WIS World Industrial Store
Dwyer

V4

Flotect« vane operated flow switch

SPECIFICATIONS FOR PIPES FROM 1-1/2" TO 20"
Service: gases or liquids compatible with wetted materials.
Wetted materials:
Vane: 316 SS.
Body: Brass or 316 SS standard.
Magnet Keeper: 430 SS standard.
Temperature limit: -4 to 275°F (-20 to 135°C) standard. MT high temperature  option 400°F (205°C, MT option NOT UL,CSA, ATEX).
Pressure limit: brass body 1000 psig (69 bar), 316 SS body 2000 psig (138 bar).
Enclosure rating: weatherproof and explosion-proof. listed with UL and CSA for class I, groups C and D; class II, groups E, F, and G.
ATEX: 0344  II 2 G EEx d IIB T6
-20°C≤Tamb≤75°C, EC-Type certificate No.: KEMA 03ATEX 2383. Order ATEX option separately.
Switch type: SPDT snap switch
Electrical Rating: UL, FM ATEX 10A @ 125/250 VAC. CSA models: 5A @ 125/250 VAC; 5A res, 3A ind @ 30 VDC. 5A ind. @ 30 VDC. MT.
Option: 5Aò125/250 VAC.
Electrical Connections: UL and CSA models: 16 AWG, 6" (152 mm) long. ATEX: terminal block.
Conduit connection: 3/4" female NPT.
Process connection: 1-1/2" male NPT.
Mounting orientation: within 5° of vertical for proper operation.
Set point adjustment: for universal vane five vane combinations.
Weight: 4 lb 8 oz (1.9 kg).
Agency approvals: UL, CSA, CE, FM, and ATEX.


Models in stock In Stock n/d Out of Stock

Disp. Code Description Price % Discount Net Price
in stock 1136
V4-2-U

Body: brass. Universal vane.

349,00 € 0% (1-9) 349,00 €
(10-24) 328,06 €
(25-100) 310,61 €
Selected:
n/d 539
V4-2-U-MT

Body: brass. MT version: for high temperatures. Max temperature: 400° F (205°C). Universal vane.

389,00 € 0% (1-9) 389,00 €
(10-24) 365,66 €
(25-100) 346,21 €
Selected:
in stock 244
V4-SS-2-U

Body: 316 SS. Universal vane.

498,00 € 0% (1-9) 498,00 €
(10-24) 468,12 €
(25-100) 443,22 €
Selected:
n/d 3388
V4-SS-2-U-MT

Body: 316 stainless steel. MT version for high temperatures. Max Temperature: 400° F (205°C). Universal vane.

539,00 € 0% (1-9) 539,00 €
(10-24) 506,66 €
(25-100) 479,71 €
Selected:
in stock 2977
V4-2-U-AT

Body: brass. Universal vane. Version: ATEX approuved.

429,00 € 0% (1-9) 429,00 €
(10-24) 403,26 €
(25-100) 381,81 €
Selected:
in stock 1176
V4-SS-2-U-AT

Body: 316 Stainless steel. Universal vane. Version: ATEX approuved.

579,00 € 0% (1-9) 579,00 €
(10-24) 544,26 €
(25-100) 515,31 €
Selected:
 

* Price are VAT excluded.

in stock In Stock
n/d Out of Stock

Values shown in both charts are nominal.
If normal flows exceed actuation rates by less than 10%, custom vanes are recommended.
Figures are based on standard vertical installation in a 1-1/2" threaded branch connection in a horizontal run of pipe.

 
 APPROXIMATE ACTUATION/DEACTUATION FLOW RATES FOR COLD WATER.
TOP FIGURES IN SCFM. DOWN FIGURES IN LPM.
 VANE LAYERS  1.5" PIPE  2" PIPE 3" PIPE  4" PIPE 6" PIPE 8" PIPE 10" PIPE   12" PIPE 14" PIPE 
 7-3
26.67-11.67
 15-8
56.7-30
45-22
167-83.3
95-40
367-150
210-120
800-450
375-175
1417-667
600-300
2267-1133
900-450
3400-1700
 1200-600
4550-2267
 1 & 2   7-4
26.7-15
23-14
86.7-53.3

 50-35
190-132

130-90
500-333
230-150
867-567
450-250
1700-950
650-350
2467-1317
 900-500
3400-1900
 1, 2,& 3     11-7
41.7-26.7
27-19
102-71.7
 80-60
300-233
160-115
600-433
300-180
1133-683
450-275
1700-1033
600-350
2267-1317
 1, 2, 3 & 4      

17-12
65-45

 60-45
233-167

120-90
450-333
230-150
867-567
310-200
1167-750
430-280
1633-1067
1, 2, 3, 4 & 5         40-30
152-113
 80-65
300-250
135-100
517-383
200-140
750-533
290-200
1100-750 
 
 

 APPROXIMATE ACTUATION/DEACTUATION FLOW RATES FOR COLD WATER.
RED FIGURES IN GPM. BLACK FIGURES IN LPM.

 VANE LAYERS  16" PIPE 18" PIPE  20" PIPE 
1400-800
5300-3033 
2000-1000
7567-3783 
 2400-1200
9083-4550
 1 & 2  1200-650
4550-2467
1450-800
5483-3033 
 1800-1000
6817-3783
 1, 2, & 3  750-450
2750-2083
 1000-600
3783-2267
1200-700
4550-2650 
 1, 2, 3 & 4 550-360
2083-1367 
700-450
2650-1700
 
850-550
3217-2083 
1, 2, 3, 4 & 5  360-250
1367-950
460-325
1733-1233 
 575-400
2183-1517

 Actuation rates are based on cold water at a specific gravity of 1.0. For fluids of different specific gravity, actuation rates may be approximated by dividing the rate shown by the square root of the specific gravity.