Main Bags Type B | . Main Bags Type C | . Purge Dams | . Directional Gas Bags Type D


Safety Main Stopper Co. Inc.

COVERED MAIN BAGS TYPE C

100% POLYESTER - COVERED MAIN BAGS

TYPE “C” Bag  come standard with a white canvas cover, brass tee connection with inflation/deflation valve. The brass tee allows for the option to attach a pressure gauge (to monitor pressure in the bag). The canvas cover can be flame retarded for any job that requires welding near the bags. The  Type “C” Bag  are available in Natural Gum Rubber or Nitrile Rubber.

TYPE “C” Bag come standard with a white canvas cover, brass tee connection with inflation/deflation valve. The brass tee allows for the option to attach a pressure gauge (to monitor pressure in the bag). The canvas cover can be flame retarded for any job that requires welding near the bags. The Type “C” Bag are available in Natural Gum Rubber or Nitrile Rubber.

Type "C" Bags are for use wherever a plain rubber bag would not hold. This covered bag consists of an inner bag made of a high quality Natural Rubber bladder that is then encased in a 100% Polyester fabric cover. The gauge of rubber and polyester vary with the size of the bag. Each size bag is expertly made to insure a snug fit and good shut-off when inflated. Inflating valves are standard with each bag; pressure gauges are recommended and can be furnished at an extra cost. Covers can be made flame retardant and bladders can be supplied in hydrocarbon-resistant Nitrile Rubber at an extra cost. 

DO NOT use Natural Rubber Type "C" Bags in oil, gasoline, kerosene, acids or any similar substances. Contact us for specific recommendations when bags are to be used in lines containing these substances. 

OUR TYPE “C” BAGS ARE GREAT FOR OIL AND GAS MAINS AS WELL AS FME (FOREIGN MATERIAL EXCLUSION) WORK!

CAUTION:  The line pressures given (right) are for use with bags in series with a vent pipe extending vertically between them. Accompanying illustrations show this.

CAUTION: The line pressures given (right) are for use with bags in series with a vent pipe extending vertically between them. Accompanying illustrations show this.

Mainstopper Typec.jpg
WARNING: DO NOT USE THESE BAGS IN MAINS HAVING PRESSURES IN EXCESS OF THE FOLLOWING
MAXIMUM PRESSURETAP SIZE IN INCHES
SIZE IN BAG IN LINE TAP HOLE
2" 15 PSI 1 PSI 1"
3" 15 PSI 1 PSI 1"
4" 15 PSI 1 PSI 1-1/4"
6" 15 PSI 1 PSI 1-1/2"
8" 12 PSI 1 PSI 2"
10" 10 PSI 3/4 PSI 2"
12" 8 PSI 3/4 PSI 2-1/2"
14" 6 PSI 1/2 PSI 2-1/2"
16" 6 PSI 1/2 PSI 3"
18" 5 PSI 1/2 PSI 3"
20" 5 PSI 1/2 PSI 4"
24" 3 PSI 1/2 PSI 4"
30" 3 PSI 1/4 PSI 5"
36" 3 PSI 1/4 PSI 5"
42" 1 PSI 1/4 PSI 6"
48" 1 PSI 1/4 PSI 6"
 
 
 

Main Bags Type B | . Main Bags Type C | . Purge Dams | . Directional Gas Bags Type D

Safety Main Stopper Co. Inc. • 523 Atlantic Ave, Brooklyn, NY 11217 • TEL: 718-875-4427 • FAX: 718-625-4805
EMAIL: rubcons@ix.netcom.com • stoppersinc@gmail.com