide variety of valves and pipe fittings. The company meets international organization for standardization ISO 9001:2015 Quality Management System standard.