丹佛斯MBS33-1811-3AB08特價銷售

丹麥丹佛斯（Danfoss）特約授權(quán)經(jīng)銷商，長期供應(yīng)丹佛斯釬焊式板式式換熱器，丹佛斯壓力開關(guān)、丹佛斯壓力變送器，丹佛斯變頻器，丹佛斯軟啟動器，丹佛斯溫度傳感器，丹佛斯自勵式溫控閥，丹佛斯電磁閥，丹佛斯溫度開關(guān)，丹佛斯壓差開關(guān)
丹佛斯(d)KP和RT系列，MBS系列壓力變送器，KP和RT系列溫度開關(guān)，MBT系列溫度傳感器，EV電磁閥，AVTA系列溫控閥

上海心雨機電設(shè)備有限公司

聯(lián)系人:陳飛(銷售)

電話:021-60512090，

傳真:021-60512090   021-55032832

在線QQ：1536539934   1277069118  840441766

網(wǎng)址:http://www.haitun158.com

郵件:1536539934@qq.com

手機:18717727483

丹佛斯MBS33壓力變送器幾乎適用于所有的工業(yè)應(yīng)用，即使在惡劣的環(huán)境條件下，它們也能提供可靠的壓力測量。這款靈活的壓力變送器系列有著4-20mA輸出信號，絕對壓力和表壓（相對壓力）型號，從0-1到0-600bar的測量范圍以及規(guī)格齊全的壓力和電氣連接。優(yōu)秀的抗振能力，可靠的結(jié)構(gòu)，以及高度的EMC/EMI保護，使得該壓力變送器符合最嚴格的工業(yè)要求。
產(chǎn)品代碼 類型描述
060G1347 MBS33-3411-1ad08
060G1375 MBS33-14111AC04
060G1362 MBS33-2211-1Ac04
060G1694 MBS33-XX11-XAB08(IP68)
060G1768 MBS33-1821-xAB08
060G1847 MBS33-3611-1xxx
060G2098 MBS33CARTRIDGEPR.TR
060G2099 MBS33
060G2177 MBS33
060G2199 MBS33
060G1977 MBS33-2011-1GB04
060G3005 MBS33-0811-1AB08
060G3006 MBS33-1011-1AB08
060G3007 MBS33-1211-1AB08
060G3008 MBS33-1411-1AB08
060G3009 MBS33-1611-1AB08
060G3010 MBS33-1811-1AB08
060G3011 MBS33-2011-1AB08
060G3012 MBS33-2211-1AB08
060G3013 MBS33-2411-1AB08
060G3014 MBS33-2611-1AB08
060G3015 MBS33-2811-1AB08
060G3016 MBS33-3011-1AB08
060G3017 MBS33-3211-1AB08
060G3018 MBS33-3411-1AB08
060G3019 MBS33-3611-1AB08
060G3020 MBS33-3811-1AB08
060G3023 MBS33-xx11-1AB08
060G3036 MBS33-1021-1AB08
060G3037 MBS33-1221-1AB08
060G3038 MBS33-1421-1AB08
060G3039 MBS33-1621-1AB08
060G3040 MBS33-1821-1AB08
060G3041 MBS33-2021-1AB08
060G3042 MBS33-2221-1AB08
060G3043 MBS33-2421-1AB08
060G3050 MBS32-1225-1AB08
060G3056 MBS33-1011-3AB08
060G3057 MBS33-1211-3AB08
060G3058 MBS33-1411-3AB08
060G3059 MBS33-1611-3AB08
060G3060 MBS33-1811-3AB08
060G3061 MBS33-2011-3AB08
060G3062 MBS33-2211-3AB08
060G3063 MBS33-2411-3AB08
060G3064 MBS33-2611-3AB08
060G3065 MBS33-2811-3AB08
060G3066 MBS33-3011-3AB08
060G3067 MBS33-3211-3AB08
060G3068 MBS33-3411-3AB08
060G3069 MBS33-3611-3AB08
060G3070 MBS33-3811-3AB08
060G3076 MBS33CARTRIDGEPR.TR
060G3077 MBS33
060G3086 MBS33-1021-3AB08
060G3087 MBS33-1221-3AB08
060G3088 MBS33-1421-3AB08
060G3089 MBS33-1621-3AB08
060G3090 MBS33-1821-3AB08
060G3091 MBS33-2021-3AB08
060G3092 MBS33-2221-3AB08
060G3093 MBS33-2421-3AB08
060G3281 MBS33-xx11-1AB04
060G3287 MBS33-xx11-1AB08
060G3288 MBS33-xx11-1AB08
060G3292 MBS33-2211-1AB06
060G3298 MBS33-3611-1AB04
060G3334 MBS33NPT
060G3335 MBS33-6211-1AC04
060G3336 MBS33-6411-1AC04
060G3337 MBS33-6611-1AC04
060G3341 MBS33NPT
060G3342 MBS33NPT
060G3343 MBS33-5211-1AC04
060G3344 MBS33-5411-1AC04
060G3345 MBS33NPT
060G3346 MBS33-5811-1AC04
060G3350 MBS33NPT
