Georg Fischer 144 Data sheet

GF Piping Systems

Electrically Actuated Lug Style
Butterfly Valve

Type 144

General

The Type 144 electrically actuated lug style butterfly valve
from GF Piping Systems is adaptable to a variety of conditions
and applications. It is available in PVC, CPVC, PP, and PVDF
materials. With the optional positioner, it goes from being a
simple on/o valve to a precise flow control device integrated
into systems controlled by PLCs and other computerized
instrumentation.

Features

• Size: 2”–12”

• Voltage: 24 AC or DC, 100-230 AC

• Emergency manual override

• Outer body: Glass-filled PP with overmolded SS316 lugs

• Body materials: PVC, CPVC, PP and PVDF

• Stem: 316 stainless steel

• Seal: EPDM or FPM; PTFE seals available upon request

• Duty Cycle: 2”–6” 50%, 8”–12” 35%

Optional Features

• Limit switches

• Positioner (voltage or current)

• Position feedback

• Fail safe return: Back-up battery pack

• Heating element

• Smart modules: Cycle monitoring, cycle counter, cycle
exension, motor current monitoring

Technical Data

180

165

150

135

120

105

90

75

60

45

30

15

0

-50 -30 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140

temperature in °C

permissible pressure in psi

ABS, PVC, CPVC

(useful life 25 years; medium water)

CPVC

ABS

PVC

Y (psi)

Pressure-temperature diagrams

PP, PVDF (useful life 25 years; medium water)

180

165

150

135

120

105

90

75

60

45

30

15

0

permissible pressure in psi

temperature in °C

ABS, PVC, CPVC

180

165

150

135

120

105

90

75

60

45

30

15

0

permissible pressure in psi

temperature in °C

ABS

PP

(useful life 25 years; medium water)

CPVC

PVC

PVDF

Flow characteristics

100

90

80

70

60

50

40

Cv value (%)

30

20

10

0

0102030405060708090 100

opening angle (%)

Pressure loss

DN 50 / 2"

DN 65 / 2½"

X (US gal./min)

DN 100 / 4"

DN 80 / 3"

X (l/min)

DN 125 / 5"

DN 150 / 6"

DN 250 / 10"

DN 200 / 8"

DN 300 / 12"

2.64 26.4 264.2 2642
1

0.1

Y (bar)

0.01

0.001

Operating torque

14.5

1.45

0.145

0.0145

000001000010001001

P0737409

Cv values

DN mm Inch d mm Cv 100 gal/min

(Δp = 1 psi)

50 2 63 103
65 2½ 75 154
80 3 90 210
100 4 110 455
125 5 140 805
150 6 160 1162
200 8 225 2772
250 10 280 3570
300 12 315 5110

2

For non-GF actuators, breakaway torques 2.5 to 4 times the value of the
moving torque must be taken into consideration, depending on the
application conditions (e.g. control time, medium, temperature, etc.).