Dwyer Instruments V6EPS-S-S-2-FS, V6EPS-S-S-1-S, V6EPS-S-S-1-MI, V6EPS-S-S-2-MI, V6EPS-S-S-2-S User manual

Series V6 FLOTECT®Flow Switch

FRONT VIEW DETAIL SIDE VIEW DETAIL

CLAMP

SCREW

LOCKWASHER

CONDUCTOR

Specifications - Installation and Operating Instructions

The Series V6 FLOTECT®Flow Switch is an inexpensive, explosion-proof flow

switch for use on air, water or other compatible gases and liquids. Three configu­rations are available - 1. Factory installed in a tee. 2. With a trimmable vane for
field adjustment and installation in a suitable tee. 3. Low flow models with an inte­gral tee and adjustable valve. All are available with an optional enclosure which is
UL and CSA listed, or Directive 94/9/EC (ATEX) compliant for

II 2 G Ex d IIC T6 Gb

Process Temp≤75°C or IECEx compliant for Ex d IIC T6 Gb Process Temp ≤ 75°C.

Bulletin E-22

PECIFICATIONS

S
Service: Gases or liquids compatible with wetted materials.

etted Materials: Standard V6 Models: Vane: 301 SS; Lower Body: brass or 303

W

S; Magnet: ceramic; Other: 301, 302 SS; Tee: brass, iron, forged steel, or 304 SS.

S
V6 Low Flow Models: Lower Body: brass or 303 SS; Tee: brass or 304 SS; Magnet:

eramic; O-ring: Buna-N standard, Fluoroelastomer optional; Other: 301, 302 SS.

c
Temperature Limits: -4 to 220°F (-20 to 105°C) Standard, MT high temperature

ption 400°F (205°C) (MT not UL, CSA, ATEX, IECEx or KC) ATEX Compliant AT,

o
IECEx IEC Option and KC (KC Option), Ambient Temperature -4 to 167°F (-20 to

5°C) Process Temperature: -4 to 220°F (-20 to 105°C).

7

ressure Limit: Brass lower body with no tee models 1000 psig (69 bar), 303 SS

P

lower body with no tee models 2000 psig (138 bar). Brass tee models 250 psi (17.2

ar), iron tee models 1000 psi (69 bar), forged and stainless steel tee models 2000

b
psi (138 bar), low flow models 1450 psi (100 bar).

nclosure Rating: Weatherproof and Explosion-proof. Listed with UL and CSA for

E

Class I, Groups A, B, C and D; Class II, Groups E, F, and G. (Group A on stainless
steel body models only).

518 II 2 G Ex d IIC T6 Gb Process Temp≤75°C Alternate Temperature Class

0

T5 Process Temp≤90°C, 115°C (T4) Process Temp ≤105°C consult factory. EC-type

ertificate No.: KEMA 04ATEX2128.

C
ATEX Standards: EN 60079-0: 2009; EN 60079-1: 2007.

ECEx Certified: For Ex d IIC T6 Gb Process Temp≤75°C Alternate Temperature

I

Class T5 Process Temp≤90°C, 115°C (T4) Process Temp≤105°C consult factory.

IECEx Certificate of Conformity: IECEx DEK 11.0039;

ECEx Standards: IEC 60079-0: 2007; IEC 60079-1: 2007;

I

orean Certified (KC) for: Ex d IIC T6 Gb Process Temp≤75°C;

K

TL Certificate Number: 2012-2454-75.

K

Switch Type: SPDT snap switch standard, DPDT snap switch optional.

lectrical Rating: UL models: 5A @125/250 VAC. CSA, ATEX and IECEx models:

E

5A @ 125/250 VAC (V~); 5A res., 3A ind. @ 30 VDC (V ). MV option: .1A @ 125
VAC (V~). MT option: 5A @125/250 VAC (V~). [MT option not UL, CSA, ATEX or

ECEx].

