As an expert in instrument market, we are on of the expert stockiest & suppliers for Vane Type Flow Switches. We are certified dealers of DAG Process Instruments Pvt. Ltd.
DAG Flow 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 Microswitch (NO-NC-COM) change-over contacts and vice-versa. (Calibration has to be done against a Rotameter in work shop and is slightly settable). Mainly Flow-No Flow detection is achieved.
Flow of Fluid is important and not the Pressure in the system.The standard switch mounts on a 2” Pipe ‘Tee’, an SS Flow Vane / Paddle, IP66, Cast Aluminium enclosure, SPDT Microswitch. & ¾”ETF cable entry. (Flameproof Version to IS:2148 Gas Group I, IIA & IIB, T6)
Model decoding
|
WP/ |
Enclosure Weatherproof to IP66 |
|
FLP/ |
Enclosure Flameproof to Gr.IIC, T6 or |
|
FLP/ |
Enclosure Flameproof to Gr.IIA & IIB, T6 |
|
FS |
Flow Switch with SS flow Vane / Paddle |
|
-50V |
2” ANSI 150# RF CS Flanged (SS Optional) |
|
-75V |
3” ANSI 150# RF CS Flanged (SS Optional) |
|
-50VSC |
2” BSPM / NPTM (SS Optional) |
|
-40VSC |
: 1½" BSPM / NPTM (SS Optional) |
|
-25VSC |
: 1” BSPM / NPTM (SS Optional) |
Example :
FLP/FS-50V
Flameproof to Gr.IIA & IIB, T6
& Weatherproof to IP66
Flow Switch, (Flow/No-Flow Detecting)
2” ANSI 150# RF CS Flanged
Specifications
|
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) 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 |
Upto 5A 250VAC / 5A 24VDC / 0.5A 110VDC |
|
Contact |
Silver / Gold Plated / Hermetically Sealed |
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Differential |
Fixed minimum < 20% |
|
Repeatability |
± 2% |
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Temperature |
-10° to +100° C |
|
|
1½", 2”Flange (ANSI 150#, 300#,600# Optional) 2” BSPM / NPTM |
|
Cable Entry |
¾”ETF, ½”NPTF (Others through adapter) |