美國POSI-FLATE選用不銹管蝶閥
美國POSI-FLATE廠家在生產蝶閥中選用不銹鋼材質供應，大大延長POSI-FLATE蝶閥的使用壽命，同時提高了POSI-FLATE蝶閥的使用環(huán)境！
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POSI-flate*蝶閥設計采用空氣壓力，擴大座位針對光盤，為一泡沫密封每次均勻的壓力分布，。由于座椅使得與閥的開閉過程中的光盤僅偶然接觸，有zui小的光盤沖擊。這是相對于傳統(tǒng)蝶閥其中光盤沖擊導致的座椅的剃須，降低整體性能和閥的使用壽命。
基本上較小的轉矩要求來打開和關閉Posi-flate蝶閥，從而較小的致動器可以使用導致較低的整體閥成本。
在實際的對比測試和記錄現場的應用，POSI-flate蝶閥的表現優(yōu)于其他所有的閥門。事實上，一到三百萬次，甚至在嚴重磨損的一個POSI-flate蝶閥的生活，并不少見。對于干燥的固體，氣體和泥漿的應用，POSI-flate膨脹式蝶閥是的。
該POSI-flate系列五百八十六分之五百八十五膨脹式蝶閥是專為zui苛刻的條件。座椅被設計用于重型應用和更高的操作壓力。標準閥門的尺寸范圍從2“（50mm）的24”（600毫米），并符合ANSI和公制法蘭標準。執(zhí)行器提供全系列，限位開關和控制，可滿足個人申請。
Posi-flate's unique butterfly valve design uses air pressure to expand the seat against the disc, providing even pressure distribution for a bubble-tight seal, every time. Because the seat makes only casual contact with the disc during valve opening and closing, there is minimal disc impingement. This is in contrast to conventional butterfly valves where disc impingement leads to shaving of the seat, decreasing the overall performance and valve life.
Substantially less torque is required to open and close the Posi-flate butterfly valve, thus a smaller actuator can be used resulting in lower overall valve cost.
In actual comparison tests and documented field applications, the Posi-flate butterfly valve outperformed all other valves. In fact, a Posi-flate valve life of one to three million cycles, even in extremely abrasive applications, is not uncommon. For dry solids, gases and slurry applications, the Posi-flate inflatable seated butterfly valve is unsurpassed.
The Posi-flate Series 585/586 inflatable seated butterfly valves are designed for the most severe conditions. The seat is designed for heavy duty applications and higher operating pressures. Standard valve sizes range from 2" (50mm) to 24" (600mm) and fit both ANSI and metric flanges. A full line of actuators, limit switches and controls are available to suit individual applications.
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