::: "DWYER" RM Rate-Master Flowmeters :::

       
       
 
 
"DWYER" RM Rate-Master Flowmeters

　

 ■ 제조국 / 제조사 ■ Korea / 대한과학
 ■상품명 ■ RM Rate-Master Flowmeters
 ■ 짧은 소개 The Dwyer Rate-Master line of direct reading precision flowmeters incorporates many unique user features at moderate cost. These low cost flowmeters are ideal for general use.
Easy to read design - The direct reading scales eliminate troublesome conversions. The scales are brushed aluminum, coated with epoxy and the graduations are on both sides of the indicating tube. Special integral flow guides stabilize the float throughout the range to keep it from hunting or wandering in the bore. The float is highly visible against a white background.

　

■ Features

Construction assures accuracy - All Rate-Master flowmeter bodies are injection molded of tough, clear, shatter-proof polycarbonate plastic around a precision tapered pin. Critical internal diameter of the variable orifice tube is held within ±0.0004" The result is accurate and repeatable readings. The single piece plastic body is mounted to a stainless steel backbone into which pipe thread inserts are welded to absorb piping torque. Precision metering valves of brass or stainless steel (specify BV or SSV on order) are available as an optional extra and permit precise flow adjustments. For vacuum applications, Model RMA units are available with top mounted valves (specify TMV). The small Series RMA models are accurate within ±4% of full scale reading; Series RMB within + 3%; large Series RMC within ±2%.

Installation is simple - The Rate-Master can be neatly through-panel mounted to keep flow tube centers in the same plane as the panel surface or surface mounted on the panel by means of tapped holes in the backbone. When through-panel mounted, the bezel automatically positions the instrument at the correct depth in the panel cutout. Surface mounted units can also be held in place by the piping. All mounting hardware plus installation and operating instructions are included.

Cleaning is easy - To release the plastic flowmeter body from the stainless steel backbone, just remove four screws. Pipe thread flow connections remain undisturbed. Remove the slide cover and the plug ball stop, clean the flow tube with soap and water and reassemble. It's that simple.
Easy-to-interchange bodies - Within a given Series, Rate-Master flowmeter bodies can be instantly interchanged. Simply "un-plug" the body from backbone and replace it with another. "O" rings provide a tight seal on inlet and outlet. Piping remains undisturbed. Interchangeability is useful where different scale ranges are sometimes required at the same location in the laboratory or plant.
Top Mounted Metering Valves - Same precision construction for vacuum applications.
Adjustable pointer flags - Red-lined pointer flags provide quick visual reference to a required flow level. Of clear plastic, they snap into place inside bezel and slide to desired level.

■  규격 (Specifications)




ODERING INFORMATION

　

SPECIFICATIONS
Meter Body, Bezel, and Tube Polycarbonate
Wetted Metal Parts Stainless Steel (except for optional brass valves)
Floats St. Steel, Blk. Glass, Alum., K Monel, Tung Carbide
Float Stops Polycarbonate
Pipe Connections Model RMA, 1/8", Model RMB, ¼", Model RMC, ½"
"O" Rings Neoprene and Buna N
Fittings Stainless Steel brazed to Stainless Steel backbone plate
Rivets Stainless Steel, set into slots
Scale Brushed Aluminum - Clear Epoxy Coated
Knobs ABS Plastic
Pressure Rating RMA 100 P.S.I., RMB 70 P.S.I., RMC 35 P.S.I. max
Temperature Rating To 130°F. maximum
Accuracy Model RMA, 4%; Model RMB, 3%; Model RMC, % of full scale
OPTIONS AND ACCESSORIES CODE
Metering Valve Brass BV
Stainless Steel SSV
Top Mounted Valve Stainless Steel - available only on RMA for air
(vacuum applications)		 TMV
Pointer Flag Polycarbonate PF

　

 
DIMENSION IN INCHES
  Model RMA Model RMB Model RMC
A 4 9/16 8½ 15 1/8
B 3
1/8 NPT Conn.		 6 7/16
¼ NPT Conn.		 12¼
½ NPT Conn.
C 1 5/8
10-32 Thds.		 3 15/16
¼-20 Thds.		 8¾
3/8-24 Thds.
D 3/8 5/8 1
E 1 1/16 1 7/8 2¾
F 1 3/16 1¾ 2¼
G ¾ 1 1 7/16
H 1 1 7/16 1 31/32
I
(OPEN)		 1 3/8 1 13/16 2½
(BV or SSV MODELS ONLY)
J ¾ 1¼ 2
K 4 13/16 8¾ 15 3/8
L 1 1½ 2¼

　

Series RM RATE-MASTER® Models and Ranges  STOCKED MODELS in bold
Model RMA-2" Scale Model RMB-5" Scale Model RMC-10" Scale
Range
SCFH Air		 Ordering
Number		 Range
SCFH Air		 Ordering
Number		 Range
SCFH Air		 Ordering
Number
.05-.5 1 .5-5 49 5-50 101
.1-1 2 1-10 50 10-100 102
.2-2 3 3-20 51 20-200 103
.5-5 4 4-50 52 40-400 104
1-10 5 10-100 53 60-600 105
2-20 6 20-200 54 100-1000 106
5-50 7 40-400 55 120-1200 107
10-100 8 50-500 56 200-1800 108
15-150 9 60-600 57 SCFM Air
20-200 10 Gal. Water
per hour		 1-10 121
CC Air/min. 2-20 122
5-50 151* 1-12 82 3-30 123
10-100 150* 1-20 83  
30-240 11 4-40 84 Gal. Water
per hour
50-500 12 10-100 85
100-1000 13   2-20 134
200-2500 14 8-90 135
LPM Air Gal. Water
per minute
.5-5 26
1-10 21 .1-1 141
2-25 22 .2-2.2 142
5-50 23 .4-4 143
5-70 24 .8-7 144
10-100 25 1.2-10 145
CC Water/min  
5-50 32
10-110 33
20-300 34
Gal.Water/hr.
1-11 42
2-24 43
4-34 44
5-50 45

　

CAT No. Description 단위/갯수 Price[VAT포함]

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