060G3351 MBS33NPT
060G3353 MBS33-5821-1AC04
060G3356 MBS33NPT
060G3629 MBS33-1411-1BA12
060G3928 MBS33M-XXXX-XXXXX
060G4001 MBS33-2011-1AB08
060G4003 MBS33
060G4017 MBS33CARTRIDGEPR.TR
060G4019 MBS33060G3012(14PCS)
060G4022 MBS33CARTRIDGEPRESSURETR
060G4098 MBS33/IP
060G4101 MBS33-3411-1ad08/IP
060G4124 MBS33M060G3124(14PCS)
060G4127 MBSCARTRIDGEPRESSURETRANS
060G4136 MBSCARTRIDGEPRESSURETRANS
060G4137 MBS33
060G4172 MBS33CARTRIDGEPR.TR/IP
060G5001 MBS33106111AA041112SANITARY
060G5015 MBS33106111AC041112SANITARY
060G5023 MBS33,106111AB031112,san
060G5040 MBS33105111AA041112SANITARY
060G5050 MBS33108111AC041112SANITARY
060G5077 MBS33,104111AB031112,san
060G5082 MBS33108111AB031112SANITARY
060G5083 MBS33105111AC041112SANITARY
060G5086 MBS33108111AA041112SANITARY
060G5161 MBS33withSanitaryPressureconnection
丹弗斯AVTA是一款適用于冷卻應(yīng)用的自勵式溫控閥。該閥門常和液壓站配套使用，并通常被稱為“免維護”閥，因為它擁有能在數(shù)十年內(nèi)保持正常工作的巨大可靠性
型號   代號    重量  傳感器溫度 連接 流口大小 閥體材料 介質(zhì)溫度 充注形式 毛細管長度    Ｋv
　 　 (kg) 范圍℃ 　 ｍｍ ℃ 范圍 　                                      ｍｍ         ｍ3/h
AVTA 003N2132  1.65   0-30℃  G 1/2   15      黃銅     -25-130℃ 通用    2.000        1,900 
AVTA 003N3132  1.70   0-30℃  G 3/4   20      黃銅     -25-130℃ 通用    2.000        3,400
AVTA 003N4132  1.84   0-30℃  G 1     25      黃銅     -25-130℃ 通用    2.000        5,500 
AVTA 003N1144  1.58   10-80℃ G 3/8   10      黃銅     -25-130℃ 通用    2.300        1,400 
AVTA 003N0107  1.50   10-80℃ G 1/2   15      黃銅     -25-130℃ 通用    2.300        1,900 
AVTA 003N0108  1.56   10-80℃ G 3/4   20      黃銅     -25-130℃ 通用    2.300        3,400 
AVTA 003N0109  1.70   10-80℃ G 1     25      黃銅     -25-130℃ 通用    2.300        5,500 
AVTA 003N4150  1.64   10-80℃ G 1     25      不銹鋼   -25-130℃ 通用    2.300        5,500 
AVTA 003N1162  1.69   25-65℃ G 3/8   10      黃銅     -25-130℃ 通用    2.000        1,400 
AVTA 003N0045  1.53   25-65℃ G 1/2   15      黃銅     -25-130℃ 通用    2.000        1,900 
AVTA 003N2162  1.63   25-65℃ G 1/2   15      黃銅     -25-130℃ 通用    3.000        1,900 
AVTA 003N0046  1.60   25-65℃ G 3/4   20      黃銅     -25-130℃ 通用    5.000        3,400 
AVTA 003N3162  1.67   25-65℃ G 3/4   20      黃銅     -25-130℃ 通用    5.000         3,400 
AVTA 003N0047  1.65   25-65℃ G 1     25      黃銅     -25-130℃ 通用    2.000         5,500 
AVTA 003N4162  1.79   25-65℃ G 1     25      黃銅     -25-130℃ 通用    2.000         5,500 
AVTA 003N2182  1.64   50-90℃ G 1/2   15      黃銅     -25-130℃ 通用    2.000         1,900 
AVTA 003N3182  1.69   50-90℃ G 3/4   20      黃銅     -25-130℃ 通用    2.000         3,400 
AVTA 003N4182  1.82   50-90℃ G 1     25      黃銅     -25-130℃ 通用    2.000         5,500

