| 摘要 |
FIELD: atomic, power and other branches of industry. SUBSTANCE: check valve has body with seat, pivot-leaf gate secured on lever by turning axle, removable rod with head, and hollow spindle. Rest interacting with hollow spindle and housing removable rod is mounted on lever. Rest has hollow for engagement with hollow spindle. Detachable rod is arranged in rest. Rest has hollow for interaction with spindle. It is also provided with hole for coupling to removable rod head. Valve prevents leakage of heat carrier in emergency situation. EFFECT: enhanced control of flow rate in operating mode, required setting of valve closing time. 2 cl, 2 dwgl
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