| 摘要 |
The three-way valve is used for testing of pressure gaugesfor the operating pressure of steam and water-heated boilers,pressure vessels, manifolds and pipelines for water steam, hotwater and air and can be used as a distrubution block valve. Ithas improved reliability. The valve consists of a body (1) withholes: control K, inlet B and operating P, of bushings (3) woundaround it and of shutting needles (2) ending by steel balls stuckin them. Bushings (3) are sealed to body (1) by a washer (10).Nuts (4) are wound in bushings (3), and a sealing gland (9) isfitted between them. Tommy bars (5) are fitted to the shuttingneedles (2) by screws (7) and spring rings (8).1 claim, 1 figure/!
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