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Float Switches
Float Switches
Float Switches are vane/paddle design used to detect flow/no-flow condition in a flow line. With sufficient differential pressure upstream and downstream of a flow vane, fluid flow is established. Increase in fluid flow moves paddle towards a side, which in turn moves a magnetic sleeve, attached through a connecting link, upwards inside a process seal pipe. When this magnetic sleeve enters the flux zone, a permanent magnet swings towards the seal pipe. This movement actuates a micro switch (NO-NC-COM) changeover contacts and vice-versa.
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- Enclosure: cast aluminium, epoxy powder coated (SS/MS on request)
- Flameproof to IS: 2148, Gr.IIA & IIB or Gr.IIC, temperature class T6
- Weatherproof to IS: 13947; IP65, IP66 (IP67 on request)
- Mounting: on-line (Tapping of 2†flanged pipe with 100 mm length)
- Mounting: on-line (1", 1½" or2†BSPM / NPTM on welded Socket)
- Adjustment: internal
- Element: flow vane/paddle, 25, 33mm x length of pipe ID
- Material: SS-vane/paddle
- Switch: SPDT snap acting micro, two SPDT optional
- Rating: up to 5A 250VAC / 5A 24VDC / 0.5A 110VDC
- Contact: silver/gold plated/hermetically sealed
- Differential: fixed minimum < 20%
- Repeatability: ± 2%
- Temperature: -10° to +100° C
- Process Connection: 1½", 2â€Flange (ANSI 150#, 300#, 600# Optional) 2†BSPM / NPTM
- Cable entry: ¾â€ETF, ½â€NPTF (Others through adapter)