Vapor Control Valves for Gauging
and Sampling Petroleum and Chemicals

  • MMC B-type vapor-control valves
  • Positive shut-off units
  • Tri-mode tank gauging
  • Ullage, interface, temperature and oxygen sensing
  • B-type, Micro “B” and the MMC (Asia) F50 are 2-inch (50mm) full-bore valves
  • The Mini Micro “B” is 1 1/2-inch (38mm)
  •  Flanged Valves for easy installation and accurate positioning
  • Constructed of grade 316 stainless steel with a bronze cap
  • Stainless steel ball valves with Teflon ball valve seals
  • Available in 1/2 or 1/3 liter sampling, size 2 inch with MMC sampling tapes

MMC Type “B” Vapor Control Valve Dimensions

Note: H1 dimension fixed by gauging tape construction.

More Specifications:

Viton ® used for all other seals. A stainless steel cap and a selection of other seal materials are optional. (Viton ® is a registered trademark of DuPont Dow Elastomers.)

Mounting Flange Dimensions:

  • 2″ “B” Valve (2318-2S-F316-BC) – 6″ (152) O.D., BC 4 3/4″ (121) – Bolt Holes (4) 3/4″ (19).
  • 2″ Micro “B” (2318-2S-FMS-BC) – Bolt Holes (4) 3/4″ (19).
  • 1 1/2″ Mini Micro “B” (2318-2S-F316BC) – 5″ (127) O.D., BC 3 7/8″ (98) – Bolt Holes (4) 5/8 (16).
  • 2″ F50 50mm MMC-A (JIS) – 155mm (6.1″) O.D., BC 120mm (4.72″) – Bolt Holes (4) 19 (0.75″).

Weights:

  • 2″ “B” Valve (2318-2S-F316-BC) – 14 lb. (6.35 kg).
  • 2″ Micro “B” (2318-2S-FMS-BC) – 13 lb. (5.9 kg).
  • 1 1/2″ Mini Micro “B” (2318-2S-F316BC) – 9 lb. (4.1 kg).
  • 2″ F50 MMC-A (JIS) – 19.8 lbs. (9 kg).
  • Pressure Rating:
  • 150 psi (10kg/cm sq), bubble tight at 2 psi (0.14kg).

Suitable for positive tank isolation, MMC B-type vapor-control valves are positive shut-off units that support Tri-mode tank gauging functions (ullage, interface & temperature) as well as oxygen sensing. They are available in three models. The original B-type, Micro “B” and the MMC (Asia) F50 are all 2-inch (50mm) full-bore valves. The Mini Micro “B” is 1 1/2-inch (38mm). All valves are flanged for ease in installation and accurate positioning. Constructed of 316 stainless steel with a bronze cap, they have stainless steel ball valves with Teflon seals. In addition, 1/2 or 1/3 liter sampling is available in all 2 inch sizes with the use of MMC sampling tapes. All gauging tapes fit directly into any type of MMC vapor-control valve.

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