I
Electrical Connections: UL models: 18 AWG, 18˝ (460 mm) long. ATEX/CSA
/IECEx models: terminal block.

Upper Body: Brass or 303 stainless steel.
Conduit Connections: 3/4˝ male NPT standard, 3/4˝ female NPT on junction box

models.

Process Connection: 1/2˝ male NPT on models without a tee.
Mounting Orientation: Switch can be installed in any position but the actuation/de-

actuation flow rates in the charts are based on horizontal pipe runs and are nomi­nal values.
Set Point Adjustment: Standard V6 models none. Without tee models vane is trim­mable. Low flow models are field adjustable in the range shown. See set point
charts on opposite page.

Weight: 2 to 6 lb (.9 to 2.7 kg) depending on construction.
Options not Shown: Custom calibration, bushings, PVC tee, reinforced vane,

DPDT relays.

INSTALLATION

Unpack and remove any packing material found inside lower housing or tee.

Switch can be installed in any position but the actuation/deactuation flow rates in
the charts are based on horizontal pipe runs and are nominal values. For more pre­cise settings, units can be factory calibrated to specific flow rates.

V6 Models with Tee are supplied in 1/2˝ - 2˝ NPT sizes. Install in piping with arrow
pointing in direction of flow.

V6 Low Flow Models have 1/2˝ NPT connections and are field adjustable. Install
in piping with arrow pointing in direction of flow. To adjust, loosen the four socket
head cap screws on bottom. The adjustment valve rotates 90° between “O” (open)
and “C” (closed). See flow charts for approximate ranges. Tighten screws once the
required flow rate has been set.

V6 with Field Trimmable Vane. These models enable the installer to choose
approximate actuation/deactuation points by trimming the full size vane at appro­priate letter-designated marks on a removable template. Flows are defined in the
following charts. Note that the charts are based on either brass or cast iron reduc­ing tees or stainless or forged steel straight tees with bushings where necessary.
Install in piping with arrow pointing in direction of flow.

When bushings are used, they must be back drilled to allow proper clearance for
unrestricted vane travel. Bore the I.D. to 13/16˝ (20 mm) on 1/2˝ x 3/4˝ bushings or
1˝ (25 mm) on larger bushings. The depth of the bore must leave internal threads
9/16˝ (14 mm) high for proper engagement between the lower housing of the
switch and the bushing. Check for proper vane travel and switch operation after
installation.

W.E. ANDERSON DIV., DWYER INSTRUMENTS, INC.

P.O. BOX 358 • MICHIGAN CITY, INDIANA 46360 U. S. A.

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ELECTRICAL CONNECTIONS

Connect wire leads in accordance with local electrical codes and switch action
required. N.O. contacts will close and N.C. contacts will open when flow increases
to the actuation point. They will return to “normal” condition when flow decreases
to the deactuation point. Black = Common, Blue = Normally Open and Red =
Normally Closed.

For units supplied with both internal ground and external bonding terminals, the
ground screw inside the housing must be used to ground the control. The external
bonding screw is for supplementary bonding when allowed or required by local
code. When external bonding conductor is required, conductor must be wrapped a
minimum of 180° about the external bonding screw. See below. Some CSA listed
models are furnished with a separate green ground wire. Such units must be
equipped with a junction box, not supplied but available on special order.

Phone: [phone] www.dwyer-inst.com
Fax: [phone] e-mail: [e-mail]

C-Type Certificate, IECEx and KC Installation Instructions:

E

able Connection

C

The cable entry device shall be certified in type of explosion protection flameproof

nclosure “d”, suitable for conditions of use and correctly installed. For Ta ≥ 65°C

e
cable and cable gland rated ≥ 90°C shall be used.

onduit Connection

C

An Ex d certified sealing device such as a conduit seal with setting compound shall

e provided immediately to the entrance of the valve housing. For Ta ≥ 65°C wiring

b
and setting compound, in the conduit seal, rated ≥ 90°C shall be used.

