Document Z4nm2agRbjJ1o1NBOnxqordNO

To: D. W. Hollis Interoffice Communication From: Date: Subject: F. G. Jeanson December 17, 1985 LIMIT SWITCH REPLACEMENT - CLASS "A" PROCESS DESIGN Attached is the Class "A" Process Design to replace the limit switches on valves in VCM service. These new limit switches will indicate the position of the valve stem, instead of the position of the actuator, providing each valve with more reliable indication in the control room. This design will provide limit switches for the VCM charge valves, the evacuation/recovery valve and the main dump valve on each reactor, also included in this design are the valves on the charge systems. Limit switches will be replaced on a total of 47 valves. Limit switches for the remaining valves on the reactors (Chem Wash, Hot Water Charge, Sewer, Dump, Recovery, Evacuation and Vent) will be provided for in the compliance plan. A trial limit switch, that is the same model as the limit switches specified in this design, was installed in the plant in the third quarter of 1984. This limit switch has operated trouble free for approximately one year. By copy of this design to REP a definitive estimate is requested. If there are any questions or comments please refer them to me. F. G. Jeanson Process Engineer gmp c I VAB.0001098906 REACTOR VALVE LIMIT SWITCH REPLACEMENT ABERDEEN CHEMICAL PLANT December 10, 1985 Work By: Frank 6. Jeans Process Engineer Reviewed By= G . "A R. B. Newton Process Engineer Approved By: ( Veldon E. Messlck Chief Process Engineer VAB.0001098907 REACTOR VALVE LIMIT SWITCH REPLACEMENT ABERDEEN CHEMICAL PLANT TABLE OF CONTENTS I. PURPOSE AND PROCESS DESCRIPTION II. INSTRUMENT SPECIFICATIONS III. DRAWINGS h VAB.0001098908 LIMIT SWITCH REPLACEMENT ABERDEEN CHEMICAL PLANT Purpose and Process Description The purpose of this design is to provide the valves in VCM. service with reliable indication of the valve position in the control room. The existing limit switches do not provide this reliability, since they are operated by the position of the actuator and not the position of the valve. This type of operation does not account for the possibility of shearing the coupling between the valve stem and actuator, which poses a potentially hazardous situation for a VCM release. This design will provide each of the designated valves on the reactors and charge system with a new limit switch that operates on the position of the valve stem. These new limit switches will provide accurate indication in the control room and eliminate the hazard of a valve being open when it1s acutator position is showing closed. A total of 47 valves will be equipped with this new type of limit switch. These limit switches will be mounted on the bracket between the valve and the actuator. Drawings of several different types of valves with the new limit switches are attached. The valves which will be equipped with the new limit switches are listed in Table I. Reactor 745 + 700 TABLE I Valve Location VCM Charge VCM Charge Main Dump Evac./Rec. Size 6" 6M 8" 8M Manufacturer TuFline (Plug) 300 TuFline (Plug) 300 Jamesbury (Ball) 300 TuFline (Plug) 300 600 + 500 VCM Charge VCM Charge Main Dump Eva./Rec. 6" 6" 8" 6" TuFline (Plug) TuFline (Plug) KTM (Ball) TuFline (Plug) 300 300 300 400 300 744 743 742 741 VCM Charge VCM Charge Main Dump Evac./Rec. VCM Charge