Document JN2pm2pr1mm8GLm6o1Okmm5Jr

BF'gccciricn The BFGoodrich Company Chemical Group 6100 Oalc Tree Boulevard Cleveland. Ohio 44131 216-447-6000 December 6, 1982 Mr. C. A. Gellner Plant Manager CertainTeed Corp. Pipe & Plastics Group PO Box 253 Sulphur, Louisiana 70663 r RE: Vinyl Chloride Storage Tank Safety Standard Dear Mr. Gellner: BPG's "Hazardous Material Storage Tank Corrective Action Team" has completed the vinyl chloride portion of our hazardous storage tank safety standard. The highlights of this standard were presented at the Vinyl Chloride Safety Association Meeting in Toronto. At that time, we agreed to send our completed vinyl chloride safety standard to any acmpany that was interested. A copy is enclosed with this letter. BFG has developed an Action Plan for implementing this safety standard over a four year period. We are interested in knowing what your plans are to implement this complete standard or sections of this standard. We plan to have this topic on the agenda for the October 20, 21, 1983 Vinyl Chloride Safety Association Meeting in New Orleans. Sincerely, The BFGoodrich Company Chemical Group Mark D. Tawney / Chairman, Hazardous Materials Storage Tank Corrective Action Tean MDT/vs/5018h pa Cf. /<// /?J &f/,uL Herm Waltemate Manager Safety, Chemical Group CTL020711 SA - 132 Dace: 11/15/82 BFGOODRICH CHEMICAL GROUP SAFETY STANDARD Hazardous Material Storage Tank Standard ** Vinvl Chloride Storage Tanks (Non-Process) " Tank Valves and Nozzles I. All tank nozzles must have one of the following: 1. If Not In Use - Blank on the tank nozzle flange. 2. Vapor Service Nozzles - Ball valve mounted on tank nozzle flange. Valves in conjunction with relief valves will be covered m the relief valve section. 3. Liquid Service Nozzles (usually on bottom of tank, but would also include cop entering dip pipes) - Remote air actuated ball valve mounted on tank nozzle flange. The following exceptions apply: (a) Tank nozzles with thermowells. (b) A manually operated ball valve that meets criteria in Appendix I, mounted between the tank nozzle flange and the air actuated ball valve is optional. (c) Fill lines into the VCM spheres at Calvert City. These lines require a check valve that is inspected annually and an air actuated valve that is activated only by a remote air switch. Air actuators must include the following features: (a) Air to open, spring to close. (b) Contain section of burn-through tubing. (c) Valve, with air actuators mounted on them, bench tested for leaks before installed on tank and during vessel turnaround. wp8/1551q-l ^10/82 CTL020712 SA - 132 Date: 11/15/82 II. Valve requirements for Section I and a list of valves that meet these requirements are in Appendix I. III. Air actuated valves are required to have two local and one remote manual air switch. The two local air switches will be 180 apart and located just outside the tank contain ment system. A LEL vapor detector, discussed later, will also operate these valves. IV. It is required that all air actuated valves be cycled weekly. V. Excess flow valves may be used in conjunction with air actuated valves. Vapor Detectors I. LEL type vapor monitor with continuous sampling that alarms at a maximum of 25% and closes air valves and activates deluge system at 50% are required. II. Three LEL detectors will be located below tank and one at pump. It is not required that the LEL detector at the pump activate the deluge system. ire Protection I An automatic deluge fire water system is required for each tank. II. , Vessel supports need either a deluge system or firje proofing with a 3 HR rating. Relief Valves I. One of the following two, (a) or (b), may be used for vessel pressure relieving systems: (a) A three-way valve with two relief valves. (b) Two-way valves, multi-noz2le with *Castell* locking system. See Appendix II for relief valve design and installation requirements. wp8/1551q-2 12/10/82 CTL020713 SA - 132 Dace: 11/15/8 II. Manual valves below relief valves must be mounted on tank nozzle flange-. Valves for this service must