ACE 038K2 NTBP主機燃油泵IMO配件螺桿機械密封
ACE 032N2 NTBP船用分油機供油泵配件包G053
ACE系列螺桿泵
產品概述
流量:300~3,000 升/分鐘
壓差:16 巴
適用范圍:燃油,潤滑、循環、輸送
用 途
ACE ACG ACF 泵可用于多種流體介質,如潤滑油、燃油、植物油、液壓油以及其它液壓流體、乙二醇、聚合物、乳化液和任何帶有一定潤滑特性的非侵蝕性流體。
IMO瑞典ACE 032L2 NTBP發電機燃油循環泵。
南京海林柯泵業有限公司
訂貨電話:18014825219 025-85996700
傳真詢價:025-85996700
業務QQ:3500691501
郵箱:hlkby88@163.com
http://www.njsettima.com/
聯系人:夏江
ACE 038K2 NTBP
ACE025L1IVBP
ACD025系列三螺桿泵
ACD025 N6 NVBP ACD025 N6 NTBP
ACD025 L6 NVBP ACD025 L6 NTBP
ACD025 N6 IVBP ACD025 N6 ITBP
ACD025 L6 IVBP ACD025 L6 ITBP
IMO AB燃油輸送泵ACG 070N7 NTBP
IMO AB/燃油服務泵ACG 052N7 NTBP
機械密封ACE 032 N2 NTBP瑞典IMO螺桿泵ACE025N3NVBP、ACE025L3NVBP、ACE025N3NTBP、ACE025L3NTBP瑞典IMO螺桿泵
ACE032N3NVBP、ACE032L3NVBP、ACE032N3NTBP、ACE032L3NTBP瑞典IMO螺桿泵
ACE038N3NVBP、ACE038L3NVBP、ACE038N3NTBP、ACE038L3NTBP瑞典IMO螺桿泵
ACG045N7NVBP、ACG045K7NVBP、ACG045N7NTBP、ACG045K7NTBP瑞典IMO螺桿泵
ACG052N7NVBP、ACG052K7NVBP、ACG052N7NTBP、ACG052K7NTBP瑞典IMO螺桿泵
ACG060N7NVBP、ACG060K7NVBP、ACG060N7NTBP、ACG060K7NTBP瑞典IMO螺桿泵
ACG070N7NVBP、ACG070K7NVBP、ACG070N7NTBP、ACG070K7NTBP瑞典IMO螺桿泵
ACF090K5IVBP、ACF090N5IVBP、ACF090K4IRBO、ACF090N4IRBO瑞典IMO螺桿泵
ACF100K5IVBP、ACF100N5IVBP、ACF100K4IRBO、ACF100N4IRBO瑞典IMO螺桿泵
ACF125K5IVBP、ACF125N5IVBP、ACF125K4IRBO、ACF125N4IRBO螺桿泵
AKP-SNH80ER46E8.9W69
ASNH280R46U8W2
ATP-320HVB
ASNH80-42
ACE 032 N3 NVBP瑞典IMO螺桿泵ace 025配件ABQ 110 DN5 SCREW PUMP
ABQ 110 3 SCREW PUMP
ABQ 110 3L DN5M SCREW PUMP
ABQ 125 3 SCREW PUMP
ABQ 125 3 DN 5M SCREW PUMP
ABQ 125 3L SCREW PUMP
ABQ 125 3L DN5M SCREW PUMP
ABQ 125 L5 IRVP SCREW PUMP
ABQ 140 3 DN5M SCREW PUMP
ABQ 140 3N4M SCREW PUMP
ABQ 140 P5 IRVP SCREW PUMP
ABQ 180 3L W4M SCREW PUMP
ACD 025 2LN6F SCREW PUMP
ACD 025 2N6F SCREW PUMP
ACD 025 L6 IRBO SCREW PUMP
ACD 025 L6 IRBP SCREW PUMP
ACD 025 L6 ITBP SCREW PUMP
ACD 025 L6 IVBP SCREW PUMP
ACD 025 L6 NTBP SCREW PUMP
ACD 025 L6 NVBP SCREW PUMP
ACD 025 N1 NRBP SCREW PUMP
ACD 025 N6 IRBP SCREW PUMP
ACD 025 N6 IVBP SCREW PUMP
ACD 025 N6 NVBO SCREW PUMP
ACD 025 N6 NVBP SCREW PUMP
ACE 025 2L N6F SCREW PUMP
ACE 025 2L2 SCREW PUMP
KG70KY/7.5F4螺桿泵IMO AB公司
