Overview

Series GD is a direct read flowmeter for liquids or gases available in either 65 or 150 mm scale lengths. Series GD flowmeters can be configured with a standard or precision control valve on either the inlet or no valve at all; fittings can be specified in either aluminum or stainless steel; O-rings and seals can be provided in Buna-N, Viton® or other optional elastomers.

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Features
• Standard direct read scales
• Scale length (approximate): 65 mm, 150 mm
• Flowmeter available with:
– No Valve
– Cartridge Valve
– Precision Control Valve
• Inlet valve Standard / Outlet valve available
• E-Z CHANGE design allows quick interchangeability of tube assemblies
• Glass tube allows compatibility with most gases and fluids
• Rotating lens allows 180º view with magnification




Specifications
Accuracy: 65 mm Scale ±5% of Full Scale; 150 mm Scale ±3% of Full Scale
Floats: Black Glass, Sapphire, Stainless Stel, Carboloy (Tungsten Carbide), Tantalum
Frame: Aluminum
End Blocks: Aluminum w/ Buna-N; Stainless Steel w/ Viton®
Standard Seals & Fittings: Aluminum w/ Buna-N; Stainless Steel w/ Viton®
Fittings: 1/8" FNPT
Tube: Borosilicate Glass
Valves (Optional): Standard Control Valve; Precision Control Valve
Temperature: 200º F / 93º C Maximum
Pressure: 200 psi/13.8 Bar Maximum

Maximum Ranges Available
Turndown ? 10:1
65 MM Tubes	See Table @ STP
150 MM Tubes	See Table @ STP

Flow Rates

65mm - Air

Model

Float

Float Dia.

ML/MIN

LPM

LPH

CCM

SCFH

GD60110

G

1/8"

2 - 50

.004 - .1

GD60130

ST

1/8"

1 - 150

GD60210

G

1/8"

5 - 100

GD60230

ST

1/8"

10 - 300

GD60310

G

1/8"

20 - 400

GD60320

S

1/8"

25 - 550

.05 - .5

25 - 550

.1 - 1.2

GD60410

G

1/8"

.1 - 1

20 - 900

.05 - 1.9

GD60420

S

1/8"

50 - 1200

GD60430

ST

1/8"

50 - 1800

GD60510

G

3/16"

.1 - 2.5

250 - 2500

.25 - 5.5

GD60540

C

3/16"

350 - 7250

GD60710

G

1/4"

200 - 6000

GD60730

ST

1/4"

.2 - 11.4

GD60820

S

1/4"

2 - 25

GD60830

ST

1/4"

4 - 40

GD60920

S

1/4"

1 - 20

GD60930

ST

1/4"

1 - 30

4 - 60

GD61040

C

1/4"

2 - 60

5 - 130

150mm - Air

Model

Float

Float Dia.

ML/MIN

LPM

LPH

CCM

SCFH

GD10110

G

1/8"

2 - 50

GD10210

G

1/8"

2 - 100

2 - 100

2 - 100

GD10220

S

1/8"

4 - 160

4 - 160

GD10230

ST

1/8"

.01 - .25

5 - 300

GD10310

G

1/8"

20 - 400

20 - 400

GD10320

S

1/8"

25 - 550

GD10330

ST

1/8"

30 - 850

.06 - 1.3

GD10420

S

1/8"

.1 - 1

50 - 1100

.05 - 2.4

GD10430

ST

1/8"

.25 - 1.7

GD10520

S

3/16"

.05 - 3.0

50 - 3000

.1 - 6

GD10530

ST

3/16"

100 - 4500

GD10560

G

3/16"

.05 - 2.5

GD10630

ST

3/16"

.1 - 6.6

GD10720

S

1/4"

.2 - 12

GD10760

G

1/4"

.25 - 10

GD10820

S

1/4"

1 - 30

GD10830

ST

1/4"

1 - 40

GD10840

C

1/4"

1 - 50

GD10850

T

1/4"

2000 - 66000

65mm - Argon
Model		Float		Float Dia.		CCM		LPM		SCFH
GD60420		S		1/8"				0.05 - 1
GD60510		G		3/16"				0.2 - 2
GD60730		ST		1/4"						0.5 - 20
GD61010		G		1/4"				1 - 20
GD61040		C		1/4"						5 - 110

150mm - Argon
Model		Float		Float Dia.		CCM		LPM		SCFH
GD10110		G		1/8"		1 - 40
GD10540		C		3/16"				0.5 - 5
GD10620		S		3/16"						0.1 - 8
GD10720		S		1/4"				1 - 10
GD10820		S		1/4"						1 - 55

65mm - Carbon Dioxide
Model		Float		Float Dia.		ML/MIN		CCM		LPM
GD60220		S		1/8"		6 - 180
GD60420		S		1/8"				10 - 1000
GD60830		ST		1/4"						0.5 - 16

150mm - Carbon Dioxide
Model		Float		Float Dia.		ML/MIN		CCM		LPM
GD10710		G		1/4"						.1 - 8
GD10810		G		1/4"						.25 - 20
GD10830		ST		1/4"						1 - 35
GD10840		C		1/4"						1 - 50

