| 摘要 |
<p>The cock has a cylindrical body (12) with a threaded inlet and outlet (19). The plug (1) consists of two hollow half cylinders with holes (2) in the walls. The two spring rings (9) fit in grooves near the ends of the plug (1) and press the half cylinder against the inside walls of the body to seal against the fluid press. The valve is operated by rotating the spindle (5). The spindle (5) is provided with a fork end with prongs fitting in holes in ribs (3) in the plug (1). This design of cock produces an effective press. seal without the need for high precision in the mfr. of the detail parts.</p> |
