Medical gas valve K900

manualstainless steel

K900 is a stop globe valve with replaceable bellows sealing. It is dedicated to low pressure at cryogenic temperature and can be actuated by a manual handwheel or a pneumatic actuator. The valve is ideally suited for liquid nitrogen and liquid oxygen, pure and ultra pure gases or liquids, combustible gases or liquids, oxidizings gases or liquids, toxic and corrosive gases or liquids, radioactive gases or liquids and noble gases or liquids. Key advantages 100% Helium leak test performed on all valves Sustainable metallic bellows providing a high internal/ external tightness Fluid specific seat material as standard options: Metal - Metal on request Visual Open-Close indicator for both manual and pneumatic versions Individual serial number for full traceability Corrosion resistant internal option available: Hastelloy® bellows Electropolished surface roughness 100% degreased for Oxygen use Cryogenic extension Specifications Fluid media Standard, high and ultra high purity and corrosive gases or liquids Max. working pressure see table below Pneumatic actuator operating pressure 0.5 - 0.7 MPa (5 - 7 bar) Temperature range 77K to 523.15 K (-196°C to +250°C)* Flow capacity (cv) see table below Nominal seat diameter see table below Certified max. helium outboard leak rate (at max. pressure) - ≤ 1.10-10 Pa.m3 .s-1 Certified max. helium across the seat leak rate (at max. pressure) - ≤ 3.10-10 Pa.m3 .s-1