VCM Charge Main Dump Evac./Rec. VCM Charge VCM Charge Main Dump Evac./Rec. 6" 6" 8" 6" 6" 6" 8" 6" 6" 6" 8" 6" Charge System New Module Charge Pumps Suction 8" Discharge 6" 6" Old Module Charge Suction Discharge Pumps 8 ft 8 II 6 VI 6 If Total Valves - 47 TuFline (Plug) 150 TuFline (Plug) 150 Jamesbury (Ball) 300 Jamesbury (Ball) 300 TuFline (Plug) 150 TuFline (Plug) 150 WKM (Ball) 300 TuFline (Plug) 300 Durco (Plug) 6411 TuFline (Plug) 150 WKM (Ball) 300 WKM (Ball) 6RB122 WKM (Ball) 8RB10 310 WKM (Ball) 6RB102 WKM (Ball) 6RB102 TuFline (Plug) 150 TuFline (Plug) 150 Durco (Plug) Fig 0431 TuFline (Plug) 150 r REACTOR VALVE LIMIT SWITCH REPLACEMENT ABERDEEN CHEMICAL PLANT III, Instrument Specification Item ELS-101 through 147 Description Proximity Limit Switches VAB.0001098911 rf A t conoco Conoco Inc. Engineering Center Ponca City. Oklahoma specification sheet Anettj PLANT ITEM NO SERVICE \ Qrv i c.e C U<ryv\4 c < \i PROJECT \O \ ru /' 'P JL /v f fd SPECIE ICAIION SHUT p*oiCr:i no Al( uo _ OATf , I NO Ml *.*Anr r Ml O NO i AM / I Mi / aj,> rr w>.J 11 Si!/V v 1 _ /-' v -- iW-tveey* i KoA ar CQ(v^ p<rt *y/ PP r <r ^ <Xj r\ PM p T O^X po44-e A . r | " */ fs, Q \A--S N Ptji ^.A/ I T CO fN Crx t~ I y I.MI V 3.<g/ I /\ fi f* r* - %. s tt * sheet rev -I ft- [4 Series 70 Switch A Rugged and Dependable Line of Totalfy Enclosed Proximity Limit Switches from General Equipment & Manufacturing Company, Inc *M A, ' ' +> ** ' :5, * H M ' ^ *T ** H ' f k4 l h-4'frVR.J \^V: -O t J *- * j1 t /atK' t.* -**. ^ k - -> * -iV is& "4*? 'V * i "* Art --* v va- * |\ f ri . ^ ^ V; '- k ^ v *-' r - j**0*' **. ;C #: *\ t -r* , p/ I ^I T ! ^4 h ' k J p - rr * i f* ' '*i;* -7^ -,;vvy "v.- <>* * G_' T 0--*-t fV|^ C I''' !* - v- * < >* * * ' .*. Ml ^ t4 'A * . K ' *-V~ 4 . I T.`f ,p V u -4 ' ^#1- ** t* > -t - '- % IL * t * ^ P u tv; *3 1fe>, -`fKviV;-h4r i i^ u_ 4p L + i I r- n ' * /- * If s -T *. v. -J'L / v*: V, * ,X - *t. *, ' . \ p . I %* ,1 V* r -*1 * -V. rOO,rw * p ' mSffesafcicV*- :-?ivv5 ' '',- rJ*v-: r 'i * * t- w^r ^ *' r vv^ , * 1VV-*-': ,. i *# * ij *v; 1 J* * : -* 1 ' if p^ L4 -/' - _,, 1 ft;. . * r r ^ ' * j^>1( " . ' a. fc *t t' t I. kl ft t >> V?J 'Vrf /'n /<* A'W , * * v* F"rV' * i-1* * . . ' # 4' /-*0 . i# * - *' L * -*' V ' ` *f 'f 1 _T '*' f . t * > ,, e; * *t' . ` . ** i ,>4^ ft T\, *" n/V,-, * "^V > T* > +P *1 VAB.0001098913 .J Sif. ** - t 1 * * * * J+l * End Cap: .050" Stainless Steel (304) End Cap, available with thicker End Caps for higher pressure. Pressure Options: Normally the standard 5/8" diameter will withstand 2000 PSI. Larger cases with thicker walls and front End Caps will allow the switch to function at much higher pressures (up to 10,000 PSI). Certification available as factory option. Case: 300 Series Stainless Steel case, plain or threaded body (5/8-18 NF). Different body lengths available, SEE options on MODELS AVAILABLE. Magnets: Made with a high energy product magnet. An excellent coercive force which converts into grams of Contact Pressure for reliable operation. Meets MM PA Specifications. External Threads: Machines to meet SAE 5/8-18 UNF Specifications. Units available with or without threads. Contacts: Type Silver, Cadmium Oxide, resists welding and is some of the most widely used Contact Material in the industry. Sized to withstand approved ratings. Hermetically Sealed Contact