MBC壓力開關(guān)適用于那些需要著重考慮空間和可靠性要求的海上應(yīng)用。MBC壓力開關(guān)具有緊湊的結(jié)構(gòu)，并且基于我們最新的模塊式設(shè)計，它們可以抵抗船舶機械艙中的各種惡劣工況。MBC具有高度抗振性能，并且通過了所有的常見的船級認證�；夭罟潭�，但很小，可以保證對關(guān)鍵壓力的精確監(jiān)視。
?壓力范圍：-0.2到400bar
?低回差（固定）微型開關(guān) 
?防護等級IP65堅固耐用，抗海水侵蝕 
?結(jié)構(gòu)緊湊可靠
?抗沖擊、抗振動
?膜片式針對脈動特性的應(yīng)用 
?針對壓力峰值和介質(zhì)為海水的應(yīng)用
?安裝成本低 
?可提供壓差開關(guān)
?易于安裝到測試閥塊上
061B201266 MBC5000-1011-1CB04
061B200066 MBC5000-1411-1CB04
061B200166 MBC5000-3421-1CB04
061B200266 MBC5000-1411-1DB04
061B200366 MBC5000-3421-1DB04
061B200466 MBC5000-1211-1DB04
061B200566 MBC5000-1011-1DB04
061B200966 MBC5000-1011-1CB04
061B201566 MBC5000-1011-0DB04
061B201666 MBC5000-1211-0DB04
061B201766 MBC5000-1211-0DB04
061B208666 MBC5000
061B208866 MBC5000-2431-1CB04
061B300066 MBC5000-3231-1CB04
061B300166 MBC5000-4241-1CB04
061B300266 MBC5000-3231-1DB04
061B300366 MBC5000-4241-1DB04
061B300466 MBC5000-2431-1DB04
061B300566 MBC5000-3641-1DB04
061B300666 MBC5000-3441-1CB04
061B300766 MBC5000-3641-1CB04
061B300866 MBC5000-2431-1CB04
061B301266 MBC5000
061B500066 MBC5000-5651-1CB04
061B500166 MBC5000-5451-1CB04
061B500266 MBC5000-5251-1CB04
061B500466
061B500566 MBC 5000-XX51-1XXXX/ 25 - 350 bar Pe
061B400101 ACCESSORY BAG
061B400201 ACCESSORY BAG
061B201266 MBC5000-1011-1CB04
061B200066 MBC5000-1411-1CB04
061B200166 MBC5000-3421-1CB04
061B200266 MBC5000-1411-1DB04
061B200366 MBC5000-3421-1DB04
061B200466 MBC5000-1211-1DB04
061B200566 MBC5000-1011-1DB04
061B200966 MBC5000-1011-1CB04
061B201566 MBC5000-1011-0DB04
061B201666 MBC5000-1211-0DB04
061B201766 MBC5000-1211-0DB04
061B208666 MBC5000
061B208866 MBC5000-2431-1CB04
061B300066 MBC5000-3231-1CB04
061B300166 MBC5000-4241-1CB04
061B300266 MBC5000-3231-1DB04
061B300366 MBC5000-4241-1DB04
061B300466 MBC5000-2431-1DB04
061B300566 MBC5000-3641-1DB04
061B300666 MBC5000-3441-1CB04
061B300766 MBC5000-3641-1CB04
061B300866 MBC5000-2431-1CB04
061B301266 MBC5000
061B500066 MBC5000-5651-1CB04
061B500166 MBC5000-5451-1CB04
061B500266 MBC5000-5251-1CB04
061B500466
061B500566 MBC 5000-XX51-1XXXX/ 25 - 350 bar Pe
061B400101 ACCESSORY BAG
061B400201 ACCESSORY BAG
丹佛斯(danfoss)MBC5000-1411-1CB04壓力開關(guān)
MBC5100-3231-1DB04現(xiàn)貨
061B010266現(xiàn)貨
061B110566現(xiàn)貨
丹佛斯(d)KP和RT系列，MBS系列壓力變送器，KP和RT系列溫度開關(guān)，MBT系列溫度傳感器，EV電磁閥，AVTA系列溫控閥

