Universal Flow Meter by Yokogawa
The RAMC variable area flow meter (rotameter) by Yokogawa is a truly universal flow meter, ideal for measuring air and highly aggressive liquids in low and high-temperature applications. The RAMC features a float blockage detection system, all mechanical design, and easily replaceable components, making it easy to maintain while delivering high reliability and performance.
Yokogawa’s variable area flow meters adhere to the highest operational safety standards, and the RAMC is no exception with wetted parts available in a variety of materials and optional intrinsically safe outputs.
The RAMC combines all the advantages of the variable area principle with robust design and reliable measurement. A truly universal flowmeter for gases, liquids, and steam applications.
Details
All Mechanical Design
The RAMC has a simple, robust design with three common components, making it ideal for low and high temperature applications, as well as making it highly reliable and reducing maintenance costs.
Field Replaceable Components
Many components of the RAMC are replaceable, including the float, scale, eprom (for eletronic transmitters), limit switches, and housing.
Float Damping System (for Gas Applications)
The float damping system is used in gas applications to avoid bouncing and putting a lot of wear on the float itself. The system is retrofittable and exchangeable at any time without requiring the operator to replace the float, and it can withstand a pressure maximum of up to 40 bar absolute. With this damping system, no recalibration is necessary after installation of the damping, and it is available to add on to old Yokogawa rotameters.
Float Blockage Indication System
This function is used for the electronic transmitter and detects when fluctuations remain under the preset level, activating an alarm.
Indicator Features & Options
- Optional Electronic transmitter with HART protocol, various power supplies and signal outputs for 4-20ma and HART 5 and 7
- Indicator is available in stainless steel and aluminum
- Adjustable Limit Switches (optional), achieves SIL2 rating
- Broad range of hazardous area approvals (ATEX, IECEx, FM, etc.)
Process Connection Diameter | Flanged Process Connection Dimension L in mm/inches | NPT Process Connection Dimension L in mm/inches |
---|---|---|
1/2" | 250/9.8 | 295 /11.6 |
3/4" | 250/9.8 | 295 /11.6 |
1" | 250/9.8 | 295 /11.6 |
1 1/4" | 250/9.8 | 295 /11.6 |
1 1/2" | 250/9.8 | 295 /11.6 |
2" | 250/9.8 | 310 / 12.2 |
2 1/2" | 250/9.8 | 325/ 12.7 |
3" | 250/9.8 | 325/ 12.7 |
3 1/2" | 250/9.8 | N/A |
4" | 250/9.8 | N/A |
5" | 250/9.8 | N/A |
6" | 260/10.2 | N/A |
Part | Standard | Optional |
---|---|---|
Flanges | Stainless Steel | Titanium, Hastelloy, Monel |
Threads NPT | Stainless Steel | ** |
Metering Tube | Stainless Steel | Titanium, Hastelloy, Monel, PTFE Coated |
Float | Stainless Steel | Titanium, Hastelloy, Monel, PTFE Coated |
Indicator Housing | Stainless Steel / Aluminum | ** |
Air (60° F, 14.7 PSIG) | |||
---|---|---|---|
Max. Flow in SCFM | Connection Size | ||
2.5 | 1/2" Flanged | Request a Quote | |
5 | 1/2" Flanged | Request a Quote | |
8 | 1/2" Flanged | Request a Quote | |
13 | 1/2" Flanged | Request a Quote | |
25 | 1/2" Flanged | Request a Quote | |
32 | 1" Flanged | Request a Quote | |
45 | 1" Flanged | Request a Quote | |
70 | 1" Flanged | Request a Quote | |
100 | 2" Flanged | Request a Quote |
Air (20° C, 1 bar abs.) | |||
---|---|---|---|
