Year1
- 产品厂家：
- 上海永要阀门有限公司
- 厂家宗旨：
- “永生存，要品质精益求精”
- 产品质量：
- 保2年
<=#> type knife gate valve for sewage, unique upper cover sealing structure, the valve body sealing surface has soft seal and hard seal, during the opening and closing process, The gate plate and sealing surface adopt a special design, which has less friction and is durable. It is especially suitable for long-term normal operation in dusty and dry harsh environments.
<=#>2. Features of [Concealed Stem Knife Gate Valve]
<=#>: The upper cover structure is used, so that the upper seal is changed from a large-area rectangular seal to a small-area circumferential seal. Sealing performance is greatly improved.
After an envelope device is installed on the top of the handwheel, all movable parts of the valve can be kept in a closed state, and the screw drive of the gate plate and valve stem will not get stuck due to drying up of lubricating oil.
On the basis of the circumferential seal, the internationally advanced floating seal is used instead of an area circumferential seal, and the sealing performance is greatly improved.
On the basis of the circumferential seal, the internationally advanced floating seal structure is adopted, so that the upper seal has the same life span as the pipeline, thus improving the service life of the valve as a whole.
, unique structure, small size, light weight, light material saving, is an ideal product in sewage, coal slurry, syrup, mud, air, slag-water mixture, water supply, papermaking, mining and other industries.
<=#>3. [Concealed stem knife gate valve] parameters
< ) rc%> < =#>Nominal pressure r
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< =#> Shell test
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< =#>Sealing test
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< =#>Operating temperaturerr
< =#> Rubber&℃ PTFE seal&℃ Hard seal&℃
r℃, &℃, ℃
< =#>Applicable media
< =#>Pulp, sewage, coal gas, etc.r< br/>
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