Miniature Metal Tube Variable Area Flowmeter - MMT18 / MMT19
iSOLV MMT18 VA flowmeter measures volumetric flow rate of liquid and gases that operates on the float principle. It features a metal tube, in which a float is allowed to move freely up and down. The float reaches a stable position when the upward force exerting by the flowing liquid equals the weight of the float. The float position is transmitted by a magnetic coupling system to the scale. The rotational movement of the follower magnet system transmitted to the indicator is linearised and the flow rate is indicated directly on the scale.
- Suitable for liquids and gases
- Suitable for installation in which flow direction is from bottom to top
- Tapered metering section of rugged all-metal construction
- Standard Features - MMT18
- With horizontal connections
- A needle valve at the inlet or bottom front of connection block - Option
- Can be supplied without valve, or with outlet needle valve at the top connection block (outlet)
- A maximum of two adjustable limit switches (L1, L2). The set limits are indicated on the scale.
- Addition of a differential pressure regulator to maintain constant flow rate at fluctuating inlet/outlet pressure - Standard Features - MMT19
- With vertical connections
- Without needle valve - Option
A maximum of two adjustable limit switches (L1, L2). The set limits are indicated on the scale.
• Chemical
• Waster / Wastewater
• Marine / Offshore
• Pulp and Paper
• Pharmaceutical
• Food and Beverage
• Oil and Gas
| Technical Details | |||||||
| Full-scale Range (100% Values) | |||||||
| Water at 20°C (68°F) | 3 to 100 l/h (0.013 to 0.44 US GPM) | ||||||
| Air at 1.013 bar abs., 20°C (14.7 psia, 68°F) |
50 to 3400 l/h (0.031 to 2.11 SCFM) | ||||||
| Turn-down Ratio | 10:1 | ||||||
| Accuracy Class (to VDI/VDE Code 3513, Sh. 2) |
4 | ||||||
| E a = AC (25 + 0.75)/F E a = Error (% actual) F = % Full scale flow AC = Accuracy Class |
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| Scale Graduation | Flow units | ||||||
| Max. Allowable Operating Pressure at 20°C (68°F). 130 bar (1885 psig) |
Test pressure is 1.3 times the specified operating pressure. Information on higher pressure levels supplied on request |
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| Max. Process Temperature | |||||||
| Without Limit Switch Option | – 80°C to +150°C (–112°F to +302°F) | ||||||
| With Limit Switch Option (Ambient Temperature Ta) |
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| Connections | |||||||
| Standard | ¼” NPT female thread | ||||||
| Materials | |||||||
| Connection Blocks, Valve, Plug | CrNi steel 1.4571 (316Ti) | ||||||
| Housing | Die-cast zinc | ||||||
| Cone, Float | CrNi steel 1.4571 (316 Ti) | ||||||
| Gaskets | PTFE, other upon request | ||||||
| Limit Switch | Type: SJ2-SN |
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| Number, Max. | 2 | ||||||
| Electrical Connection | Right-angle plug, style to DIN 43650/ISO 4400, with PG 11 cable gland | ||||||
| Max. Signal Cable Length | 1.5 m (5 ft) non-detachable | ||||||
| Protection category to EN 60529/IEC 529 IP 65, equivalent to NEMA 12 and 13 An isolation switching amplifier is required to operate the SJ2-SN |
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| Note: Specifications are subject to change without notice. | |||||||
| Download Catalog | |
| MMT18/MMT19 |  |
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For all inquiries, you may contact us through Telephone, Email or Live Chat Support.
Operating Hours
Monday to Friday: 8.00am to 5.30pm
Technical Support (After Office Hour)
Tel: (65) 9876 6258
Contact Informations
| By Phone / Fax | By Email | By Live Chat | |
| Tel: (65) 6553 0366 Fax: (65) 6553 0828 |
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