換熱器型號(hào)大全`

1、武漢市潤(rùn)之達(dá)石化設(shè)備有限公司 浮頭式換熱器、重沸器換熱器、冷凝器、U型管式換熱器一、 標(biāo)準(zhǔn)型換熱器、冷凝器、U型管式換熱器具體規(guī)格型號(hào)詳見附表。二 、規(guī)格型號(hào)表示方法武漢市潤(rùn)之達(dá)石化設(shè)備有限公司所制造的換熱器型號(hào)表示方法為：B E S 500 -1.6 -55 -6/ 25- 2 I X (Y) DN - - A L / - -N I(II)- REc全碳鋼材質(zhì) REd全不銹鋼材質(zhì) REa管束材質(zhì)為09Cr2AlMoREREb殼體材質(zhì)為07Cr2AlMoRE I級(jí)換熱器(或II級(jí)換熱器) 管/殼程數(shù),單程只寫Nt 換熱管類型(見表3) 換熱管公稱長(zhǎng)度(m) 光管公稱換熱面積() 管/殼程設(shè)計(jì)壓

2、力(MPa),相等時(shí)只寫Pt 公稱直徑 殼體內(nèi)安裝分布式緩沖板 管箱內(nèi)安裝分布式緩沖板 換熱管支撐形式(見表2) 后端管箱型式(見表1) 殼體型式(見表1) 前端管箱封頭型式(見表1) 導(dǎo)流筒型式(見表1)表1 外殼型式與代號(hào)導(dǎo)流筒型式(見圖1)代號(hào)管箱封頭型式代號(hào)殼體型式代號(hào)后端結(jié)構(gòu)型式代號(hào)外導(dǎo)流筒W平蓋管箱A單程殼體E鉤圈式浮頭S內(nèi)導(dǎo)流筒(可不標(biāo))N封頭管箱B雙程殼體F可抽式浮頭TU形管殼體IU形管束U表2 換熱管支撐型式與代號(hào)折流板式代號(hào)其它式代號(hào)單弓板(可不標(biāo))-空心環(huán)*H雙弓板SG折流桿G多弓板DG軸流雙殼式*ZS螺旋折流板*LX注：標(biāo)*的制造較復(fù)雜，在特殊場(chǎng)合使用。表3 換熱管類型

3、類 型代號(hào)類 型代號(hào)類 型代號(hào)類 型代號(hào)類 型代號(hào)類 型代號(hào)25光管2525波紋管25b25螺旋細(xì)紋管25L25螺紋管25S25T形管25T25縮放管25F19光管1919波紋管19b19螺旋細(xì)紋管19L19螺紋管19S19T形管19T19縮放管19F標(biāo)注示例： 1、浮頭式帶管箱分布板，封頭管箱DN600直徑，管/殼程設(shè)計(jì)壓力1.6Mpa，面積90，管長(zhǎng)6m，管徑25光管，2管程、1殼程管材為09Cr2AlMoRE，標(biāo)注為：BES(X)600-1.6-90-6/25-2REa2、浮頭式螺旋折流板DN800直徑，設(shè)計(jì)壓力2.5Mpa，光管面積205，管長(zhǎng)6m，管徑19縮放管，4管程管束材質(zhì)09C

4、r2AlMoRE，殼體材質(zhì)09Cr2AlMoRE，標(biāo)注為： BES(X)LX800-2.5-205-6/19F-4Rea/b注：型號(hào)中可不加（X）Y，即不采用此結(jié)構(gòu)，也可不加RE(a)b、c、d，即不采應(yīng)規(guī)定的材質(zhì)，但應(yīng)注明詳細(xì)材質(zhì)要求。三、安裝尺寸安裝尺寸按我公司所提供的詳細(xì)安裝 尺寸圖，用戶選用后我公司當(dāng)天即可提供。59浮頭式換熱器序號(hào)規(guī)格型號(hào)（其它型式參照標(biāo)注方法標(biāo)注）傳熱面積管程流通面積管數(shù)（根）整臺(tái)凈重kg管束凈重kg圖號(hào)1AESX(Y)325-2.5-10-3/19-2REa(b)10.50.0053601066279RZDH30012AESX(Y)325-2.5-5-3/25-2

5、REa(b)7.40.0050321066279RZDH30023AESX(Y)325-2.5-10-3/19-4REa(b)9.10.0023521058259RZDH30034AESX(Y)325-2.5-5-3/25-4REa(b)6.40.0022281062263RZDH30045AESX(Y)325-2.5-15-4.5/19-2REa(b)15.80.0053601395458RZDH30056AESX(Y)325-2.5-10-4.5/25-2REa(b)11.10.0050321340403RZDH30067AESX(Y)325-2.5-15-4.5/19-4REa(b)13

6、.70.0023521377428RZDH30078AESX(Y)325-2.5-10-4.5/25-4REa(b)9.70.0022281327378RZDH30089AESX(Y)325-4.0-10-3/19-2REa(b)10.40.0053601091290RZDH300910AESX(Y)325-4.0-5-3/25-2REa(b)7.30.0050321091290RZDH301011AESX(Y)325-4.0-10-3/19-4REa(b)9.00.0023521093270RZDH301112AESX(Y)325-4.0-5-3/25-4REa(b)6.40.0022281

7、097274RZDH301213AESX(Y)325-4.0-15-4.5/19-2REa(b)15.80.0053601433469RZDH301314AESX(Y)325-4.0-10-4.5/25-2REa(b)11.10.0050321377413RZDH301415AESX(Y)325-4.0-15-4.5/19-4REa(b)13.70.0023521267439RZDH301516AESX(Y)325-4.0-10-4.5/25-4REa(b)9.70.0022281217388RZDH301617AESX(Y)400-1.0-20-3/19-2REa(b)21.00.01061

8、201293497RZDH400118AESX(Y)400-1.0-15-3/25-2REa(b)17.00.0116741312516RZDH400219AESX(Y)400-1.0-20-3/19-4REa(b)18.90.00481081280467RZDH400320AESX(Y)400-1.0-15-3/25-4REa(b)15.60.0053681304496RZDH400421AESX(Y)400-1.0-30-4.5/19-2REa(b)31.70.01061201787839RZDH400522AESX(Y)400-1.0-25-4.5/25-2REa(b)25.70.011

9、6741700752RZDH400623AESX(Y)400-1.0-30-4.5/19-4REa(b)28.60.00481081757839RZDH400724AESX(Y)400-1.0-25-4.5/25-4REa(b)23.70.0053681678722RZDH400825AESX(Y)400-1.0-40-6/19-2REa(b)42.50.01061201980880RZDH400926AESX(Y)400-1.0-35-6/25-2REa(b)34.50.0116742024924RZDH401027AESX(Y)400-1.0-40-6/19-4REa(b)38.20.00

10、481081936820RZDH401128AESX(Y)400-1.0-30-6/25-4REa(b)31.70.0053681990874RZDH401229AESX(Y)400-1.6-20-3/19-2REa(b)21.00.01061201310497RZDH401330AESX(Y)400-1.6-15-3/25-2REa(b)17.00.0116741329516RZDH401431AESX(Y)400-1.6-20-3/19-4REa(b)18.90.00481081297467RZDH401532AESX(Y)400-1.6-15-3/25-4REa(b)15.60.0053

11、681321496RZDH401633AESX(Y)400-1.6-30-4.5/19-2REa(b)31.70.01061201804839RZDH401734AESX(Y)400-1.6-25-4.5/25-2REa(b)25.70.0116741717752RZDH401835AESX(Y)400-1.6-30-4.5/19-4REa(b)28.60.00481081661839RZDH401936AESX(Y)400-1.6-25-4.5/25-4REa(b)23.70.0053681696722RZDH402037AESX(Y)400-1.6-40-6/19-2REa(b)42.50

12、.01061201997880RZDH402138AESX(Y)400-1.6-35-6/25-2REa(b)34.50.0116742041924RZDH402239AESX(Y)400-1.6-40-6/19-4REa(b)38.20.00481081953820RZDH402340AESX(Y)400-1.6-30-6/25-4REa(b)31.70.0106681393870RZDH402441AESX(Y)400-2.5-20-3/19-2REa(b)20.90.01061201339510RZDH402542AESX(Y)400-2.5-15-3/25-2REa(b)16.90.0

13、116741419530RZDH402643AESX(Y)400-2.5-20-3/19-4REa(b)18.80.00481081386480RZDH402744AESX(Y)400-2.5-15-3/25-4REa(b)15.60.0053681410505RZDH402845AESX(Y)400-2.5-30-4.5/19-2REa(b)31.60.01061201777739RZDH402946AESX(Y)400-2.5-25-4.5/25-2REa(b)25.60.0116741803765RZDH403047AESX(Y)400-2.5-30-4.5/19-4REa(b)28.4

14、0.00481081746700RZDH403148AESX(Y)400-2.5-25-4.5/25-4REa(b)23.60.0053681782735RZDH403249AESX(Y)400-2.5-40-6/19-2REa(b)42.30.01061202093895RZDH403350AESX(Y)400-2.5-35-6/25-2REa(b)34.40.0116742136938RZDH403451AESX(Y)400-2.5-40-6/19-4REa(b)38.10.00481082049835RZDH403552AESX(Y)400-2.5-30-6/25-4REa(b)31.6

15、0.0053682102888RZDH403653AESX(Y)400-4.0-20-3/19-2REa(b)20.70.01061201586537RZDH403754AESX(Y)400-4.0-15-3/25-2REa(b)16.80.0116741586555RZDH403855AESX(Y)400-4.0-20-3/19-4REa(b)18.60.00481081559507RZDH403956AESX(Y)400-4.0-15-3/25-4REa(b)15.40.0053681583530RZDH404057AESX(Y)400-4.0-30-4.5/19-2REa(b)31.40

16、.01061201943763RZDH404158AESX(Y)400-4.0-25-4.5/25-2REa(b)25.50.0116741971791RZDH404259AESX(Y)400-4.0-30-4.5/19-4REa(b)28.30.00481081915723RZDH404360AESX(Y)400-4.0-25-4.5/25-4REa(b)23.40.0053681951761RZDH404461AESX(Y)400-4.0-40-6/19-2REa(b)42.10.01061202259921RZDH404562AESX(Y)400-4.0-35-6/25-2REa(b)3

17、4.20.0116742302964RZDH404663AESX(Y)400-4.0-35-6/19-4REa(b)37.90.00481082216881RZDH404764AESX(Y)400-4.0-30-6/25-4REa(b)31.40.0053682660914RZDH404865AESX(Y)400-6.4-40-6/19-2REa(b)41.90.01061202660951RZDH404966AESX(Y)400-6.4-35-6/25-2REa(b)34.00.0116742703994RZDH405067AESX(Y)400-6.4-35-6/19-4REa(b)37.7

18、0.00481082622891RZDH405168AESX(Y)400-6.4-30-6/25-4REa(b)31.20.0053682674944RZDH405269AESX(Y)500-1.0-35-3/19-2REa(b)36.00.01822061868791RZDH500170BESX(Y)500-1.0-35-3/19-2REa(b)36.00.01822061714791RZDH500271AESX(Y)500-1.0-30-3/25-2REa(b)28.50.01951241879802RZDH500372BESX(Y)500-1.0-30-3/25-2REa(b)28.50

19、.01951241725802RZDH500473AESX(Y)500-1.0-35-3/19-4REa(b)33.60.00851921856761RZDH500574BESX(Y)500-1.0-35-3/19-4REa(b)33.60.00851921704761RZDH500675AESX(Y)500-1.0-25-3/25-4REa(b)26.70.00911161869772RZDH500776BESX(Y)500-1.0-25-3/25-4REa(b)26.70.00911161717772RZDH500877AESX(Y)500-1.0-55-4.5/19-2REa(b)54.

20、40.018220624161151RZDH500978BESX(Y)500-1.0-55-4.5/19-2REa(b)54.40.018220622621151RZDH501079AESX(Y)500-1.0-45-4.5/25-2REa(b)43.10.019512424261161RZDH501180BESX(Y)500-1.0-45-4.5/25-2REa(b)43.10.019512422721161RZDH501281AESX(Y)500-1.0-50-4.5/19-4REa(b)50.70.008519223861101RZDH501382BESX(Y)500-1.0-50-4.

21、5/19-4REa(b)50.70.008519222341101RZDH501483AESX(Y)500-1.0-40-4.5/25-4REa(b)40.30.009111623991111RZDH501584BESX(Y)500-1.0-40-4.5/25-4REa(b)40.30.009111622471111RZDH501685AESX(Y)500-1.0-70-6/19-2REa(b)72.90.018220628731419RZDH501786BESX(Y)500-1.0-70-6/19-2REa(b)72.90.018220627191419RZDH501887AESX(Y)50

22、0-1.0-55-6/25-2REa(b)57.70.019512428931439RZDH501988BESX(Y)500-1.0-55-6/25-2REa(b)57.70.019512427391439RZDH502089AESX(Y)500-1.0-65-6/19-4REa(b)67.90.008519228251349RZDH502190BESX(Y)500-1.0-65-6/19-4REa(b)67.90.008519226731349RZDH502291AESX(Y)500-1.0-55-6/25-4REa(b)54.00.009111628491372RZDH502392BESX

23、(Y)500-1.0-55-6/25-4REa(b)54.00.009111626971372RZDH502493AESX(Y)500-1.6-35-3/19-2REa(b)35.90.01822061926798RZDH502594BESX(Y)500-1.6-35-3/19-2REa(b)35.90.01822061769798RZDH502695AESX(Y)500-1.6-30-3/25-2REa(b)28.40.01951241937809RZDH502796BESX(Y)500-1.6-30-3/25-2REa(b)28.40.01951241780809RZDH502897AES

24、X(Y)500-1.6-35-3/19-4REa(b)33.40.00851921901768RZDH502998BESX(Y)500-1.6-35-3/19-4REa(b)33.40.00851921744768RZDH503099AESX(Y)500-1.6-25-3/25-4REa(b)26.60.00911161914779RZDH5031100BESX(Y)500-1.6-25-3/25-4REa(b)26.60.00911161757779RZDH5032101AESX(Y)500-1.6-55-4.5/19-2REa(b)54.30.018220624591165RZDH5033

25、102BESX(Y)500-1.6-55-4.5/19-2REa(b)54.30.018220623021165RZDH5034103AESX(Y)500-1.6-45-4.5/25-2REa(b)43.00.019512424691175RZDH5035104BESX(Y)500-1.6-45-4.5/25-2REa(b)43.00.019512423121175RZDH5036105AESX(Y)500-1.6-50-4.5/19-4REa(b)50.60.008519224391115RZDH5037106BESX(Y)500-1.6-50-4.5/19-4REa(b)50.60.008

26、519222821115RZDH5038107AESX(Y)500-1.6-40-4.5/25-4REa(b)40.20.009111624531125RZDH5039108BESX(Y)500-1.6-40-4.5/25-4REa(b)40.20.009111622961125RZDH5040109AESX(Y)500-1.6-70-6/19-2REa(b)72.80.018220629401434RZDH5041110BESX(Y)500-1.6-70-6/19-2REa(b)72.80.018220627831434RZDH5042111AESX(Y)500-1.6-55-6/25-2R

27、Ea(b)57.60.019512429591453RZDH5043112BESX(Y)500-1.6-55-6/25-2REa(b)57.60.019512428021453RZDH5044113AESX(Y)500-1.6-65-6/19-4REa(b)67.80.008519228931364RZDH5045114BESX(Y)500-1.6-65-6/19-4REa(b)67.80.008519227371364RZDH5046115AESX(Y)500-1.6-55-6/25-4REa(b)53.90.009111629161386RZDH5047116BESX(Y)500-1.6-

28、55-6/25-4REa(b)53.90.009111627601386RZDH5048117AESX(Y)500-2.5-35-3/19-2REa(b)35.70.01822062121820RZDH5049118BESX(Y)500-2.5-35-3/19-2REa(b)35.70.01822061920820RZDH5050119AESX(Y)500-2.5-30-3/25-2REa(b)28.30.01951242132831RZDH5051120BESX(Y)500-2.5-30-3/25-2REa(b)28.30.01951241931831RZDH5052121AESX(Y)50

29、0-2.5-35-3/19-4REa(b)33.20.00851922109790RZDH5053122BESX(Y)500-2.5-35-3/19-4REa(b)33.20.00851921909790RZDH5054123AESX(Y)500-2.5-25-3/25-4REa(b)26.40.00911162122801RZDH5055124BESX(Y)500-2.5-25-3/25-4REa(b)26.40.00911161922801RZDH5056125AESX(Y)500-2.5-55-4.5/19-2REa(b)54.10.018220626701188RZDH5057126B

