Principle of Operation: Parker Autoclave Engineers Medium Pressure Cone and Thread connections were created for those applications that require higher flow rate capability. Designed for a maximum of 20,000 psi MAWP using high tensile strength cold worked 316 Stainless Steel material as standard. In addition we offer even larger ID tubing de-rated to 15,000 psi for maximum flow rate capability. This Medium Pressure series has all the benefits of the High-Pressure version with all metal sealing, temperature ranges from -423° to 1200°F (-252° to 650°C), and includes many different material options like 2507 Super Duplex, Hastelloy C276, 6Mo (25-4SMO), and Inconel 625 to mention just a few. Fittings and tubing found in this section are designed using ASME B31.3 Chapter IX standards to be compatible with our 15SM & 20SM, 20DBNV, 20DV Needle Valves, and all of our various ball valve configurations including Subsea. There is a Parker Instrumentation fitting for just about any application of fluids under extreme pressure and/or temperature condition. Medium Pressure Fittings and Tubing Features: • Utilize “SF” Style High Flow Medium Pressure Coned-and-Threaded connections (see Tools and Installation for typical port dimensions) • Available sizes are 1/4", 3/8", 9/16", 3/4", 1" and 1-1/2" • Standard Fitting Material is UNS S31600 withTubing manufactured using UNS S31600/S31603, 316/316L stainless steel material, cold worked to Parker Autoclave proprietary standards • Operating Temperatures from -423° to 1200°F (-252° to 650°C) • Anti-vibration connection components available, see page 15 • Special materials available when corrosion, temperature, or NACE/ISO 15156 requirements demand. (See Technical Catalog) All Parker Autoclave Engineers fittings are marked with manufacturers name, part number, material, heat code and maximum pressure for complete traceability.