Note: ATEX, IECEx and KC units only: The temperature class is determined by the

aximum ambient and or process temperature. Units are intended to be used in

m

mbient of -20°C≤ Tamb ≤75°C. Units may be used in process temperatures up to

a
105°C providing the enclosure and switch body temperature do not exceed 75°C.

he standard Temperature Class is T6 Process Temp ≤75°C. Alternate

T
Temperature Class of T5 Process Temp ≤90°C and 115°C (T4) Process Temp

105°C are available consult factory.

≤

Refer to Certificate No: IECEx DEK 11.0039 for conditions of safe use for IECEx

ompliant units.

c

ll wiring, conduit and enclosures must meet applicable codes for hazardous

A
areas. Conduits and enclosures must be properly sealed. For outdoor or other

ocations where temperatures vary widely, precautions should be taken to prevent

l
condensation inside switch or enclosure. Electrical components must be kept dry
at all times.

CAUTION: To prevent ignition of hazardous atmospheres, disconnect the device

rom the supply circuit before opening. Keep assembly tightly closed when in use.

f

AINTENANCE

M

Inspect and clean wetted parts at regular intervals. The cover should be in place
at all times to protect, the internal components from dirt, dust and weather and to

aintain hazardous location ratings. Disconnect device from the supply circuit

m
before opening to prevent ignition of hazardous atmosphere. Repairs to be con-

ucted by Dwyer Instruments, Inc. Units in need of repair should be returned to the

d
factory prepaid.

Example

Series
Construction
Upper
Body Material
Lower
Body Material
Circuit (Switch)
Type
Process
Connection
Size

Process
Connection
Type

Switch Options

Options

* Options that do not have ATEX, IECEx or KC.
Attention: Units without the “AT” suffix are not Directive 94/9/EC (ATEX) compliant. These units are not intended for use in potentially hazardous
atmospheres in the EU. These units may be CE marked for other Directives of the EU.

V6
V6

EP

EP

B

2

B

B
S

B
S

B

S

S
D

1
2
3
4
5
6
LF

0
B
FS
MI
PVC
PVCSW
S
S150

MT

MV
MT

V6EPB-B-S-2-B-MT flow switch; brass upper housing, brass lower housing, brass
tee with 3/4˝ NPT connections, SPDT snap switch, and high temperature option
Series V6 flow switch
Explosion Proof and Weatherproof
Brass
303 Stainless Steel
Brass
303 Stainless Steel
SPDT
DPDT
1/2˝ NPT
3/4˝ NPT
1˝ NPT
1-1/4˝ NPT
1-1/2˝ NPT
2˝ NPT
Low Flow Model (1/2˝ NPT connections)
No Tee, Male NPT Connection, Field Trimmable Vane
Brass Tee
Forged Steel Tee
Iron Tee
PVC Tee with NPT*
PVC Tee with sweat joints*
304 Stainless Steel Tee
304 Stainless Steel 150# Tee
(For LF Model no tee material chosen, tee material matches lower housing choice)
Gold Contacts on snap switch for dry circuits (see specifications for ratings)
High Temperature switch rated 400°F (205°C) (see specifications for ratings)*
ATEX approved construction (weatherproof and explosion-proof junction box)

AT

CSA approved construction (weatherproof and explosion-proof junction box)*

CSA

IECEx approved construction (weatherproof and explosion-proof junction box)

IEC

Korean certified (KC) approved construction (with JCT option standard)

