Electric retractable butterfly, SD943H electric retractable valve, electric butterfly valve manufacturer

 Electric retractable butterfly, SD943H electric retractable valve, electric butterfly valve manufacturers electric retractable Profile: SD943H electric retractable flanged pipe thermal expansion valve having a compensation function, can be directly input 220V power switch volume control, also built servo module, input control signal (4 ~ 20mADC or 1 ~ 5VDC) and single-phase power to control the operation. For temperature ≤80 ℃, nominal pressure ≤1.6MPa food, pharmaceutical, chemical, oil, electricity, textile, paper and other water supply and drainage, gas pipes for regulating traffic and closure of media role. Electric retractable butterfly features: novel design, reasonable, unique structure, light weight, easy operation, open and close quickly; telescoping valve can be adjusted and the closure in addition to the role of the temperature difference between the compensation arising from pipeline expansion and contraction functions, but also for the installation replacement, valve maintenance convenience. Adjustable sealing parts replacement, reliable sealing performance characteristics. Electric retractable butterfly Standard: Design Standard: GB / T12238-1989; JB / T8527-1997 flange size: GB / T9113.1-2000; GB / T9113.2-2000; GB / T9115.1-2000; GB / T9115.2-2000 length of the structure: GB / T12221-1989 pressure test: GB / T13927-1992; JB / T9092-1999 valve electric retractable parameters: Nominal diameter DN (mm): 50 ~ 2000 Nominal pressure PN (MPa) : 0.6 1.0 1.6 Test pressure strength test: 0.9 1.5 2.4 Seal test: 0.66 1.1 1.76 gas seal test: 0.6 0.6 0.6 Suitable temperature: ≤80 ℃ Applicable medium: air, water, steam, gas, oil and the like. Drive Type: manual, worm gear, gas transmission, electric drive.