Chamber. Bearing: Consists of a finely around Stainless Steel Pin and durable plastic housing. Sized to withstand a wide temperature range. Resists seizing and gives millions of free operations. Potting: Terminal cavity filled with epoxy resin com pound for sealing and mechanical support of wire/ cable connections. * Body Tube: Made of Free Mechanical Stainless Steel. Resists most all harsh environments and withstands high working pressures. Impervious to water, oils and gases. internal Threads:1/2-14 NPT. complies with CSA requirements for Explosion Proof Applications. Wire or cable leads available to meet Customer's Specifications. VAB.0001098914 J When time, accuracy, and dependability count... you can count on the 70 Series GO Switch. ' Maintenance free; engineered for precision, performance and reliability. The standard 70 Series GO Proximity Limit Switch has been designed and built to rugged specifications for use in most industrial and environmental applica tions. Each switch is totally enclosed, hermetically sealed and capable of operating in hostile environments. The standard stainless steel housing is impervious to oils, caustic acids, water laden areas and most Standard Models atmospheric conditions, with a broad operating temperature range. (See specification) Many different models of the switch are available for your design needs. (See ordering information for specifications, detail and options.) Hazardous Location approved models for Class I, Division 1, All Groups Model 713360 No conduit connection, 18" 3 conductor cable with water resistant squeeze connection, type 300 stainless steel housing with K-18 NF x 1.5" threads with 2 lock nuts. Model 713570 Vt NPT conduit outlet, IS" 3 conductor cable, type 300 stainless steel housing with K-18 NF x 2.813" threads with 2 lock nuts. Model 713524 4 NPT conduit outlet with 18" potted, 3 conductor cable, type 300 stainless steel housing, no threads. Model 713420 No conduit outlet. 18" potted. 3 conductor cable, type 300 stainless steel housing; no threads. Model 713660 No conduit outlet, 18" potted. 3 wire leads, type 300 stainless steel housing with K-18 NF x 1.5" threads with 2 lock nuts. Model 713564 4 NPT conduit outlet with 18" potted, 3 conductor cable, type 300 stainless steel housing with K-18 NF x 1.5" threads with 2 lock nuts. Model 713460 No conduit outlet. 18" potted, 3 conductor cable, type 300 stainless steel housing with K-18 NF x 1.5" threads with 2 lock nuts. Model 713720 Vi NPT conduit outlet with 18" potted. 3 wire leads, type 300 stainless steel housing, no threads. Model 713574 Vt NPT conduit outlet with 18" potted. 3 conductor cable, type 300 stainless steel housing with K-18 NF x 2.813" threads with 2 lock nuts. t Model 713520 4 NPT conduit outlet, 18" 3 conductor cable, type 300 stainless steel housing, no threads. Model 713760 Vi NPT conduit outlet with 18" potted. 3 wire leads, type 300 stainless steel housing with K-18 NF x 1.5" threads with 2 lock nuts. Model 713724 4 NPT conduit outlet with 18" potted, 3 wire leads, type 300 stainless steel housing, no threads. Model 713560 Vt NPT conduit outlet with 18!' 3 conductor cable, type 300 stainless steel housing with K-18 NF x 1.5" threads with 2 lock nuts. Model 713770 Vt NPT conduit outlet. 18" potted 3 wire leads, type 300 stainless steel housing with K-18 NF x 2.813" threads with 2 lock nuts. Model 713764 4 NPT conduit outlet with 18" potted. 