Nova-Tech RITEFLOW FLOWMETERS AND KITS User Manual

I N S T R U C T I O N S

RITEFLOW® FLOWMETERS

AND KITS

661 Route 23 South, Wayne, NJ 07470-6814 USA

TEL: 1-800-4BEL-ART • FAX: 973-694-7199 • www.belart.com

Contents

BEL-ART RITEFLOW® FLOWMETERS AND KITS ................................................2

BEL-ART RITEFLOW

PRINCIPLE OF OPERATION..................................................................................3

SPECIFICATIONS .................................................................................................4

FLOWTUBES ........................................................................................4

PLAIN ENDS ........................................................................................4

GUARDED ............................................................................................5

MOUNTED FLOWMETER - TEFLON

MOUNTED FLOWMETER - ALUMINUM .............................................6

OPERATION .........................................................................................................7

BEFORE USE ........................................................................................7

READING A FLOWRATE.......................................................................7

PLAIN ENDS ........................................................................................8

GUARDED ............................................................................................8

MOUNTED ...........................................................................................8

FLOWMETER KITS ..............................................................................................9

DISASSEMBLY AND ASSEMBLY........................................................................9

GUARDED FLOWMETER......................................................................9

MOUNTED FLOWMETER...................................................................10

GASKETS ...........................................................................................10

CLEANING AND CHANGING FLOATS...............................................................11

FLOWMETER CLEANING KIT ............................................................................11

FLOAT INFORMATION, 65MM MODELS ..........................................................12

FLOAT INFORMATION, 150MM MODELS ........................................................12

TO ORDER ADDITIONAL FLOATS......................................................................12

PREDICTABILITY FLOW TABLE 65MM .............................................................13

PREDICTABILITY FLOW TABLE 150MM ...........................................................14

REPLACEMENT PARTS - RITEFLOW

FLOWMETERS .................................................................3

..................................................5

FLOWMETERS......................................15

BEL-ART RITEFLOW

FLOWMETERS

FLOWMETERS AND KITS

150mm

40401-0035 Riteflow

H H40403-0055 Riteflow

lowmeter Plain Ends 150mm Size 1

Flowmeter Guarded, Complete 150mm Size 1 H40401-0075 Riteflow®Flowmeter Plain Ends 150mm Size 2 H40403-0095 Riteflow®Flowmeter Guarded, Complete 150mm Size 2 H40401-0125 Riteflow®Flowmeter Plain Ends 150mm Size 3 H40403-0145 Riteflow

Flowmeter Guarded, Complete 150mm Size 3 H40401-0215 Riteflow®Flowmeter Plain Ends 150mm Size 4 H40403-0235 Riteflow®Flowmeter Guarded, Complete 150mm Size 4 H40401-0305 Riteflow®Flowmeter Plain Ends 150mm Size 5 H40403-0325 Riteflow®Flowmeter Guarded, Complete 150mm Size 5 H40409-0000 Riteflow®Bench Mounted Aluminum Kit 150mm H40407-0035 Riteflow

Bench Mounted Aluminum 150mm Size 1 H40407-0075 Riteflow®Bench Mounted Aluminum 150mm Size 2 H40407-0125 Riteflow®Bench Mounted Aluminum 150mm Size 3 H40407-0215 Riteflow®Bench Mounted Aluminum 150mm Size 4 H40407-0305 Riteflow®Bench Mounted Aluminum 150mm Size 5 H40408-0000 Riteflow®Bench Mounted Teflon®Kit 150mm H40405-0035 Riteflow

Bench Mounted Teflon® 150mm Size 1 H40405-0075 Riteflow®Bench Mounted Teflon® 150mm Size 2 H40405-0125 Riteflow®Bench Mounted Teflon® 150mm Size 3 H40405-0215 Riteflow®Bench Mounted Teflon

