CYLINDER CHARGING PROTOCOL

Assure correct type of thread sealants are used;

NGS Valve/Cylinders are O'ring sealed to 30-75 ft./lb. with DOW 111 dielectric to prevent electrolysis. NGT Valve/Cylinders are teflon tape sealed,

Prior to cylinder charging check all test dates and specifications;

 Special Permit & Exemption Numbers 49CFR 173.23(c);

Aluminum Cylinders which had expired in 1982:

SP6688,  E6688, SP6576 ,   MUST BE REMOVED FROM SERVICE ! 

            Aluminum Cylinders current as of 1982:      

 SP6498,  E6498,  E7042,  E8364,  E8422   MUST BE STAMPED WITH THE CURRENT DESIGNATION  3AL FOR CONTINUED SERVICE !       

SP(E)12479  SERVICABLE AS IS, UNTIL EXPIRATION:   OCT 31, 2010

Steel Cylinders with Exemptions;  

SP(E) 9791 SERVICEABLE AS IS,UNTIL EXPIRATION:  MAY  31, 2011

SP(E) 13483 SERVICABLE AS IS, UNTIL EXPIRATION:  AUGUST 31,2010  

SP(E) 12079  SERVICABLE AS IS, UNTIL EXPIRATION:  FEBRUARY 28, 2010

SP(E) 14157 SERVICABLE AS IS, UNTIL EXPIRATION:  JANUARY 31, 2011

Title 49 Code of Federal Regulations Prescribes Nonliquefied Compressed Gas "Air" Service in Specification Cylinders as Follows:

             49 CFR 173.302a(a)(1) :    DOT 3,   3A,   3AA,   3AL, ...                   49 CFR 173.301a (c)  :  

The pressure in a Cylinder at 21 C ( 70 F) may not exceed the service pressure for which the cylinder is marked or designated...

Recommended Charging Rate for Air Service; 300-600 psi / minute.

Always Inspect Cylinders for Leaks During and After Charging.

 
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