37V-2 Forged Needle Valve Series FNV Forged Needle Valve RATERMANN Cryogenics T (844) 341-3433 S F (844) 341-3444 S Website: www.rmicryo.com S Email: [email protected] Forged Needle Valve Series FNV Description of Forged Needle Valves Generant Series FNV Needle Valves feature a forged body, integral bonnet design with PTFE and metallic wafer stem packing. This provides leak-tight service from vacuum to the maximum operating pressure. Series FNV are available in Straight and Angle configurations, with NPT and Dual Ferrule Tube connections. The industry standard panel mounting allows the FNV to be a cost effective solution to many applications. Standard metal to metal stem and optional Soft Tip stem provide accurate metering over a wide range of pressures. The Series FNV can be ordered cleaned for Oxygen Service. Features • Metallic and PTFE Wafer Stem Packing provides low operating torque • Panel Mounting Standard • Metal to Metal Standard, Optional Soft Stem Tip (PCTFE) • Straight or Angle Body Configurations • Male and Female NPT or Dual Ferrule Tube Connections • Suitable for Cryogenic Service • 100% Factory Tested Technical Data for Forged Needle Valves Maximum Operating Pressure @ 100º F Brass: 3000 Psig (207 Bar) Stainless: 5000 Psig (345 Bar) 1/8” - 3/8” NPT 1/8” & 1/4” Dual Ferrule Tube Vacuum – 5000 Psig (345 Bar) Temperature / Pressure Ratings Max. Working Pressure, Psig Temperature, ˚F (˚C) (Bar) Brass 316 SS - 320 (-195) to 100 (38) 3000 (207) 5000 (345) 100 (38) to 250 (121) 2200 (151) 4085 (282) 250 (121) to 350 (177) 1470 (101) 3715 (256) 350 (177) to 450 (232) – 3435 (237) Materials of Construction Component Brass Stainless Valve Body Brass, ASTM 377 316 SS, ASTM A182 Packing Nut Brass ASTM B16 316 SS, ASTM A479 Regulating Stem 316 SS, ASTM A479 Packing Washers Brass, ASTM B36 316 SS, ASTM A479 Packing PTFE, ASTM D1710 Soft Stem Tip PCTFE (Neoflon® M400), ASTM D1430 Panel Nut Brass, ASTM B16 303 SS, ASTM A582 Round Handle Nylon 6/6 (Zytel®) with Brass Insert “T” Handle 303 SS, ASTM A582 Handle Set Screw 304 SS, ASTM A182 Lubricant Oxygen Compatible Perfluoropolyether (PFPE) Grease Temperature Range: Metal to Metal Stem: -320° to 450° F (-195°C to 232°C) PCTFE Soft Stem Tip: -65° to 200°F (-54° to 93°C) NOTE: Stem Packing may begin to bind up, making valve adjustment difficult or impossible, at temperatures below -65º F. Orifice: 0.17” (4.32 mm) Flow Coefficient (Cv): 0.37 Internal and External Leakage: 0.1 cc/min max at 1000 PSI (69 bar). WARNING: Products in this catalog can expose you to chemicals including Lead which is known to the State of California to cause cancer, birth defects or reproductive harm. For more information, go to https://www.p65warnings.ca.gov