Max. Flow in Nm3/h | Connection Size | ||
2.8 | 1/2" Flanged | Request a Quote | |
6 | 1/2" Flanged | Request a Quote | |
9 | 1/2" Flanged | Request a Quote | |
15 | 1/2" Flanged | Request a Quote | |
28 | 1/2" Flanged | Request a Quote | |
36 | 1" Flanged | Request a Quote | |
55 | 1" Flanged | Request a Quote | |
75 | 1" Flanged | Request a Quote | |
110 | 2" Flanged | Request a Quote |
Water (60° F, 14.7 PSIG) | |||
---|---|---|---|
Max. Flow in GPM | Connection Size | ||
34 GPH | 1/2" Flanged | Request a Quote | |
1.1 | 1/2" Flanged | Request a Quote | |
2.2 | 1/2" Flanged | Request a Quote | |
4 | 1/2" Flanged | Request a Quote | |
5.5 | 1" Flanged | Request a Quote | |
10 | 1" Flanged | Request a Quote | |
15 | 1" Flanged | Request a Quote | |
22 | 2" Flanged | Request a Quote | |
38 | 2" Flanged | Request a Quote |
Water (20° C, 1 bar abs.) | |||
---|---|---|---|
Max. Flow in l/m | Connection Size | ||
2.2 | 1/2" Flanged | Request a Quote | |
4.2 | 1/2" Flanged | Request a Quote | |
8.5 | 1/2" Flanged | Request a Quote | |
17 | 1/2" Flanged | Request a Quote | |
22 | 1" Flanged | Request a Quote | |
38 | 1" Flanged | Request a Quote | |
55 | 1" Flanged | Request a Quote | |
85 | 1" Flanged | Request a Quote | |
140 | 2" Flanged | Request a Quote |
Yokogawa can size and build a metal or glass Rotameter for your specific application. Whether it is a gas or liquid, extremely hot or cold for any industry you may be in. Please fill out as much information as you can on the form below and we will quickly contact you and assist with getting you the Rotameter best suited to your application.
To receive a quote, click on the link below and complete the questionnaire in the message field.
Resources
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Downloads
Instruction Manuals
- Metal Rotameter RAMC (7.9 MB)
- Metal Rotameter RAMC with Profibus PA (3.1 MB)
- Metal Rotameter RAMC with FOUNDATION Fieldbus (1.7 MB)
General Specifications
- Metal Rotameter RAMC (2.6 MB)
Software
- PROFIBUS EDD file (148 KB)
- FOUNDATION Fieldbus EDD file - RAMC Rotameter
- PROFIBUS EDD file (258 KB)
- PROFIBUS GSD/EDD file - RAMC Rotameter EDD file - Type P
- PROFIBUS GSD/EDD file - RAMC Rotameter GSD file - Type P
- PROFIBUS DTM file - RAMC Rotameter -Type P
- PROFIBUS GSD file (7 KB)
- PROFIBUS GSD file (19 KB)
- PROFIBUS GSD/EDD file - RAMC Rotameter EDD file - Type G
- PROFIBUS GSD/EDD file - RAMC Rotameter GSD file - Type G
- PROFIBUS DTM file - RAMC Rotameter -Type G
- Yokogawa DTM HART
- Rotameter / RotaMASS - Sizing Program - Updated 12/01/13 (9.5 MB)
Videos
The Variable Area Flowmeter is one of the oldest and mature principles in flow measurement with its simple design: a float rises inside a conically shaped glass tube as the flow increases and its position on a scale can be read off as the flow rate.In the 1990s, Yokogawa strengthened its focus on flowmeters through cooperation with and the eventual acquisition of the German flowmeter manufacturer ROTA. In so doing Yokogawa gained access to 100 years of flowmeter expertise and completed its flowmeter portfolio by adding the Rotameter (variable area) and Rotamass (Coriolis) product lines.
Our experts review the theory behind flow measurement technologies. Discuss common flow application challenges and evaluate the different technologies when selecting a flow meter. They also give examples of best installation practices for successful measurements.
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