Spiral fan-shaped blind plate valve

F343CX worm wheel fan-shaped blind plate valve also known as the worm fan type glasses valve, turn board valve, fan valve, from the left body, middle body, right body, fan-shaped blind plate, screw nut, stainless steel compensator, two worm gear transmission mechanism and so on. It is connected by three screw rods, and three valve bodies are fixed on the base to form a rigid structure. The middle body and the right body are connected with a stainless steel expansion pipe. The left and middle body are connected by three threads with left and right trapezoid threads respectively. The three silk rods are rotated forward (or reverse) at the same time, then the left and middle two body are pressed (or separated). A blind plate is arranged in the middle of the three screw rods, and the blind plate rotates around the axis. The following two wire rods are mounted on the same position with a blind plate. When the blind plate is rotated, the blind plate can be prevented from drifting and the seal ring is scraped. One of the silk rods is equipped with a worm gear mechanism to release and clamp the valve body.

DN	D	D1	b	n-φd	L
300	440	395	22	12-φ22	500
350	490	445	22	12-φ22	500
400	540	495	22	16-φ22	600
450	595	550	24	16-φ22	600
500	645	600	24	16-φ22	600
600	755	705	24	20-φ26	600
700	860	810	26	24-φ26	800
800	975	920	26	24-φ30	800
900	1075	1020	28	24-φ30	800
1000	1175	1120	30	28-φ30	800
1100	1275	1220	30	28-φ30	800
1200	1375	1320	30	32-φ30	800
1300	1475	1420	32	32-φ30	800
1400	1575	1520	32	36-φ30	850
1500	1675	1620	32	36-φ30	850
1600	1790	1730	32	40-φ30	850
1800	1990	1930	32	44-φ30	1100
2000	2190	2130	32	46-φ30	1100