An apparatus suitable for pressurized liquid transfusion, comprising: a casing including a channel for routing a liquid from a pressured source; a receptacle including an internal volume, the receptacle further includes an inlet opening and an outlet opening smaller in dimension than the inlet opening, wherein the inlet opening is at a high pressure end of the receptacle, and the outlet opening is at a low pressure end of the receptacle where the liquid exits; a cap for covering the inlet opening, the cap further includes a through hole for the liquid to enter the internal volume of the receptacle; a nozzle accommodated by the receptacle and including an outer perimeter and an internal, narrowing nozzle bore fluidly connecting the inlet opening and the outlet opening of the receptacle; an elastomeric ring holding the nozzle, wherein a height of the elastomeric ring is greater than that of an inner wall of the receptacle, the elastomeric ring is accommodated by the receptacle and includes an internal contour in contact with the outer perimeter of the nozzle; and a check nut engageable with the casing, wherein the elastomeric ring is tensioned to receive the nozzle, wherein when the casing and the check nut are engaged, the cap presses towards the receptacle and a proper seal is created between the elastomeric ring, the nozzle and the cap such that: (i) the liquid will be directed from the pressured source via the casing towards the nozzle in a controlled manner, and (ii) the liquid is prevented from leaving the receptacle except from the outlet opening, wherein the nozzle and the elastomeric ring occupy the internal volume except for at least a void at the inlet end of the nozzle. a casing including a channel for routing a liquid from a pressured source; a receptacle including an internal volume, the receptacle further includes an inlet opening and an outlet opening smaller in dimension than the inlet opening, wherein the inlet opening is at a high pressure end of the receptacle, and the outlet opening is at a low pressure end of the receptacle where the liquid exits; a cap for covering the inlet opening, the cap further includes a through hole for the liquid to enter the internal volume of the receptacle; a nozzle accommodated by the receptacle and including an outer perimeter and an internal, narrowing nozzle bore fluidly connecting the inlet opening and the outlet opening of the receptacle; an elastomeric ring holding the nozzle, wherein a height of the elastomeric ring is greater than that of an inner wall of the receptacle, the elastomeric ring is accommodated by the receptacle and includes an internal contour in contact with the outer perimeter of the nozzle; and a check nut engageable with the casing, wherein the elastomeric ring is tensioned to receive the nozzle, wherein when the casing and the check nut are engaged, the cap presses towards the receptacle and a proper seal is created between the elastomeric ring, the nozzle and the cap such that: (i) the liquid will be directed from the pressured source via the casing towards the nozzle in a controlled manner, and (ii) the liquid is prevented from leaving the receptacle except from the outlet opening, wherein the nozzle and the elastomeric ring occupy the internal volume except for at least a void at the inlet end of the nozzle.