| 摘要 |
<p>The valve block has two snap-action connections (2,3) for the main supply and output flows. The block also has a high pressure connection (4) for a pump, a pressure test connection (5), a filter test connection (6), and two low pressure outlet connections (7,8). Also incorporated is a connecting bush for a filter cartridge (12) mounted on the outside. The bush has an opening (13) for connecting the filter to a channel (62) to an expansion valve (11) fitted into the block. Also incorporated is a venting valve (9) and a heat control valve (10). The block incorporates further channels (61,51), connecting the expansion valve with selected connections (2,4), and with the venting valve. Another channel (64) connects the venting valve with the main inlet connection (3), and another channel (63) connects the filter with the heat control valve.</p> |
