NR_Type0 pages
MWit MM TlPt fUUK mummmmsi
Operation Principle
The variable area flow meter content a float & taper tube. The fluid flow through the taper tube
and force up to the float. The flow rate is measured as a function of the area of the opening.
This area displayed as the float that is free to move to produce the varying area.
Technical Data
A. Measuring The Flow Rate For
• Gases & Liquid
• Chemical process system
•Water treatment system
• Industrial flow system
B. Service Condition
• Viscosity: <, 3 cP
• Max. working temperature: Metal: 100'C; Plastic: 60*C
• Max. working pressure:
(1) Body material: NRS: 15 kg/cm2,
NRI: 15 kg/cm2, NRV: 6 kg/cm2
(2) Glass tube: Borosilicate glass 6 kg/cm2
(3) P.Ctube: 10 kg/cm2, Instant pressure: 15 kg/cm2
Dimensions
C. Alarm Switch Available (N.Q)
• Switch rating: AC 125V 0.5A/DC 100V10W/
Max. DC 250V <lmA
D. Accuracy: ±2.5% F.S
unit=mm
Range *»\. | HaO(Max.) L/MIn | Air (Max.) NL/MIn | Dimension | |||
Flange | L | H | A | |||
6A | 0.03-0.3 | 0.5-5.0 | 1/4" | 170 | 103 | |
10A | 0.1-1.0 | 2-20 | 3/8" | 170 | 103 | |
15A | 1-10 | 20-200 | 1/2" | 240 | 160 | |
20A | 2-20 | 30-300 | 3/4" | 280 | 190 | |
25A | 5-50 | 100-1000 | 1" | 280 | 190 | |
32A | 10-100 | 200-2000 | 1W" | 300 | 205 | |
40A | 20-200 | 300-3000 | 114" | 330 | 205 | |
50A | 40-400 | 500-5000 | 2" | 350 | 205 |
Ordering Information
NR-Type
Code
Model
Coda
Float Material
NRS
Wetted parts are stainless steel
(1) SS304 (2) SS316 (3) P.V.C (4} P.P.
NRI
Wetted parts are steel
(5)PVDF (6) Teflon (0) option
NRV
Wetted parts are plastic
Code
Size
(1) 6A (2) IDA (3) 15A (4) 20A
(5)25A (6)32A (7)40A (8) 50A
Code
Connection Thread
(1) PT Male (2) PT Female (3) NPT Male (4) NPT Female
Code
Body Material
(1JSS304 (2) SS316 (3) SS316L (4) P.V.C
(5) P.P (6) PVDF (7) Option
Code
Indicating Tube Material
(1) Borosilicate glass (2) PC
Code
Seal Material
(l)NBR (2) Viton (3} Teflon
Code
Protection Supporter Material
(DSS304 (2) SS316
Coda
Flow Range
0.03-400 L/min for liquid
0.5-5000 NL/min for gases
Code
1R
2R
Alarm Switch
One setting point
Two setting point
Without alarm
NR-Type
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