SU0004714 - Laserfiche WebLink

Home Browse Search

58.16 NftuSTRIAL RELATIONS TITLE 8 (Register 76. No.32--&7-76) (E) A positive check valve (internal valve) which is normally closed and which is opened by pump discharge pressure and which can be closed manually from a point remote from the delivery connections. Such valve shall close automatically with a reduction of pump discharge pressure and shall also incorporate a fusible section as required in Section 507 (e) (1) (C) which will cause the valve to close automatically in case of fire. Note: Service valve as used in this order is limited to vapor valves screwed into vessel outlets not larger than 3/.-inch pipe size and having an inlet internal diameter in the valve body not exceeding the internal diameter of a '%-inch Schedule 80 pipe. (2) Valves larger than 4 inch pipe size need not be installed direct- ly in a tank connection, under the following conditions: (A) The valve must be installed at the first flange or welded joint immediately outside the container in such a manner that any undue strain beyond the valve will not cause breakage between the tank and the valve. (B) Automatically or remotely controlled valves, or both, of the fail safe type, shall be used. They must also be capable of manual operation. (C) Piping between the tank and the valve shall be at least Schedule 120. (D) Acceptance of the valves by the Division must be requested prior to installation. (E) Where cables are used for remote operation, the control must be fitted with a fusible section having a melting point of 208' Fahrenheit to 220' Fahrenheit, which will cause the valve to close automatically in case of fire. (f) In addition to the valves required in Section 507 (e),all liquid and vapor connections other than safety relief valve andgaging connections shall be fitted with a manually operated shutoff valve located: (1) As close to the tank as practicable in all pipelines on connec- tions not included in Section 507 (f) (2) or (3). (2) In the loading and/or unloading pipelines between the tank and the pump, compressor, meter, or bulkhead, whichever is nearest the tank and in each branch line where it leaves a loading and/or unloading line. This applies only to pipelines on stationary tanks having the loading and/or unloading lines secured to bulkheads specified in Section 501 (e) and having valves complying with Section 507 (e) (1) (D) or (E) installed in the tank connections of such pipe- lines. When a pump is attached directly to a valve complying with Sec- tion 507 (e) (1) (D) or (E), the manually operated shutoff valve re- quired by this Order may be located between said pump and the meter or bulkhead, whichever is nearest the tank. (3) In the loading and/or unloading pipelines between the tank and the device used to secure the pipeline as required in Section 504 (i). This applies only to pipelines on transportation tanks having valves complying with Section 507 (e) (1) (D) or (E) installed in tank connections of such pipelines.