MBC5000系列壓力開關(guān)
           MBC5100-2431-2DB04
           MBC5100-3231-1DB04

           MBC5100-2431-2CB04
061B012566 MBC5100-1411-1DB04
061B012666 MBC5100-1411-1DB04
061B012766 MBC5100-1411-1DB04
061B012966 MBC5100-1011-1DB04
061B013366 MBC5100
061B013466 MBC5100
061B013566 MBC5100-1411-2DB04
061B015966 MBC 5100-1411-3DA05/ -0,2 - 10 bar Pe
061B016366 MBC 5100
061B016466 MBC 5100
061B040066 MBC5100-2621-1DB04
061B100066 MBC5100-3231-1CB04
061B100166 MBC5100-4241-1CB04
061B100266 MBC5100-3231-1DB04
061B100366 MBC5100-4241-1DB04
061B100466 MBC5100-2431-1DB04
061B100566 MBC5100-3641-1DB04
061B100666 MBC 5100
061B100766 MBC5100-3641-1CB04
061B100866 MBC5100-2431-1CB04
061B100966 MBC5100-2231-1DB04
061B101266 MBC5100-4441-1CB04
061B101466 MBC5100-2431-1DB04
061B101666 MBC5100-243X-1CB04
061B101766 MBC5100-2031-1DB04
061B102366 MBC5100-2031-1CB04
061B102466 MBC5100-3331-1DB04
061B102566 MBC5100-2431-2DB04,set.2bar
061B102766 MBC5100
061B102966 MBC 5100-2231-2DB04/ 1 - 6 bar Pe
061B103566 MBC 5100
061B105466 MBC 5100 2431-3DB04
061B106966 MBC5100-2231-1DA05
061B108066 MBC5100-2231-3DA05
061B108166 MBC5100-2231-3DA05
061B108366 MBC5100-2231-3DA05
061B110066 MBC5100-3231-2CB04
061B110166 MBC5100-4241-2CB04
061B110266 MBC5100-3231-2DB04
061B110366 MBC5100-4241-2DB04
061B110466 MBC5100-2431-2DB04
061B110566 MBC5100-3641-2DB04
061B110766 MBC5100-3641-2CB04
061B110866 MBC5100-2431-2CB04
061B111066 MBC 5100
061B200866 MBC 5100 HERM
061B201066 MBC5100-1211-1CB04
061B201266 MBC5100-1011-1CB04
061B201466 MBC5100-36X1-1XXXX
061B208066 MBC5100-1411-1XXXX
061B208166 MBC5100-36X1-1XXXX
061B208266 MBC5100-1011-0DB04/IP
061B208366 MBC5100-3421-2DB04/IP
061B510066 MBC 5100-5251-1CB04/ 16 - 160
061B510166 MBC 5100-5451-1CB04/ 25 - 250 bar Pe
061B510266 MBC 5100-5651-1CB04/ 40 - 400 bar Pe
丹佛斯(danfoss)MBC5000-1411-1CB04壓力開關(guān)
061B126066 MBC 5080 Diff. pressure
061B127066 MBC 5080 Diff. pressure
061B128066 MBC 5180 Diff. pressure
061B128166 MBC 5180 Diff. pressure
061B128266 MBC 5180 2031-3DB04
061B128966 MBC 5180 Diff. pressure
061B129066 MBC 5180 Diff. pressure
以上大量現(xiàn)貨！
丹弗斯MBS32/MBS32R
產(chǎn)品代碼 類型描述
060G0045 MBS32R
060G0079 MBS32R3816-1AB08
060G0085 MBS32R
060G0091 MBS32R
060G0118 MBS32R3416-1AB08
060G0137 MBS32R2616-1AB08
060G1188 MBS32NPT
060G1189 MBS32NPT
060G1190 MBS32NPT
060G1191 MBS32NPT
060G1193 MBS32NPT
060G1222 MBS32-1015-1AB08
060G1223 MBS32-1215-1AB08
060G1224 MBS32-1415-1AB08
060G1225 MBS32-1615-1AB08
060G1226 MBS32-1815-1AB08
060G1228 MBS32-2215-1AB08
060G1229 MBS32-2415-1AB08
060G1239 MBS32-2615-1AB08
060G1249 MBS32-2815-1AB08
060G1259 MBS32-3015-1AB08
060G1260 MBS32-3215-1AB08
060G1261 MBS32-3415-1AB08
060G1262 MBS32-3615-1AB08
060G1263 MBS32-3815-1AB08
060G1264 MBS32-1025-1AB08
060G1266 MBS32-1425-1AB08
060G1267 MBS32-1625-1AB08
060G1268 MBS32-1825-1AB08
060G1269 MBS32-2025-1AB08
060G1270 MBS32-2225-1AB08
060G1271 MBS32-2425-1AB08
060G1272 MBS32-1024-1AB08
060G1273 MBS32-1224-1AB08
060G1274 MBS32-1424-1AB08
060G1275 MBS32-1624-1AB08
060G1276 MBS32-1824-1AB08
060G1277 MBS32-2024-1AB08
060G1278 MBS32-2224-1AB08
060G1279 MBS32-2424-1AB08
060G1280 MBS32-1014-1AB08
060G1281 MBS32-1214-1AB08
060G1282 MBS32-1414-1AB08
060G1284 MBS32-1814-1AB08
060G1286 MBS32-2214-1AB08
060G1287 MBS32-2414-1AB08
060G1288 MBS32-2614-1AB08
060G1289 MBS32-2814-1AB08
060G1290 MBS32-3014-1AB08
060G1291 MBS32-3214-1AB08
060G1293 MBS32-3614-1AB08
060G1294 MBS32-3814-1AB08
060G1316 MBS32-3015-1ab04
060G1479 MBS32-5612-1AC04
060G1537 MBS32-2012-1AB08
060G1550 MBS32-2612-1EB08
060G1555 MBS32RCARTRIDGEPRESSURETR
060G1762 MBS32-7812-1AC04
060G1824 MBS32R-XX16-1AC04-X
060G1827 MBS32R-2816-1GB04
060G1828 MBS32R-3616-1GB04
060G1921 MBS32-3615-3BB04
060G1987 MBS32R-2816-XBD10
060G2085 MBS32-2015-1AB08
060G2086 MBS32-1225-3AB08
060G2174 MBS32-1012-1BB04
060G2410 MBS32
060G2411 MBS32
060G3285 MBS32-1614-1AB08
060G3286 MBS32-xx12-1AB08
060G3607 MBS32-XX25-1AB08
060G3608 MBS32-3414-1AB04
060G3835 MBS32-2013-1BB04
060G3838 MBS32R-2816-1AB06
060G3839 MBS32R-3616-1AB06
060G4239 MBS32-2215-1AB08
060G4467 MBS32-1425-1AB08060G1266(14psc)
060G4468 MBS32-1625-1AB08060G1267(14psc.)
060G3079 MBS32-2014-1AB08
060G3080 MBS32-3414-1AB08
060G3027 MBS32-2413-1AB08
060G3028 MBS32-3013-1AB08
060G3029 MBS32-3613-1AB08
060G3291 MBS32-2425-3AB04
MBS33

 
MBS33M
產(chǎn)品代碼 類型描述
060G1200 MBS33M
060G1201 MBS33M
060G1202 MBS33M
060G1203 MBS33M
060G1204 MBS33M
060G1205 MBS33M
060G1206 MBS33M
060G1207 MBS33M
060G1208 MBS33M
060G1209 MBS33M
060G1210 MBS33M
060G1211 MBS33M
060G1212 MBS33M
060G1213 MBS33M
060G1214 MBS33M
060G1215 MBS33M
060G1216 MBS33M
060G1217 MBS33M
060G1218 MBS33M
060G1219 MBS33M
060G1220 MBS33M
060G1221 MBS33M
060G1231 MBS33M
060G1233 MBS33M
060G1234 MBS33M
060G1237 MBS33M
060G1243 MBS33M
060G1654 MBS33MCARTRIDGEPR.TR
060G1655 MBS33MCARTRIDGEPR.TR
060G1656 MBS33MCARTRIDGEPR.TR
060G1705 MBS33M,-1to3barSG,G1/2A
060G1919 MBS33M
060G3121 MBS33M,0-1bar,pl
060G3122 MBS33M,0-1,6bar,pl
060G3123 MBS33M,0-2,5bar,pl
060G3124 MBS33M,0-4bar,pl
060G3125 MBS33M,0-6bar,pl
060G3126 MBS33M,0-10bar,pl
060G3127 MBS33M,0-16bar,pl
060G3128 MBS33M,0-25bar,pl
060G3129 MBS33M,0-40bar,pl
060G3130 MBS33M,0-60bar,pl
060G3131 MBS33M,0-100bar,pl
060G3132 MBS33M,0-160bar,pl
060G3133 MBS33M,0-250bar,pl
060G3134 MBS33M,0-400bar,pl
060G3135 MBS33M,0-600bar,pl
060G3139 MBS33M,0-4bar,cable
060G3140 MBS33M,0-6bar,cable
060G3141 MBS33M,0-10bar,cable
060G3142 MBS33M,0-16bar,cable
060G3143 MBS33M,0-25bar,cable
060G3144 MBS33M,0-40bar,cable
060G3145 MBS33M,0-60bar,cable
060G3146 MBS33M,0-100bar,cable
060G3147 MBS33M,0-160bar,cable
060G3148 MBS33M,0-250bar,cable
060G3149 MBS33M,0-400bar,cable
060G3150 MBS33M,0-600bar,cable
060G3282 MBS33M
060G3283 MBS33M
060G3736 MBS33M-XXXX-XXXXX
060G4016 MBS33M
060G4018 MBS33M
MBV2000
產(chǎn)品代碼 類型描述
061B6000 MBV2000M18x1,5/M18x1,5
061B6001 MBV2000G1/4"/G1/4"
061B6002 MBV2000G1/4"/G1/2"
061B6003 MBV2000G1/2"/G1/2"
061B6004 MBV2000G1/4"/G1/4NPT
061B6005 MBV2000G1/4"/7/16-20UNF-2A
061B6006 MBV2000G1/4"/9/16-18UNF-2A
061B6007 ADAPTORG1/4"/3/4/16-18UNF-2A
061B6008 ISOLATEVALVEG1/2/1/4-18NPT
061B6012 ISOLATEVALVEM14x1,5/M14x1,5.
 
 
MBS附件
產(chǎn)品代碼 類型描述
060G0005 Din-shipsplugpg13.5
060G0006 accessorybagdin-shipsplugpg11
060G0007 accessorybagdin-shipsplugpg11
060G0008 accessorybagdin-shipsplugpg9
084G0121 CONSOLE
084G0132 WELDINGNIPPELG3/8UNIOMIT
084G0160 ACCESSORYBAG
060G0250 PULSSNUBBER
060G0251 PULSSNUBBER
060G0252 PULSSNUBBER
060G0254 PULSSNUBBER
060G0289 NIPPLE1/2"
060G0410 ACCESSORYBAG
060G0411 ACCESSORYBAG
060G0412 ACCESSORYBAG
060G1021 ACCESSORYBAG
060G1022 ACCESSORYBAG
060G1023 ACCESSORYBAG
060G1024 ACCESSORYBAG
060G1025 ACCESSORYBAG
060G1027 ACCESSORYBAG
060G1028 ACCESSORYBAG
060G1029 ACCESSORYBAG
060G1030 ACCESSORYBAG
060G1031 ACCESSORYBAG
060G2501 WELDINGNECK
060G2502 CLAMPADAPTORFORMBS4510
060G2503 adapter11/2"SMS1145
060G2505 connectionDN40
060G2506 MBS4510FLUSH
060G2510 2"ClampMBS4510
060G2850 DisplayMBD1000forAKS/MBT/MBS
060G4323 Accessorybag
060G4324 Accessorybag
060G4325 StahlSafetybarrier
060G4326 StahlSafetybarrier
060G4327 StahlSafetybarrier
060G4328 StahlI.S.Isolator
060G4329 Stahl160mAspareback-upfuses