Conformity to the pressure directive, General technical data, Diameters available – Burkert Type S039 User Manual

Page 4: Materials, Dimensions

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Fluid temperature

Fluid pressure

-10 +10 +30 +50 +70 +90 +110

0

2

1

3

4

5

6

7

8

9

10

11

A

bar

PVDF (PN 10)

°C

Fig. 1: Fluid pressure / temperature dependency curve

for fittings S039 used on their own

conformity to the pressure
directive

The S039 fitting complies with article 3 of §3 from 97/23/
CE directive.
Acc. to the 97/23/CE pressure directive, the device can
only be used in the following cases (depending on max.
pressure, pipe diameter and fluid):

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type of fluid

conditions

Fluid group 1 § 1.3.a only DN ≤ 25
Fluid group 2 § 1.3.a DN ≤ 32

or DN > 32 and PNxDN ≤ 1000

Fluid group 1 § 1.3.b PNxDN ≤ 2000
Fluid group 2 § 1.3.b DN ≤ 200

General technical data

Max. Fluid viscosity

300 cSt

Type of fluid

Clean, neutral or slightly aggressive

Rate of solid particles in

the fluid

max. 1 %

Max. particle size

0,5 mm

Measurement range of

the flow rate in the pipe

0,3 to 10 m/s

Accuracy, with standard

K factor

± (1 % of the full scale* + 3 % of the

measured value)

Linearity

≤ ±

1 % of the full scale (10 m/s)*

Repeatability

±

0,4 % of the measured value*

* determined in the following reference conditions: medium =
water, water and ambient temperatures 20 °C, min. upstream and
downstream distances respected, appropriate pipe dimensions.

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diameters available

The diameters available depend on the design of the S039
fitting.

Refer to the graph on page 20 to determine the
appropriate DN of the pipe and fitting.

Connections of the S039 fitting

DN available

External threads, G or metric

DN06

External threads, G or NPT

DN08

Internal threads, G or NPT

DN15 to DN50

materials

Sensor holderPaddle-wheel Axis

Seal

Body

Fig. 2: Sectional drawing of the S039 fitting

Component

Material

Seal

FKM or EPDM

Body

Brass (CuZn39Pb2)

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Component

Material

Screws

Stainless steel (316L - 1.4404)

Paddle-wheel

PVDF

Shaft and bearings

Ceramics (Al

2

O

3

)

dimensions

Table 1: Dimensions of the fittings with G or NPT

internal thread connections

DN

[mm]

P [mm] A [mm] D [inch]

L [mm]

15

34,5

90,0

G 1/2 or NPT 1/2

16,0

20

32,0

94,0

G 3/4 or NPT 3/4

17,0

25

32,2

104,0

G 1 or NPT 1

23,5

32

35,8

119,0

G 1 1/4 or NPT 1 1/4

23,5

40

39,6

129,0

G 1 1/2 or NPT 1 1/2

23,5

50

45,7

148,5

G 2 or NPT 2

27,5

A

L

D

P

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