T-SHAPED FIRE-FIGHTING HYDRAULIC GIANT Russian patent published in 1999 - IPC

FIELD: fire-fighting machinery and equipment. SUBSTANCE: T-shaped fire-fighting hydraulic giant has following components: gate valve, lifting pipe, gate valve spindle extension, protective sleeve of spindle extension, clamp, coupling member with spiral thread and device for its protection, and S-shaped adapter member which has no rectangular and sharply narrowing structural component in lower part of adapter member. This particular feature allows for removing spindle from lifting pipe outside so as to minimize distance between lifting pipe and spindle extension. Aforesaid embodiment of hydraulic giant ensures favorable inflow of water and allows for installing fire-fighting hydraulic giant in water intake well with standard hole, thus providing best approach to water intake well and more convenient conditions for operation in it. EFFECT: higher efficiency. 3 cl, 1 dwg