3 wire leads, type 300 stainless steel housing with K-18 NF x 1.5" threads with 2 lock nuts. 'ti-J : . '.M-- 11 .It1 Approved switches are in compliance with current bulletins 1243, 1273 and 1308. * Model 713774 4 NPT conduit outlet with 18" potted. 3 wire leads, type 300 stainless steel housing with K-18 NF x 2 813" threads. These switches are U/L and CSA approved for industrial control, general purpose use. See hazardous lo64tfc9P0109891^ approved models In Column 3, this page. TOLERANCES Unless otherwise specified Angles: 1*. Fractions; 1/32", J(X .01". .XXX .005H * .t Surfaces must be Concentric. Parallel, Flat & Square T.I.R. REVISION DATE BY APPD. 4 fl ii it ACTUATOR MTG. BRK*T. -- DRIVE SHAFT n ii /r^, vi 1 \i o Item MATERIAL LIST Description Dwg. No. Switch Activator V126411-1943 Mounting Bracket V126411-1944 1/4-20 x 1/2 Hex Bd. Screw 1/4 L.W. 5/8 Shakeproof L.W. 5/8 F.W. (1-5/16" O.D.) DRILL a TAP 1/4-20UNC k i 13/16 JAM NUTS GO Switch FIG. i i ACTUATOR MTG. BRK T. GO Switch COUPLING DRIVE SHAFT i i 1__ -TlK? -.1 rrn;; 2-1/4 it FIG. INSTALLATION INSTRUCTIONS Disassemble Actuator and Coupling from Valve and remove existing pointer. Slide 9witch Activator (item 1) onto drive shaft. Drill and Tap Actuator Mtg. Brk`t. for 1/4-20UNC screws and attach Mount ing Bracket (item 2) with items 3 & 4. Mount GO Switches in Mounting Bracket (item 2) with two jam nuts supplied with switch and washers items 5 & 6. Adjust Switches in on Mounting BRacket (item 2) to Switch Activator (item 1) in full open and full closed positions. Note: 1. GO Switches are not included in V.I.P. (Valve Indication Package) and should be orde separately. 2. Use Model 713774 GO Switches #in OWN. BY RON S CHK. BY APPD DATE 9-28-83 Bi/c SERIES GO SWITCH V.I.P. ON DURCO 6" 150# G411 Valve WITH BETTIS ACTUATOR * *5 FOR CONOCO i % GENERAL EQUIPMENT A MANUFACTURING CO., INC. 3300 FERN VALLEY AOAO P.O. BOX 37200 OUlSVlLLE. KENTUCKY. USA. 40233 SYSTEMS (802) 00*2300. TWX 01*435-2700 DWG. NO V126411-1942 REV. TOLERANCES ACTUATOR MOUNTING BRACKET GO SWITCH ACTUATOR MTG. BRKT. OWN. BY RON S CHK. BY zo REVISION * OATE BY APPO. Hi. 098911 Angles: I*. Fractions: 1/32". XX 01". XXX 005** Surfaces must be Concentric. Parallel. Flat & Square (as applicable) to each other within ___ T IR NO ' REVISION A OATE BY APPO. | Item Qty. _ I 21 31 44 54 62 72 MATERIAL LIST >-- * * -- Description Drf/g. No. Switch Activator V907310-1955 Mounting Bracket V907310-1954 Set Screw #12-24 x 1/4 1/4-2C x 1/2 Ilex lid. Screw 1/4- L.W. 5/8 Ext. Tooth L.W 0 5/8 F.W. -t TOLERANCES Uniat* otharwi** *pclfitd Angle* 1*. Fraction*; 1/32". JCX .Or. .XXX 006 Surface* must be Concentric, Parallel, Flat ft Square (a*applicable) to each other within T.I.R. T I M! l1 A. As/1t 11 ' 1 * *r i I eat C3 919* I JAM NUT GO SWITCH (OPEN) FIG. MATCH DRILL FOR THREE 10-24 UNC-2B THREADED HOLES -- ACTUATOR Mm brkt. GO SWITCH (SHUT) I H NO. REVISION | OATE BY APPD. 1 l 1 MATERIAL LIST to Item Description Dwa. *lo. ! " ................. . --....... 