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H61Y Welded Power Station Check Valve
H61Y welded power station check valve structure diagram
Scope of application
H61Y welded power station check valve is suitable for petroleum, chemical, hydraulic, thermal power stations and other working conditions with a nominal pressure of PN20.0 ～ 32.0Mpa and an operating temperature ≤540 ℃ (among which P (57) 170V operating temperature is 570 ℃) In the pipeline, cut off or connect the medium. Applicable medium: water, oil, steam, etc.
Designed and manufactured according to E101 and JB / T3595-93 standards, the structure is reasonable and the performance is excellent.
The middle cavity of the valve adopts a pressure self-tight seal structure. The higher the medium pressure, the better the sealing performance.
The two ends of the branch pipe are butt-welded to meet different requirements of the connection.
The sealing surfaces of the valve disc and the valve seat are made of stellite cobalt-based hard alloy, which is hard-wearing, high-temperature resistant, good abrasion resistance and long service life.
The high-temperature and pressure-resistant parts are made of high-quality heat-resistant alloy steel, which is safe and reliable, stable in performance and long in service life.
| Nominal pressure |
|Test pressure (MPa)||Working pressure (MPa)||Applicable temperature (℃)||Applicable medium|
|Shell strength (water)||Sealed (water)||Sealed (gas)||P54||P55||P57||WCB||WC1||C5||WC6||WC9|
|10.0||15||11||0.5 ~ 0.7||-||-||-||≤425||≤450||≤550||≤540||≤570||Water, steam, oil|
|Valve body||WCB, 25||2Cr1MoV||WC6||WC9|
|Valve disc, valve seat||25 stacks of STL cobalt-based cemented carbide||12CrMoV STL cobalt-based cemented carbide|
|Seal ring||Reinforced flexible graphite|
|model|| Nominal diameter |
| H61Y-250 |