150mm

Size 4

H40405-0305 Riteflow®Bench Mounted Teflon® 150mm Size 5

65mm

H40400-0005 Riteflow®Flowmeter Plain Ends 65mm Size 1 H40400-0010 Riteflow®Flowmeter Plain Ends 65mm Size 2 H40400-0015 Riteflow®Flowmeter Plain Ends 65mm Size 3 H40400-0020 Riteflow®Flowmeter Plain Ends 65mm Size 4 H40400-0025 Riteflow®Flowmeter Plain Ends 65mm Size 5 H40400-0030 Riteflow®Flowmeter Plain Ends 65mm Size 6 H40406-0005 Riteflow H40406-0010 Riteflow®Aluminum Frame 65mm Size 2 H40406-0015 Riteflow®Aluminum Frame 65mm Size 3 H40406-0020 Riteflow®Aluminum Frame 65mm Size 4 H40406-0025 Riteflow®Aluminum Frame 65mm Size 5 H40406-0030 Riteflow H40404-0005 Riteflow®Teflon®Frame 65mm Size 1 H40404-0010 Riteflow®Teflon®Frame 65mm, Size 2 H40404-0015 Riteflow®Teflon®Frame 65mm Size 3 H40404-0020 Riteflow®Teflon®Frame 65mm Size 4 H40404-0025 Riteflow®Teflon®Frame 65mm Size 5 H40404-0030 Riteflow®Teflon®Frame 65mm Size 6 H40402-0005 Riteflow H40402-0010 Riteflow®Flowmeter Guarded Complete 65mm Size 2 H40402-0015 Riteflow®Flowmeter Guarded Complete 65mm Size 3 H40402-0020 Riteflow®Flowmeter Guarded Complete 65mm Size 4 H40402-0025 Riteflow®Flowmeter Guarded Complete 65mm Size 5 H40402-0030 Riteflow®Flowmeter Guarded Complete 65mm Size 6

Aluminum Frame 65mm Size 1

Aluminum Frame 65mm Size 6

Flowmeter Guarded Complete 65mm Size 1

BEL-ART RITEFLOW®FLOWMETERS

Bel-Art Flowmeters feature precision formed glass flowtubes and are available in three formats: Plain Ends which is a glass flowtube with floats and Teflon® end plugs; Guarded, which has a plastic safety guard over the flowtube; and Mounted, which has an anodized aluminum frame to hold the flowtube and facilitate mounting the unit on an instrument panel or use with a base, free-standing on a lab bench.

PRINCIPLE OF OPERATION

Bel-Art Flowmeters are fabricated from heavy walled, shock resistant, borosilicate glass with permanently fused ceramic scales. Bores are uniformly tapered with internal rib guides. Floats are retained by Teflon 20:1 by replacing the glass float with stainless steel float or Carboloy (heavy gauge steel) for size 5 (150mm), size 6 (65mm).

Flowmeters must be installed in a vertical position in the line carrying the gas or liquid to be measured. Gas or liquid enters through the opening at the bottom end, and exits through the opening at the top end. Upward pressure causes the float to rise. Flow takes place through the circular area between the float and the inside surface of the Flowmeter. As the float rises, the flow area increases, due to the tapered bore of the Flowmeter. Dynamic equilibrium results when the upward force, due to the air or liquid pressure, balances the weight of the float.

The vertical position of the float at equilibrium corresponds exclusively to one flow rate. This flowrate is obtained by reading the scale etched on the flowtube calibration chart for the particular fluid.

plugs. Useful metering ratios are 10:1 or better. Ratio can be increased to

Flow rates are determined by reading the scale graduation at the center of the spherical float. To increase the accuracy and reproduction of the metering a vertical locator line is incorporated into the geometry of the scale graduation.

SPECIFICATIONS

FLOWTUBES

Flowtubes are fabricated from heavy walled, shock resistant, borosilicate glass with permanently fused on ceramic scales. Bores are uniformly tapered with internal rib guides. Floats are retained

by Teflon changes.

PLAIN ENDS

Maximum operating pressure: 200 PSIG

Maximum operating temperature: 250°F (121°C)

Materials that come in contact with fluids are:

Flowtubes: Borosilicate glass Floats: Glass (color: black) and Stainless Steel (color:

mm size 1,2,3,4, & 5

Glass (color: black) and Carboloy (color: metallic,

plugs. Flow ranges are linear; low differential pressures are independent of flow rate

metallic) with 150mm size 1,2,3,4, and 65

magnetic) with 150mm size 5 and 65mm size 6

Float Stops: Teflon

Dimensions:

Overall Length: 65mm scale = 80mm (3 3/16”)

150mm scale = 190mm (7 1/2”)

Size 65mm Tube 150mm Tube

Inlet/Outlet Inlet/Outlet Inlet/Outlet Inlet/Outlet Inches mm Inches mm

1 3/8” / 3/8” 8.5 / 8.5 3/8” / 3/8” 8.5 / 8.5

2 3/8” / 3/8” 8.5 / 8.5 3/8” / 3/8” 8.5 / 8.5

3 3/8” / 3/8” 8.5 / 8.5 3/8” / 3/8” 8.5 / 8.5

4 3/8” / 3/8” 8.5 / 8.5 1/2” / 1/2” 12.7 / 12.7

5 31/64” / 15/32” 12.3 / 11.9 1/2” / 9/16” 12.7 / 14.3

6 9/16” / 1/2” 14.3 / 12.7 --- ---

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