1 1 Switch Activator Y40280Q-1948 2 1 Mounting pi ate V402800-1 949] 3 3 #10-24 x 1/2 Rd. Hd. Screw 4 3 #10 Ext. Tooth t ,W. INSTALLATION INSTRUCTIONS With Valve Actuator removed slide Switch Activator (iteni onto drive shaft shown figure Mount Mounting acket (item 2) match drill and tap for three #10-24 UNC screws and attac h 1 tern 2 to Actuator mountlnn br acket with 1 terns 4 & 5. Screw GO Switches In to threaded holes on Mounting Bracket (item 2) and secure with jam nuts 1ncluded with Switches. Adjust Switches to s ense triangular bars on Switch Activ ator when Valve ful1 open or ful1 closed positions. SWITCH I JAM NUT .t i FIG. 2 FIG. OWN. BY CHK.BV APra. DA 10*3'SS 70 SERIES GO* SWITCH V. I. P. ON KTM VALVE E0800 WITH JAMESBURY ACTUAtOtf FOR CONOCO 1 * .* ' A9 GENERAL EQUIPMENT A MANUFACTURING CO.. INC. 3300 FERN VALLEY ROAO P.O. SOX 37290 LOUISVILLE. KENTUCKY. USA. 40233 (sol) aaaaaaq twtx aiMMTis V402800-I947 t +* ' r- *p 1*, V TOLERANCES UnlMt othwwte* ptcHMd AnQtaK 1*. Freefone 1/3T. JCX .01". .XXX .003" SurfaeeriRuel N CoocfUrtc. PmM, FM I Square (it epictlx) 1o --eh other within T.I.R. i MATCH DRILL SHAFT J29 TO .129 DIA X3/9 0EEP DRILL S TAP SHAFT FOR I/4-20UNC x 1/2 DEEP I * I I\ *4 * ~-Le>; k REVISION OATE APPO p 1 a a 4- MATERIAL LIST A* l* A tP Item Qty- | Description | Dwg. No. 1 1 Mounting Bracket V782067-1935I 2 1 9witch Activator 1 V782067-19361 3 1 Rollpin 1/8 x 1/2"long 1 4 1 1/4*20. x 5/8 Flat Hd. Screw 1 5 4 1/4-20 x 3/4 Hex Hd. Screw 1 6 4 1/4 L.W. W 7 2 5/8 Ext. Tooth L.W. 1. 8 4 5/8 F.W. (1-5/16 O.O.) V i I ORILL a TAP (4)HOLES I/4-20UNC\ 1.1-1! *. s x 9/16 DEEP JAM NUTS & SWITCH FIG. 1 * SWITCH ACTUATOR t COUPLING * i t ( %b _1^ 1 I ACTUATOR MTG. PLATE ll VIEW A-A VALVE Iim i i * SHAFT /I I INSTALLATION INSTRUCTIONS i Remove Valve Actuator and Coupling from Valve. Machine notch in coupling to 7/8 depth as indicated in view A-A. Drill & tap top of shaft for 1/4-20UNC x 1/2" deep hole. Place Switch Activator (item 2) on shaf and secure with flat head screw (item 4 Then orient Switch Activator as shown in figure 1. Match drill shaft with hole in Switch Activator and drive roll pin (item 3) into hole to prevent rotation. * Fit Mounting Bracket (item 1) to sides of* Actuator mounting plate support and mark location of four mounnting holes, dril^ and tap four 1/4-20UC x 9/16 dp. Then secure Mounting bracket (item 1) with items 5 & 6. Insert GO Switches into slots on Mtg. Bracket (item 1) and secure with two jam nuts that come with switches and washers items 7 & 8. Adjust Switches to sense Activator (item 2) in full open and full closed positions. f im t FIG. 2 9-12-93 SERIES GO SWITCH V.I.P. GENERAL EQUIPMENT A MANUFACTURING CO,, INC. TUFLINE 067 6" PLUG VALVE VALLEY ROAD p.OROxmn VALVE SHAFT !&* MWTUCKY. IMA. * V I-* 1^ * 9 .* V782067-1934 I t \ t Item Qty. Descr iption Owe. ' ' o . a * 1 Switch A c t i v a t01" V402800 -1 9 48 2 1 M o u n t i n 9 plate V402800 -1949 3 #10-24 x 1/2 Rd. Hd. Sere w !4 ' 3 #10 Ext . Tooth L. W. d H INSTALLATION INSTRUCTIONS; 1 . With Va 1ve Actu a to r remov ed slide Swi tch A c t i v a t o r (itern 1) onto dr i ve shaft a s s hov/n i n figure 1. 2 . To Mou n t M o u n t i no Braeket (item 2 ) match d rill and tap for t hree #10 -24 VUC scr ews. Att ach Mounti n q Plate to Ac tuato r mounti ng bracket with it ems' 4 & 5. A i * - +* 3 . Screw G 0 Switch es into th readed h ol es on M'oun ting Bra cket (item 2) and secure with jam rruts incl u d e d wit h Swi tc he s . n 4 . Adjust Switc hes to sense t r i a n q u 1 ar bars on Switch Actiyator when Val ve is i n full open or ful l cl os ed posit ions. U3