Closed gauging tape is shown connected to Micro "B" valve.
Suitable for positive tank isolation, MMC B-type vapor-control valves are positive shut-off units that support Trimode 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.

SPECIFICATIONS:

Material:

• - 316 stainless steel with bronze cap. Teflon ball valve seals. 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).