Home Page

Full Product Listing

Sales and Service Locations

Company Background

Related Products
Tanktop Gauging and Sampling Stations for land-based petro/chem storage tanks

MMC Logo 2 spec sheet slug
Version 01
MMC International Corporation
60 Inip Drive, Inwood, New York 11096-0664
Phone: 800-645-7339 Fax: 516-371-3134


UI Oil-Water Interface Gauging Tapes
For Tankers, Shore Terminals and
Environmental Applications

These portable FLEXI-DIP® "UI" gauging tapes provide a convenient and accurate means for measuring ullage and a lower oil-water interface. They are suitable for marine and land-based tank facilities and also for environmental monitoring well applications

MMC's UI gauging tapes are capable of detecting all floating and non-conductive hydrocarbons. Each instrument is designed for ease of use. Gauging for liquid or Interface level is accomplished simply and quickly. When the electronic probe is lowered and senses a hydrocarbon, a steady horn tone is sounded and a yellow LED illuminates. When sensing an Oil-water interface, or a heavier than water non-conductive liquid, an intermittent horn tone sounds and a red LED begins flashing.

This gauging system is certified as "Intrinsically Safe" for use in all class IIC hazardous atmospheres

Restricted UI gauging tape with type MB vapor valve barrel, is shown at left side of the above illustration.

Standard Applications:

Open & Environmental UI Gauging Tapes

Other Applications:
  • Open gauging ("O" type) (Non-Toxic product vapors only).
  • Environmental gauging ("E" type) ( Typical well monitoring vapors only). Low cost polyethlyene coated tape available, all other tapes are Tefzel®, (Dupont Corp.), coated and anti-static treated by MMC.

Accuracy: (All Models)

  • Tape & Sensor: +/- 1/8" (+/- 3mm), +/- 0.01% of F.S. tape LGT (F.S. = Full Scale).
Sensor: Dual function Sonic, Liquid level & Interface.
Battery: 9-Volt Duracell MN1604.
Operation: U-Ullage, I-Interface (oil/water), with Auto-Shut Off.
Tape Lengths:
  • Single-Sided: 50 ft. (15m), 75 ft. (25m), 100 ft. (30m), 40mm Special Restricted (50m-70m).
  • Single-Sided: Environmental, 100 ft. engineering scale 1 ft. divided into 10 parts. See application note above.
Typical Weights:
  • 50 ft/15m - "R" 8lbs (3.6kg) "F" 7 lbs. (3.2kg).
  • 100 ft/30m - "R" 9lbs (4.1 kg) "F" 8lbs. (3.6kg).
  • 50m special - "R" 11 lbs (5kg) "F" 10 lbs. (4.5kg).
Approvals: Intrinsically safe--BASEEFA, CSA, SAA.
IMO--USCG, LLoyds.
Type App'd--BV, DNV, CCS, NKK.

All MMC Flexi-Dip Gauging Tape systems come with a sturdy, molded plastic carrying case for convenient transportation and safe storage, and include a spare battery and instruction manual.

Back to top

© 1996-2018 MMC International Corporation