meet the requirements in Appendix I. III. Each relief valve will be bench tested every three years. IV. Rupture discs will continue to be used per the EPA Regulations. V. Sizing of relief valves must adhere to BFG Policy ST-1317. Tank Internal Inspection I. Storage tanks will be inspected a minimum of once in five years; tanks in rework VCM service every two years. II. The minimum inspection requirements are: (a) Visually inspect for internal corrosion, especially around flange welds, thermowells, level indicators, etc. (b) Ultrasonically test wall thickness in several representative locations. (c) Record results of each inspection and thickness measurement and compare with previous inspections. III. Connecting piping will be inspected at the same time tank is inspected. ( '] wp8/1551q-3 12/10/82 CTL020714 RECOMMENDED VALVES FOR STORAGE SPHERES AND BULLTS SPECIEICATION: _________ BALL VALVES - SPLIT BODY 150 lb. Flanged, Fire Test, Blowout Proof Stem Grounded Ball MANUFACTURER & MODEL NO. KITZ K-150-UTBM-FS K-150-SCTB-FS PORT SIZE - Full Full AVAIL. MAT'L SS cs AVAILABLE SIZES Y'-io" Y'-io" ACTUATOR MOUNTING PAD PROV Yes Yes KIM OMNI E0132-32GT-15L E0832-32GT-15L E0162-32GT-15L E0862-32GT-15L JAMESBURY 6150-31-3600 6150-31-2236 5150-31-3600 5150-31-2236 WATTS SF-2800-150 CF-1800-150 COOPER FIG 415 ' KAMYR PC PC Full Std. Full Std. Full Full Std. Std. Full Full Full Full Full SS Y'-8" SS 3"-10" cs cs 3"-10" SS 2"-20" cs 2"-20" SS 6"-20" cs 6u-20" SS lY'-6" CS 1Y'-6M Alloys Only Y'-12" CS lY'-24" SS lY'-24" Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes CTL02071' 2 of 3 RECOMMENDED VALVES FOR STORAGE SPHERES AND BULLETS SPECIFICATION: BALL VALVES - END ENTERING 150# Flanged, Fire Rest, Blowout Proof Stem - Grounded Ball MANUFACTURER & MODEL NO. MARPAC SS-C470-RF CS-470-RF PORT SIZE Std. Std. AVAIL. MAT'L SS CS AVAILABLE SIZES l*SM-4" Y'~4" ACTUATOR MOUNTING PAD PROV. Yes Yes WORCESTER AF51-66 AF51-46 AF-55-66 AF-55-46 Std. Std. Full Full SS CS SS CS 4"-8" If'S" %M-8" Yes Yes Yes JAMESBURY 5150-31-3600 5150-31-2236 6150-31-3600 6150-31-2236 Std. Std. Full Full SS CS SS CS V-4" Y'"4M V'-iY' Y'-iY' Yes Yes Yes Yes HILLS McCANNA McCannaflo F151 McCannaflo F151CS Std. Std. MARWIN 5233R 5333R 5233F 5333F Std. Std. Full Full SS CS CS SS CS SS %"-12" Js"-12" 1 V'-12" W-12" Y'-12" Y'-12" Yes Yes Yes Yes Yes Yes WKM 310C-B136-CS-02-S1 310C-B136-S1-02-S1 310C-3138-CS-02-S1 310C-B138-S1-02-S1 Std. Std. Full Full CS Y'-4" SS * Y'-4" CS j"-4" SS Y,-4" Yes Yes Yes Yes CTL020716 RECOMMENDED VALVES FOR STORAGE SPHERES AND BULLETS ________ UNDER RELIEF VALVES ONLY________ SPECIFICATION: 3 WAY - 150if FALNGED VALVES Full Port manufacturer & MODEL NO. COOPER (BALL) 3 Piece T Port KAMYR (BALL) Y2 Y2 PORT SIZE Full Full Full AVAIL. MAT'L Alloys Only AVAILABLE SIZES lj"_12" CS 3"-12" SS 3"-12" 3 of 3 .] % cTL020717 [ BrGOODRICH CHEMICAL GROUP 1 ENGINEERING DEPARTMENT 1REV. I0RIG IA 1 IDATE 102/81 110/82 1 IBY IDGA ITPH 1 IAPPD.IDGA \TPhb 1 1 1 1 1 1 1 1 1 1 RELIEF VALVE INSTALLATION i tNG. s::. 1 1 ST-528 Ibheet i of * 0031S/8S 1.0 SCOPE 1.1 This standard covers the allowed methods of relief valve installation cn vessels. 1.2 This standard is an adjunct to ST-1317 Relief Valve Policy. 1.3 Rupture Disk-Relief Valve combinations are covered in greater detail ir; . ST-524. 1.4 This standard does apply to two rupture disks in series when all provisions of ST-524 have been met. 2.0 PURPOSE 2.1 To establish Group policy due to lack of complete clarity in the ASME code. 3.0 SOURCE 3.1 ASME Boiler and Pressure Vessel Code Section VIII, Paragraph UG-125 to UG-136, Addendum M. 4.0 DEFINITIONS 4.1 Valves are understood to mean hand operated shutoff valve either 2-port ' or 3-port. 4.2 Relief valves are understood to mean the reclosing-pressure relieving device. 4.3 Dual relief valves are two relief valves of equal size and each capable of satisfying the vessel relief requirements. 5.0 INLET INSTALLATION 5.1 The distance between the relief vafve and the vessel outlet nozzle shall be kept as short as possible. Direct connection is preferred. 