65mm - Helium
Model		Float		Float Dia.		ML/MIN		CCM
GD60130		ST		1/8"				2 - 155

150mm - Helium
Model		Float		Float Dia.		ML/MIN		CCM
GD10210		G		1/8"		2 - 100		2 - 100
GD10230		ST		1/8"				5 - 300
GD10240		C		1/8"				40 - 560

65mm - Hydrogen
Model		Float		Float Dia.		CCM		LPM		SCFH
GD60230		ST		1/8"		25 - 600
GD60240		C		1/8"				0.2 - 1
GD60510		G		3/16"						1 - 10
GD60520		S		3/16"				1 - 10

150mm - Hydrogen
Model		Float		Float Dia.		CCM		LPM		SCFH
GD10240		C		1/8"		20 - 2000		0.2 - 1
GD10730		ST		1/4"				1 - 62

65mm - Nitrogen

Model

Float

Float Dia.

ML/MIN

CCM

LPM

SCFH

GD60130

ST

1/8"

15 - 150

GD60210

G

1/8"

4 - 100

0.1 - 1.2

GD60320

S

1/8"

20 - 560

GD60430

ST

1/8"

100 - 1800

GD60510

G

3/16"

0.5 - 5

GD60530

ST

3/16"

0.4 - 10

GD60630

ST

3/16"

0.5 - 16

GD60730

ST

1/4"

3 - 25

GD60140

C

1/4"

13 - 130

150mm - Nitrogen

Model

Float

Float Dia.

ML/MIN

CCM

LPM

SCFH

GD10110

G

1/8"

2 - 50

GD10210

G

1/8"

2 - 100

GD10220

S

1/8"

1 - 160

GD10230

ST

1/8"

5 - 300

GD10330

ST

1/8"

30 - 900

GD10410

S

1/8"

20 - 900

GD10430

ST

1/8"

50 - 1750

GD10530

ST

3/16"

0.4 - 4.5

GD10710

S

1/4"

0.1 - 9

0.5 - 20

GD10810

S

1/4"

1 - 50

GD10840

C

1/4"

2 - 60

65mm - Oxygen

Model

Float

Float Dia.

ML/MIN

CCM

LPM

SCFH

GD60230

ST

1/8"

10 - 260

150mm - Oxygen

Model

Float

Float Dia.

ML/MIN

CCM

LPM

SCFH

GD10110

G

1/8"

2 - 45

GD10230

ST

1/8"

0.01 - 0.25

GD10420

S

1/8"

.02 - 1

GD10540

C

3/16"

0.5 - 5

GD10560

G

3/16"

0.5 - 2.5

GD10760

G

1/4"

0.25 - 10

GD10810

G

1/4"

0.5 - 22

GD10820

S

1/4"

1 - 30

GD10830

ST

1/4"

1 - 40

GD10830

C

1/4"

1 - 50

65mm - Water

Model

Float

Float Dia.

ML/MIN

LPM

CCM

GPM

GPH

GD60330

ST

1/8"

1- 20

.03 - 0.3

GD60430

ST

1/8"

2 - 50

GD60530

ST

3/16"

4 - 140

4 - 140

GD60610

G

3/16"

1 - 90

GD60630

ST

3/16"

10 - 220

GD60730

ST

1/4"

10 - 340

0.2 - 5

GD60930

ST

1/4"

25 - 875

0.5 - 14

GD61010

G

1/4"

25 - 575

GD61030

ST

1/4"

10 - 1300

GD61040

C

1/4"

5 - 115

GD61050

T

1/4"

50 - 2000

50 - 2000

.2 - .5

150mm - Water

Model

Float

Float Dia.

ML/MIN

LPM

CCM

GPM

GPH

GD10430

ST

1/8"

2 - 48

GD10530

ST

3/16"

2 - 130

GD10610

G

3/16"

1 - 75

GD10620

S

3/16"

0.5 - 7

GD10630

ST

3/16"

1 - 11

GD10640

C

3/16"

3 - 290

GD10730

ST

1/4"

10 - 520

GD10830

ST

1/4"

0.1 - 1.3

GD10850

T

1/4"

20 - 2080

 

Dimensions

 

GD Series 65mm Flowmeter

 

 

 

 

GD Series 150mm Flowmeter

Ordering Info

Model Code

Gas/Liquid

Units

End Blocks

Valve

O-Ring

GD

60110

A

C

S

V

V

Gas or Liquid	Units of Measurement	End Blocks Material (Wetted)	Valve Designation	O-Ring Material Used in Valve
A - Air	M - ml/min	A - Aluminum	V - Standard Valve (Inlet)	B - Buna-N
R - Argon	L - LPM	S - Stainless Steel	P - Precision Valve (Inlet)	V - Viton®
C - Carbon Dioxide	H - LPH		N - None	S - Special
H - Helium	C - CCM
Y - Hydrogen	F - SCFH
N - Nitrogen	P - GPM
O - Oxygen	G - GPH
W - Water