KC

Custom Vane

CV

Flow Test Report

FTR

Ground Lead*

GL

Customer Information on standard nameplate

ID

Weatherproof and explosion-proof junction box, left side

JCTLH

Orifice Brass

ORFB

Orifice Stainless Steel

ORFS

Reinforced Vane

RV

Terminal Block Connector*

TBC
VIT
018
020
022
022A
031

®

O-rings in place of Buna-N on low flow models

Viton
.018 Spring
.020 Spring
.022 Spring
.022 Spring with Alnico
.031 Spring

V6 With Tee

Cold Water - Factory Installed Tee

pproximate actuation/deactuation low Rates

A

PM upper, M

G

1/2˝ NPT

1.5 1.0

0.34 0.23

ir-Factory Installed Tee

A

pproximate actuation/deactuation flow rates

A

SCFM upper, NM

1/2˝ NPT

6.5 5.0
.18 .14

6 Low Flow, Field Adjustable

V

Cold Water - Low Flow Models

pproximate actuation/deactuation flow rates

A

GPM upper, M

Minimum

.04 .03
.009 .007

ir - Low Flow Models

A

Approximate actuation/deactuation flow rates

CFM upper, NM

S

Minimum

.18 .15
.005 .004

®

magnet

3

HR lower

/

3/4˝ NPT

2.0 1.25

0.45 0.28

3

/M lower

3/4˝ NPT

10.0 8.0
.28 .23

3

/HR lower

Maximum

.75 0.60

0.17 0.14

3

M lower

/

Maximum

2.70 2.0
.08 .06

1˝ NPT

3.0 1.75

0.68 0.40

1˝ NPT

14 12
.40 .34

1-1/4˝ NPT

4.0 3.0

0.91 0.68

1-1/4˝ NPT

21 18
.59 .51

1-1/2˝ NPT

33 30
.93 .85

1-1/2˝ NPT

6.0 5.0

1.36 1.14

2˝ NPT

43 36

1.19 1.02

2˝ NPT

10.0 8.5

2.27 1.93

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6 With Field Trimmable Vane

V

old Water - Brass or Cast Iron Reducing Tee

C

Approximate actuation/deactuation flow rates

PM upper, M

G

ane

V

ull

F

/2˝ NPT

1

3

HR lower

/

3/4˝ NPT

1˝ NPT

Size
a

b

c

d

e

f

g

h

i

j

k

1.3

0.3
1

0.4
2

0.5

2.6

0.6
.5

3

0.8
.3

4

.8

1.0

.4

l

.6

1

m

0.4

2.2

n

.5

0

3.0

o

.7

0

2.3

0.5
3

0.7
3

0.9

.5

3

.1

3

0.8

0.7

.0

4

3.5

0.9

.8

0

4.6

4.2

.04

1

.95

0

.6

5

.2

5

1.3
.3

6

1.43

8.0
.8

1

1.2

6.1
1

7.5
1

.39

.7

.1

.8

-1/4˝ NPT

1

4.3
.0

1

4.9
.1

1

5.5

1.2
.0

6

1.4
.0

7

1.6
.0

8

1.8

0.0

1

2.3

2.0

1

2.7

3.9
0

4.4
1

5.0

1.1
5

1.3
6

1.5

7.6
1
9

2.0
1

2.3

.9

.0

.6

.6

.7
.0

0.0

1-1/2˝ NPT

6.2

5.5

.4

1

1

7.0

6.5

.6

1

1

.6

7

7

1.7

1.6

.0

8

7

1.8

1.7

.0

9

8

2.0

1.9

10.0

9.0

.3

2

2

13.0

11.0

.0

3

2

15.0

13.0

.4

3

3

Air - Brass or Cast Iron Reducing Tee

pproximate actuation/deactuation flow rates

A

SCFM upper, NM

2˝ NPT

.0

9

2.0
.5

9

2.2

0.0

1

2.3

1.0

1

.5

2

12.0

.2

.7

2

13.0

.5

.0

3

.1

14.0
.2

3

.3

.5

8

.9

1

.0

9

2.0
.3

9

