Soft seal dark stem gate valve-Water conservancy control valve series-水利控制阀厂家-上海冠环阀门制造有限公司

Product overview

The Non rising stem elastic seat sealed gate valve adopts a cavity free structure. The inner and outer surfaces of the valve body and bonnet are sprayed with epoxy resin, and the surface of the ram is coated with rubber, which fundamentally eliminates the possibility of corrosion. The packing is discarded at the valve stem seal and the "O" ring is used, making the bees more reliable. As required, the gate valve can be operated by operating lever, handwheel, electric and pneumatic methods. It is applicable to drinking water, water supply and drainage, sewage treatment, natural gas and gas, industry, food and other industries.

Structural features

1. The overall valve cover is designed with a dark stem, and the structure is compact; the stem nut and the gate are two-body structure, no jamming phenomenon occurs; the straight channel has no leakage cavity; the stem seal adopts an "O"-shaped sealing ring.

2. It has excellent anti-corrosion performance. The inner and outer surfaces of the shell are sprayed with epoxy resin, and the inner surface is lined with enamel when necessary.

3. The reliable hygienic epoxy resin conforms to the hygienic standard GB/T17219-1998, and the gate plate is entirely covered with rubber that conforms to hygienic inspection; the valve stem, stem nut and other parts are made of stainless steel or bronze that is not corroded by water.

Main part material

No.	Name	Material	No.	Name	Material
1	Body	Ductile Iron	8	Thrust pad	Tin bronze
2	Gate	Ductile iron covered with EPDM	9	Bushing	Tin bronze
3	Bolt	Galvanized	10	Bolt	Galvanized
4	Sealing ring	NBR	11	Axle cover	Ductile Iron
5	Bonnet	Ductile Iron	12	Dust cover	NBR
6	Stem	Stainless steel	13	Handwheel	Cast iron
7	"O" ring seal	NBR	14	Fastening nut	Galvanized

Main external connection dimensions

DN	50	65	80	100	125	150	200	250	300	350	400	450	500	600
L	178	190	203	229	254	267	292	330	356	381	406	432	457	508
HA	313	332	372	424	497	562	680	837	948	1010	1220	1280	1480	1665
HC	355	375	415	476	540	600	720	875	990	1050	1245	1310	1560	1750