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Information × Registration Number 0205U006475, 0104U009429 , R & D reports Title Development and approval of the branch standard "The valves mine accessories. General technical requirements" popup.stage_title Head Yushchenko Yury Nicholayevich, Registration Date 15-11-2005 Organization The RESPIRATOR Scientific-Research Institute of Mine-Rescue Work and Fire Safety popup.description2 The dependence of hydraulic parameters of the valves on technical characteristics of the fire-fighting equipment, its quantity and geodesic location has been established. Conditions of breakage of the water stream by its feed to the fire-fighting equipment and influence of pressure loss and flow section area of the valves on this process have been determined. The dependence determining the depth of location of the valves permissible has been received on condition that breakage of the water stream lacks. The condition of formation of the cavitation phenomena in the adjusting valve has been determined, and requirements which keeping by projecting and use of the valves guarantees their operation without cavitation have been worked out. The normative document has been developed that prescribes the obligatory requirements and indices to the mine valves with regard for operation conditions in the coal mine workings: water pressure in the fire-sprinkling pipe-line - up to 100 MPa and more, relative air humidity - up to 100 %, corrosion influence of mine water. Product Description popup.authors popup.nrat_date 2020-04-02 Close