Hoke 6600 Series Bleed Valves are now available from CIRCOR Instrumentation to provide safe venting of high pressures with the user’s choice of operation either venting to atmosphere or within a closed system. Safe and reliable pressure control is ensured by these valves, which are of 316 stainless steel construction and have integral tube ends. Pipe thread leak paths are eliminated by Hoke Gyrolok® end fittings. Offering compact installation in straight, union, elbow or tee flow configurations, the valves have an operating temperature range of -40°C to +316°C (-40°F to +600°F) at pressures up to 414 bar at +21°C (6000 psig at +70°F).