Overview Reviews Product Description V610 and V611 needle valves have a carbon steel body with a type 316 stainless steel stem and PTFE (Teflon®) packing.The regular valves are rated for use from -40°C ~ 260°C (-40°F ~ 500°F).The V611M mini valve has a soft seat and is rated from -40°C ~ 40°C (-40°F ~ 104°F). Greenline Industrial Fitting Catalog New Greenline Industrial Fitting Catalog Product Videos Custom Field Product Reviews Write a Review Write a Review × Greenline 3/8" Steel 10000 PSI Female NPT Needle Valve V610-038 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *