Nominal Diameter

Standard Flow Range (SFR)

Extended Flow Range (EFR)

Standard          Pressure Rating

(mm)

(in.)

Mark

(m3/h)

Mark

(m3/h) 

(MPa)

25

1

S1

3 to 30

W1

1.5 to 30

4.0

S2

4 to 40

W2

2 to 40

4.0

W3

0.5 to 4

4.0

W4

0.7 to 7

4.0

W5

1.5 to 30

4.0

40

1.5

S1

5 to 50

W1

2.5 to 50

4.0

S2

8 to 80

W2

4 to 80

4.0

50

2

S1

10 to 100

W1

5 to 100

4.0

S2

15 to 150

W2

8 to 150

4.0

65

2.5

S

15 to 200

W

10 to 200

1.6

80

3

S1

15 to 300

W1

10 to 300

1.6

S2

W2

15 to 350

1.6

100

4

S

20 to 400

W1

15 to 400

1.6

W2

20 to 500

1.6

125

5

S

20 to 800

W1

18 to 800

1.6

W2

20 to 900

1.6

150

6

S

50 to 1000

W1

25 to 1000

1.6

W2

50 to 1200

1.6

200

8

S

150 to 2000

W

80 to 2500

1.6

250

10

S

200 to 3000

W

150 to 3500

1.6

300

12

S

250 to 4000

W

200 to 4000

1.6