Manual Concealed Plate Knife Gate Valve-Gate valve series-闸阀厂家-上海冠环阀门制造有限公司

Product introduction

DMZ73H Manual Concealed Plate Knife Gate Valve has the advantages of short body structure, light weight, the sealing surface of the valve seat can be protected from medium erosion, the sealing surface is evenly pressed, tightly fitted, and dust particles on the sealing surface of the valve seat can be removed during the closing process. It has the advantages of scraping away, tar, etc., convenient sewage discharge, and preventing medium leakage; it is suitable for use in gas pipelines containing dust or tar.

The upper seal of this kind of knife-shaped gate breaks through the conventional sealing form, and adopts the upper cover structure, which makes the upper seal change from a large-area rectangular seal to a small-area circumferential seal, and the sealing performance is greatly improved. On the basis of the circumferential seal, the most advanced floating seal in the world has been changed into an area circumferential seal, and the sealing performance has been greatly improved. On the basis of the circumferential seal, the most advanced floating seal structure in the world is adopted, which makes the upper seal reach the same life as the pipeline, thus improving the service life of the valve as a whole.

Product connection size

PN(MPa)	DN(mm)	L	D	D1	D2	H	N-M	Do
1.0	150	70	280	240	210	475	8-M20	280
	200	80	335	295	265	540	8-M20	360
	250	85	390	350	320	630	12-M20	360
	300	100	440	400	368	780	12-M20	400
	350	100	500	460	428	885	16-M20	400
	400	110	565	515	482	990	16-M22	400
	450	120	615	565	532	1100	20-M22	530
	500	130	670	620	585	1200	20-M22	530
	600	140	780	725	685	1450	20-M27	600
	700	165	895	840	800	1700	24-M27	600
	800	190	1010	950	905	2000	24-M30	680
	900	200	1110	1050	1005	2300	28-M30	680