| 摘要 |
FIELD: process engineering.SUBSTANCE: invention relates to fluid dispensers. Fluid dispensing head has vale with body 10 making a cylindrical piston displacing axially in cylindrical chamber 12 formed by inner pipe 7 and valve body 10. Valve top and bottom seats 14, 15 are intended for piston ends 16, 17. Valve body has intermediate valve disc 18 that makes the bottom of pressure chamber 19 communicated with fluid channel 8. To open valve top seat 14 fluid dispensing pressure exceeding force of spring retaining valve body 1 in closed state may be set in compression chamber.EFFECT: ruled out ingress of bacteria and contaminants in dispensed fluid.17 cl, 8 dwg |
