| 摘要 |
<p>The sprayer comprises an enclosed chamber made in two halves (1, 2). The joint line (7) locates the circumference of a diaphragm (3) dividing the chamber into two compartments. The product (9) to be sprayed is poured (15) into the upper part, on top of the diaphragm, and the spray fitted over the filter hole (10). The diaphragm deflects downwards to fill the lower or bottom part and water at mains pressure is introduced (6) through an integral pipe (4). The resultant pressure fills the lower chamber (13), forcing the product out under pressure. A three-way valve (5) permits draining (14) for refilling.</p> |
