Transmission cap elastic seat sealing gate valve
Product overview
The transmission cap elastic seat-sealing gate valve adopts the structure without concave cavity, the inner and outer surfaces of the valve body and bonnet are sprayed with epoxy resin, and the surface of the gate is coated with rubber, which fundamentally eliminates the possibility of corrosion, and the O-shaped sealing ring is used instead of packing at the valve stem seal, which makes bees more reliable. According to requirements, this gate valve can be operated by operating lever, handwheel, electric and pneumatic operation, etc. Suitable for drinking water, water supply and drainage, sewage treatment, natural gas and gas, industry, food and other industries.
Design feature
1. The whole bonnet is designed with concealed stem and compact structure; The structure of the valve stem and the gate has no jam; Straight channel, no drain cavity; The valve stem is sealed with O-ring.
2. Excellent anti-corrosion performance. Epoxy resin is sprayed on the inner and outer surfaces of the shell, and enamel is lined on the inner surface when necessary; The connecting bolts are hexagon bolts, and the top is sealed with glue.
3. Reliable sanitary epoxy resin meets the hygienic standard GB/T17219-1998, and the ram is coated with rubber that meets the hygienic inspection; The valve stem, valve stem nut and other parts are made of stainless steel or bronze which is not corroded by water.
Main parts materials
Serial number | Name | Material | Serial number | Name | Material |
1 | Body | Nodular cast iron | 8 | Thrust pad | Tin bronze |
2 | Flashboard | Ductile iron coated with EPDM | 9 | Axle sleeve | Tin bronze |
3 | Bolt | galvanize | 10 | Bolt | Galvanize |
4 | O-ring | NBR | 11 | shaft-cup | Nodular cast iron |
5 | Bonnet | Nodular cast iron | 12 | Dust cover | NBR |
6 | Valve rod | Stainless steel | 13 | Handwheel | Cast iron |
7 | O-ring | NBR | 14 | Clamp nut | Galvanize |
Main outline 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 |