Non rising stem gate valve-Gate valve series-闸阀厂家-上海冠环阀门制造有限公司

Structure Features

The non-rising stem gate valve is a gate of the opening and closing part. The direction of movement of the gate is perpendicular to the direction of the fluid. The non-rising stem gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The non-rising stem gate valve is sealed by the contact between the valve seat and the gate, and usually the sealing surface will be surfacing with metal materials to increase wear resistance. It is widely used as an opening and closing device for connecting or cutting off the medium in the pipeline of petrochemical industry, thermal power plant and other oil products and steam pipelines.

Main Structure Features Include

1.Non-rising stem gate valve is featured with compact structure, reasonable design, high rigidity, smooth fluidity and small fluid resistance coefficient;
2.Sealing surface is made of stainless steel and hard alloy to ensure long service life;
3. Flexible graphite material is used to ensure reliable sealing effect and flexible operation;
4.Drive Type: manual drive, electric drive, gear transmission;
5.Structural Type: elastic wedge single gate, rigid wedge single gate, double gate.

Main external connection dimensions PN 10

DN	L	D	D1	D2	n-d	H	D0	b-f
50	180	160	125	100	4-18	285	180	20-3
65	190	180	145	120	4-18	315	180	20-3
80	203	195	160	135	4-18	353	200	22-3
100	229	215	180	155	8-18	380	200	22-3
125	254	245	210	185	8-18	500	240	24-3
150	267	285	240	210	8-23	560	240	24-3
200	330	335	295	265	8-23	660	320	26-3
250	380	390	350	320	12-23	800	320	28-3
300	420	440	400	368	12-23	886	400	28-4
350	450	500	460	428	16-23	968	400	30-4
400	480	565	515	482	16-25	1090	500	32-4
450	510	615	565	532	20-25	1200	500	32-4
500	540	670	620	585	20-25	1380	600	34-4
600	600	780	725	685	20-30	1500	600	34-5
700	660	895	845	800	24-30	2014	650	40-5
800	720	1010	950	905	24-34	2368	700	44-5
900	780	1110	1050	1005	28-34	2570	700	46-5
1000	840	1220	1160	1115	28-34	2740	800	50-5