Product overview
Directly buried elastic seat-sealed gate valve is to bury the whole valve in the ground, exposing only the upper valve stem. The whole valve is internally coated with rubber, which makes the valve achieve a good sealing effect, overcomes the phenomena of poor sealing, water leakage and rust of general gate valves, and saves installation space more effectively. It can be widely used as a regulating and intercepting device on the fluid pipelines of tap water, sewage, construction, petroleum, chemical industry, food, medicine, light textile, electric power, ship, metallurgy, energy system and so on.
Product features
1. Directly buried technology, which does not need to be a gate well, reduces the amount of installation and construction, and the buried depth range is adjustable.
2. Long service life, no internal leakage, and the advantages of spring brake.
3. It does not affect the traffic, is safe and reliable, and is integrated with the underground part to effectively prevent theft.
4. The unique telescopic structure of the valve stem effectively prevents the influence of ground subsidence on the valve.
Main technical parameters
| Nominal pressure | 1.0 | 1.6 | MPa | ||||||||||||||
| Strength test | 1.5 | 2.4 | |||||||||||||||
| Pressure test | 1.1 | 1.76 | |||||||||||||||
| Applicable temperature | ≤100 | ℃ | |||||||||||||||
| Applicable medium | Water, sewage, etc | ||||||||||||||||
Main technical parameters
| Part name | Material | ||||||||||||||||
| Body | Nodular cast iron | ||||||||||||||||
| Flashboard | Ductile iron coated with rubber | ||||||||||||||||
| Bonnet | Nodular cast iron | ||||||||||||||||
| Gland cover | Nodular cast iron | ||||||||||||||||
| Valve rod | 2Cr13 | ||||||||||||||||
| Gland cover | Density polyethylene | ||||||||||||||||
| Connecting shaft head | 45#(Zinc-nickel plating on the surface) | ||||||||||||||||
| Lower guard tube | PVC or PE | ||||||||||||||||
| Pipe protection sheath | Density polyethylene | ||||||||||||||||
| Casing | Q235(Zinc-nickel plating on the surface) | ||||||||||||||||
| Shaft sleeve/shaft head | 45#(Zinc-nickel plating on the surface) | ||||||||||||||||
Main outline connection dimensions
| DN | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 |
| H1 | 211.5 | 228.5 | 272.0 | 297 | 372.5 | 410 | 493 | 577 | 648 | 763 | 811 | 864.5 | 1012 | 1182 |
| L(Flange distance) | 178 | 190 | 203 | 229 | 254 | 267 | 292 | 330 | 356 | 381 | 406 | 432 | 457 | 508 |
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