2.1

0.0

1

2.3

0.0

1

.3

2

11.0
.5

2

12.0
.7

2

1/2˝ NPT

.2

.0

.5

.0

.8

3

6.4

0.11

.18

0

.0

7

10.0

0.20

.28

0

.0

9

12.0

0.25

.34

0

/4˝ NPT

3

3.0

1

0.37

5.0

1

0.42

0.0

2

0.57

2.0

1

0.34

4.0

1

0.40

6.0

1

0.45

3

/M lower

16.0
.45

0

18.0
.51

0

19.0

0.54

2.0

2

0.62

5.0

2

0.71

2.0

3

0.91

˝ NPT

1

15.0

0.42

6.0

1

0.45

7.0

1

0.48

20.0
.57

0

23.0

0.65

8.0

2

0.79

-1/4˝ NPT

1

0.0

2

0.57

1.0

2

0.59

23.0
.65

0

24.0
.68

0

28.0
.79

0

33.0

0.93

38.0
.08

1

45.0
.27

1

8.0

1

0.51

9.0

1

0.54

21.0
.59

0

22.0
.62

0

25.0

0.71

0.0

3

0.85

35.0
.99

0

42.0

1.19

-1/2˝ NPT

1

7.0

2

.76

0

30.0
.85

0

32.0
.91

0

34.0

0.96

7.0

3

1.05

9.0

3

1.10

1.0

5

1.44

69.0
.95

1

5.0

2

0.71

8.0

2

.79

0

30.0
.85

0

32.0
.91

0

34.0

0.96

6.0

3

1.02

5.0

4

1.27

7.0

5

1.61

2˝ NPT

9.0

3

.10

1

40.0
.13

1

42.0
.19

1

50.0
.42

1

5.0

5

1.56

37.0
.05

1

38.0
.08

1

0.0

4

1.13

4.0

4

1.25

6.0

4

1.30

Cold Water - Stainless or Forged Steel Straight Tee and Bushing

Approximate actuation/deactuation flow rates

GPM upper, M

Vane
Full
Size
a

b

c

d

e

f

g

h

i

j

k

1/2˝ NPT

3

/HR lower

3/4˝ NPT

2.0

0.5

2.5

0.6

3.5

0.8

7.0

1.6

10.0

2.3

1.5

0.3

2.0

0.5

3.0

0.7

5.5

1.2

8.0

1.8

1˝ NPT

2.8

0.6

3.4

0.8

4.0

0.91

5.0

1.1

6.5

1.48

9.0

2.0

2.4

0.5

3.0

0.7

3.6

0.82

4.5

1.0

6.1

1.39

8.2

1.9

1-1/4˝ NPT

5.0

4.5

1.1

1.0

5.5

5.0

1.2

1.1

6.2

5.7

1.4

1.3

6.8

6.3

1.5

1.4

8.5

7.8

1.9

1.8

10.0

9.2

2.3

2.1

12.0

10.0

2.7

2.3

1-1/2˝ NPT

8.5

1.9

9.2

2.1

9.8

2.2

12.0

2.7

13.0

3.0

7.8

1.8

8.6

2.0

9.0

2.0

10.0

2.3

11.0

2.5

2˝ NPT

Air - Stainless or Forged Steel Straight Tee and Bushing

Approximate actuation/deactuation flow rates

SCFM upper, NM

1/2˝ NPT

3/4˝ NPT

8.0

0.23

11.0

0.31

14.0

0.40

27.0

0.76

39.0

1.10

6.5

0.18

10.0

0.28

13.0

0.37

24.0

0.68

36.0

1.02

3

/M lower

12.0

0.34

14.0

0.40

16.0

0.45

19.0

0.54

26.0

0.74

32.0

0.91

1˝ NPT

10.0

0.28

12.0

0.34

14.0

0.40

17.0

0.48

24.0

0.68

30.0

0.85

1-1/4˝ NPT

21.0

18.0

0.59

0.51

22.0

20.0

0.62

0.57

24.0

22.0

0.68

0.62

28.0

26.0

0.79

0.74

33.0

30.0

0.93

0.85

37.0

34.0

1.05

0.96

43.0

40.0

1.22

1.13

1-1/2˝ NPT

33.0

0.93

39.0

1.10

42.0

1.19

51.0

1.44

55.0

1.56

2˝ NPT

30.0

0.85

36.0

1.02

38.0

1.08

46.0

1.30

50.0

1.42

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3-3/8 [85.72]

DIA.