30、ESX(Y)500-2.5-55-4.5/19-2REa(b)54.10.018220624681188RZDH5058127AESX(Y)500-2.5-40-4.5/25-2REa(b)42.80.019512426801198RZDH5059128BESX(Y)500-2.5-40-4.5/25-2REa(b)42.80.019512424791198RZDH5060129AESX(Y)500-2.5-50-4.5/19-4REa(b)50.40.008519226411138RZDH5061130BESX(Y)500-2.5-50-4.5/19-4REa(b)50.40.0085192

31、24411138RZDH5062131AESX(Y)500-2.5-40-4.5/25-4REa(b)40.10.009111626541148RZDH5063132BESX(Y)500-2.5-40-4.5/25-4REa(b)40.10.009111624541148RZDH5064 133AESX(Y)500-2.5-70-6/19-2REa(b)72.50.018220631351457RZDH5065134BESX(Y)500-2.5-70-6/19-2REa(b)72.50.018220629541457RZDH5066135AESX(Y)500-2.5-55-6/25-2REa(

32、b)57.40.019512431551476RZDH5067136BESX(Y)500-2.5-55-6/25-2REa(b)57.40.019512429541476RZDH5068137AESX(Y)500-2.5-65-6/19-4REa(b)67.60.008519230881387RZDH5069138BESX(Y)500-2.5-65-6/19-4REa(b)67.60.008519228881387RZDH5070139AESX(Y)500-2.5-55-6/25-4REa(b)53.70.009111631101409RZDH5071140BESX(Y)500-2.5-55-

33、6/25-4REa(b)53.70.009111629101409RZDH5072141AESX(Y)500-4.0-35-3/19-2REa(b)35.20.01822062336867RZDH5073142BESX(Y)500-4.0-35-3/19-2REa(b)35.20.01822062119867RZDH5074143AESX(Y)500-4.0-25-3/25-2REa(b)27.90.01951242347878RZDH5075144BESX(Y)500-4.0-25-3/25-2REa(b)27.90.01951242130878RZDH5076145AESX(Y)500-4

34、.0-30-3/19-4REa(b)32.80.00851922328837RZDH5077146BESX(Y)500-4.0-30-3/19-4REa(b)32.80.00851922113837RZDH5078147AESX(Y)500-4.0-25-3/25-4REa(b)26.10.00911162341848RZDH5079148BESX(Y)500-4.0-25-3/25-4REa(b)26.10.00911162126848RZDH5080149AESX(Y)500-4.0-55-4.5/19-2REa(b)53.60.018220628841234RZDH5081150BESX

35、(Y)500-4.0-55-4.5/19-2REa(b)53.60.018220626671234RZDH5082151AESX(Y)500-4.0-40-4.5/25-2REa(b)42.50.019512428941244RZDH5083152BESX(Y)500-4.0-40-4.5/25-2REa(b)42.50.019512426771244RZDH5084153AESX(Y)500-4.0-50-4.5/19-4REa(b)50.00.008519228571184RZDH5085154BESX(Y)500-4.0-50-4.5/19-4REa(b)50.00.0085192264

36、11184RZDH5086155AESX(Y)500-4.0-40-4.5/25-4REa(b)39.70.009111628701194RZDH5087156BESX(Y)500-4.0-40-4.5/25-4REa(b)39.70.009111626541194RZDH5088157AESX(Y)500-4.0-70-6/19-2REa(b)72.10.018220633421497RZDH5089158BESX(Y)500-4.0-70-6/19-2REa(b)72.10.018220631261497RZDH5090159AESX(Y)500-4.0-55-6/25-2REa(b)57

37、.10.019512433601515RZDH5091160BESX(Y)500-4.0-55-6/25-2REa(b)57.10.019512431441515RZDH5092161AESX(Y)500-4.0-65-6/19-4REa(b)67.20.008519232901427RZDH5093162BESX(Y)500-4.0-65-6/19-4REa(b)67.20.008519230741427RZDH5094163AESX(Y)500-4.0-55-6/25-4REa(b)53.40.009111633121448RZDH5095164BESX(Y)500-4.0-55-6/25