5.2 Installations where dual relief valves (on one nozzle) are required for continued operation may have a -3-port* valve installed between the relief valves and the vessel outlet nozzle if the following conditions are met: 5.2.1 The valves and intervening piping must have an area equal to the area of the inlet flange of the relief valve. 5.2.2 The valves must not be of top entering construction. CTL020718 [ BFGGQDRiCH CHEMICAL briUUF 1 1 ENGINEERING DEPARTMENT IREV. IOR [G IA 1 1 IDATE [OP/Rl lin/S? 1 1 1 1 BY 1DGA ITPH 1 1 1 Iappd.Idga 1 1 1 1 RELIEF VALVE INSTALLATION 1 ENG. St0. 1 1 1 ST-528 1 Sheet ? of p 0031S/86 5.2.3 The pressure drop between the vessel and the intervening piping and valve must not be greater than 3% of the set pressure of the relief valves at full flow (See Sketch A). The relief valve must be set accordingly so that the maximum pressure in the vessel - cannot exceed the maximum allowable working pressure plus accumulation. 5.2.3.1 Alternate I may be used where the AP is less than 3S of relief valve set pressure to either valve. 5.2.3.2 Alternate II may be used-when the symmetrical arrangement cannot be used due to ^P limitations. The pressure drop through the valve set at straight through flow must not exceed 3% of the relief valve setting. 5.3 Installations where multiple relief devices (on separate nozzles) are required--locking valves may be used between the vessel outlet nozzles and the relief devices, as follows: 5.3.1 -The installation shall be according to the sketch on page 6 of this standard. The lock shall be mounted to lock the valve in the open position. 5.3.2 The valves and any spool pieces, if used, must have an area equal to the area of the inlet flange of the relief valve. 5.3.3 The valve lock shall be Type KC/QKC as manufactured by CASTELL SAFETY, INC., specified to fit the particular valve to be used. 5.3.4 Only one key shall be furnished for each vessel/installation. The key shall be unique for that installation and shall operate all locks. The key shall be captured upon opening the lock, which allows the valve to be closed. This permits only one valve to be closed at any one time--the others being locked open and the key trapped at the closed valve. 6.0 OUTLET INSTALLATION * 6.1 Stop devices may be installed at the outlet of a relief valve if the valve discharges into a header with other relief valves attached and it is necessary to continue operat'ions. * The following conditions must be met: 6.1.1 Stop devices shall not have an area less than that of the relief valve outlet. ' CTL020719 i | BEGOODRICH CHEMICAL GRUUP 1 ENGINEERING DEPARTMENT IREV. I0RIG |A | | IDATE 102/81110/821 1 I BY |0GA |TPh | | IAPPD.1DGA | | | 1 1 1 1 1 1 RELIEF VALVE INSTALLATION | tNG. $70. 1 1 1 ST-528 1 Sheet 3 of o~~ 003 10/ob j 6.1.2 Stop devices shall be installed per Sketch B. The order of j preference shall be I, II, III, IV. Operations of the vessel that j is blanked must be shut down or a responsible person must be in j attendance at all times the valve is shut or condition I, II, or j III exists. I- s 1 6.1.3 The-stop device must be lockable in open or closed position. ! j 6.1.4 The pressure drop must be calculated for all probable discharge j circumstances. The line <A>P should not exceed 10% of set pressure for standard relief valves or 50% of set pressure for bellows type relief valves. 7.0 INLET AND OUTLET INSTALLATION 7.1 Valves or stop devices SHALL NOT be used on both the inlet and outlet of any relief device. CTL020720 B F GOODRICH CHEMICAL DIVISION ENGINEERING DEPARTMENT D.G.Aacsberg OATl 2/81 DATE RELIEF VALVE INSTALLATION SKETCH B EMG. 2 . ST-521 SHttri OUTLET VALVING-R F l IFFVAL V / NG TO MANIFOLD s' s' TO MANI.FCLC t: CS X TO MAMlFOLD A H' MA NIFF '- Z 7)l xz: &PGCODRICH ChmICAl group 1 ENGINEERING DEPARTMENT 1 REV. till 1 DATE 1 7/821 1 ! "1 BY | MH | 1 1 "1 APPD.I 1 1 | 1 t VALVE LOCKING METHOD FOR RELIEF VALVES ; * 1 m. $7b. 1 j ST-528 1 1 Sheet 5 o? CASTELL " LOCK MOUNTING DFTAII --NOTES - . TYPICAL MULTI-NOZZLF MULTI-VALVE ARRANGEMENT t