13/16 [20.63]

3/4 FEMALE

NPT

9-1/4

[235.0]

"B"

"A"

4

-1/2

[

114.3]

3

-15/16

[

100.0]

INLET

1/2˝ FEMALE

NPT

3

-5/8 [92.07]

3/4˝ NPT

1-1/8 SQ.

[28.57]

OUTLET

1/2˝ FEMALE

NPT

3-3/8 [85.72]

DIA.

8

-5/8

[

219.1]

7.250

[

184.2]

INLET

1/2˝ FEMALE NPT

3-5/8 [92.07]

O

UTLET

1

/2˝ FEMALE

N

PT

6-1/8

[155.5]

1

-1/8 SQ.
[

28.57]

3

/4˝ FEMALE

N

PT

EXTERNAL GROUND

13/16 [20.63]

3/4˝ NPT

5-3/8

[136.5]

"B"

"A"

.625

[15.87]

1.875

[47.62]

DIMENSIONS

6-5/16

[160.34]

LOCKING COLLAR
ASSEMBLY

3/4 NPT
UPPER HOUSING

S

WITCH SUPPORTS

SPDT (OR DPDT)
SNAP SWITCH

MAGNET LEVER PIN

MAGNET LEVER
ASSEMBLY

MAGNETS
LOWER HOUSING – BRASS

OR STAINLESS STEEL
VANE SPRING

VANE PIVOT PIN
VANE PIVOT

BRACKET

SNAP RING

1/2 NPT

STAINLESS
S

TEEL VANE

OVERALL LENGTH WITH
1-1/49 TEE CONNECTION
APPROXIMATELY 89

SPDT DPDT

DPDT

eries V6 FLOTECT

S

®

low Switch

F

V6 with Field

rimmable Vane

T

V6 Low Flow with CSA,

TEX Conduit Enclosure

A

Brass/Ductile Iron

Pipe
Size

Dim. A

1/2˝

2-1/4 (57)

3/4˝

2-3/8 (60)

1˝

2-1/2 (64)

1-1/4˝

2-5/8 (67)

1-1/2˝

2-7/8 (73)

2˝

3 (76)

V6 Low Flow

Dim. B

1-1/8 (29)
1-1/4 (32)
1-3/8 (35)
1-1/2 (38)
1-5/8 (41)
1-7/8 (48)

Forged/Stainless Steel

Dim. A

2-1/4 (57)
2-5/8 (67)
3 (76)
3-1/2 (89)
4 (102)
4-3/4 (121)

Dim. B

1-1/8 (29)
1-7/8 (47)
2-1/8 (54)
2-1/2 (64)
2-3/4 (70)
3-1/8 (79)

Malleable Iron

Dim. A

2-1/2 (64)
2-5/8 (67)
2-7/8 (73)
3 (76)
3-1/4 (83)
3-1/2 (89)

Dim. B

1-1/4 (32)
1-3/8 (35)
1-1/2 (38)
1-3/4 (44)
1-7/8 (48)
2-1/8 (54)

Trimmable Vane

©Copyright 2014 Dwyer Instruments, Inc. Printed in U.S.A. 9/14 FR# 82-440805-00 Rev. 10

W.E. ANDERSON DIV., DWYER INSTRUMENTS, INC.

P.O. BOX 358 • MICHIGAN CITY, INDIANA 46360 U. S. A.

Find Quality Products Online at: [e-mail]

V6 with Tee

V6 with Tee and CSA,

ATEX Conduit Enclosure

Phone: [phone] www.dwyer-inst.com
Fax: [phone] e-mail: [e-mail]

www.GlobalTestSupply.com

Terminal Connections

CSA, ATEX Enclosures