38、-4REa(b)53.40.009111630961448RZDH5060165AESX(Y)500-6.4-70-6/19-2REa(b)71.50.018220642271573RZDH5061166BESX(Y)500-6.4-70-6/19-2REa(b)71.50.018220641071573RZDH5062167AESX(Y)500-6.4-55-6/25-2REa(b)56.50.019512444461592RZDH5063168BESX(Y)500-6.4-55-6/25-2REa(b)56.50.019512441261592RZDH5064169AESX(Y)500-6

39、.4-65-6/19-4REa(b)66.60.008519243901503RZDH5065170BESX(Y)500-6.4-65-6/19-4REa(b)66.60.008519240691503RZDH5066171AESX(Y)500-6.4-55-6/25-4REa(b)53.00.009111644111532RZDH5067172BESX(Y)500-6.4-55-6/25-4REa(b)53.00.009111640901532RZDH5068173AESX(Y)600-1.0-55-3/19-2REa(b)56.60.028632425891211RZDH6001174BE

40、SX(Y)600-1.0-55-3/19-2REa(b)56.60.028632423641211RZDH6002175AESX(Y)600-1.0-45-3/25-2REa(b)45.50.031130823741221RZDH6003176BESX(Y)600-1.0-45-3/25-2REa(b)45.50.031130823741221RZDH6004177AESX(Y)600-1.0-55-3/19-4REa(b)53.80.013619825751392RZDH6005178BESX(Y)600-1.0-55-3/19-4REa(b)53.80.013619823501392RZD

41、H6006179AESX(Y)600-1.0-45-3/25-4REa(b)43.20.014818825841171RZDH6007180BESX(Y)600-1.0-45-3/25-4REa(b)43.20.014818823591171RZDH6008181AESX(Y)600-1.0-50-3/19-6REa(b)49.60.00428425661111RZDH6009182BESX(Y)600-1.0-50-3/19-6REa(b)49.60.008428423481111RZDH6010183AESX(Y)600-1.0-35-3/25-6REa(b)36.30.008315825

42、291055RZDH6011184BESX(Y)600-1.0-35-3/25-6REa(b)36.30.008315823111055RZDH6012185AESX(Y)600-1.0-85-4.5/19-2REa(b)85.60.028632433751771RZDH6013186BESX(Y)600-1.0-85-4.5/19-2REa(b)85.60.028632431491771RZDH6014187AESX(Y)600-1.0-70-4.5/25-2REa(b)68.80.031130833911787RZDH6015188BESX(Y)600-1.0-70-4.5/25-2REa

43、(b)68.80.031130831651787RZDH6016189AESX(Y)600-1.0-80-4.5/19-4REa(b)81.30.013619833431711RZDH6017190BESX(Y)600-1.0-80-4.5/19-4REa(b)81.30.013619831181711RZDH6018191AESX(Y)600-1.0-65-4.5/25-4REa(b)65.30.014818833571727RZDH6019192BESX(Y)600-1.0-65-4.5/25-4REa(b)65.30.014818831321727RZDH6020193AESX(Y)60

44、0-1.0-75-4.5/19-6REa(b)75.00.00428433111621RZDH6021194BESX(Y)600-1.0-75-4.5/19-6REa(b)75.00.008428430911621RZDH6022195AESX(Y)600-1.0-55-4.5/25-6REa(b)54.90.008315832571537RZDH6023196BESX(Y)600-1.0-55-4.5/25-6REa(b)54.90.008315830391537RZDH6024197AESX(Y)600-1.0-115-6/19-2REa(b)114.90.028632440092180R

45、ZDH6025198BESX(Y)600-1.0-115-6/19-2REa(b)114.90.028632437842180RZDH6026199AESX(Y)600-1.0-90-6/25-2REa(b)92.10.031119840392213RZDH6027200BESX(Y)600-1.0-90-6/25-2REa(b)92.10.031119838172213RZDH6028 201AESX(Y)600-1.0-110-6/19-4REa(b)108.90.013630839562100RZDH6029202BESX(Y)600-1.0-110-6/19-4REa(b)108.90.013630837312100RZDH6030203AESX(Y)600-1.0-85-6/25-4REa(b)87.50.014818839872130RZDH6031204BESX(Y)600-1.0-85-6/25-4REa(b)87.50.014818837622130RZDH6032205AESX(Y)600-1.0-100-6/19-6REa(b)100.40.008428438991979RZDH6033206BESX(Y)600-1.0-100-6/19-6REa(b)100.40.008428436811979RZDH6034207AESX(Y)600-1