ACE 025 2NC SCREW PUMP
ACE 025 2NC 615A SCREW PUMP
ACE 025 2NC60 SCREW PUMP
ACE 025 2TAA6 SCREW PUMP
ACE 025 L1 IVBO SCREW PUMP
ACE 025 L1 IVBP SCREW PUMP
ACE 025 L2 NTBO SCREW PUMP
ACE 025 L2 NTBP SCREW PUMP
ACE 025 L2 NVBP SCREW PUMP
ACE 025 L3 NQBP SCREW PUMP
ACE 025 L3 NTBP SCREW PUMP
ACE 025 L3 NVBP SCREW PUMP
ACE 025 N NTBO SCREW PUMP
ACE 025 N1 IRBP SCREW PUMP
ACE 025 N1 IVBO SCREW PUMP
ACE 025 N1 IVBP SCREW PUMP
ACE 025 N2 NTBO SCREW PUMP
ACE 025 N2 NTBP SCREW PUMP
ACE 038K2 NTBP主機燃油泵IMO配件螺桿機械密封
ACF 125N5 IVBP大型船用IMO螺桿泵ACE025N3NVBPACE 032 K2 NTBO SCREW PUMP
ACE 032 K3 NTBP SCREW PUMP
ACE 032 L1 IRBP SCREW PUMP
ACE 032 L1 ITBO SCREW PUMP
ACE 032 L1 IVBO SCREW PUMP
ACE 032 L1 IVBP SCREW PUMP
ACE 032 L1 NVBP SCREW PUMP
ACE 032 L2 NTBO SCREW PUMP
ACE 032 L2 NTBP SCREW PUMP
ACE 032 L2 NVBO SCREW PUMP
ACE 032 L2 NVBP SCREW PUMP
ACE 032 L3 NQBP SCREW PUMP
ACE 032 L3 NTBP SCREW PUMP
ACE 032 L3 NVBP SCREW PUMP
ACE 032 N1 IRBO SCREW PUMP
機械密封ACE 032 N2 NTBP瑞典IMO螺桿泵ACE 032 N1 IRBP SCREW PUMP
ACE 032 N1 IVBO SCREW PUMP
ACE 032 N1 IVBP SCREW PUMP
ACE 032 N1 NTBO SCREW PUMP
ACE 032 N2 IRBO SCREW PUMP
ACE 032 N2 NTBO SCREW PUMP
ACE 032 N3 NVBP瑞典IMO螺桿泵ace 025配件
ACE 032 N2 NTBP SCREW PUMP
ACE 032 N2 NVBO SCREW PUMP
ACE 032 N2 NVBP SCREW PUMP
ACE 032 N3 NQBP SCREW PUMP
ACE 032 N3 NTBP SCREW PUMP
ACE 032 N3 NVBP SCREW PUMP
ACE 032 NC615 SCREW PUMP
ACE 032 NC615A SCREW PUMP
ACE 038 2 KNC615 SCREW PUMP
ACE 038 2 NC 615 SCREW PUMP
ACE 038 2N2F SCREW PUMP
ACE 038 2NC60 SCREW PUMP
ACE 038 2NC615A SCREW PUMP
ACE 038 D3 NTBP SCREW PUMP
ACE 038 K1 IRBP SCREW PUMP
ACE 038 K1 IVBO SCREW PUMP
ACE 038 K1 IVBP SCREW PUMP
ACE 038 K2 NTBO SCREW PUMP
ACE 038 K2 NTBO A368 SCREW PUMP
ACE 038 K2 NTBO T4E SCREW PUMP
ACE 038 K2 NTBP SCREW PUMP
ACE 038 K2 NVBO SCREW PUMP
ACE 038 K3 IVBP SCREW PUMP
ACE 038 K3 NQBP SCREW PUMP
ACE 038 K3 NTBO SCREW PUMP
ACE 038 K3 NTBP SCREW PUMP
ACE 038 K3 NVBP SCREW PUMP
ACE 038 L2 NTBP SCREW PUMP
ACE 038 L3 NTBP SCREW PUMP
ACE 038 N1 IRBO SCREW PUMP
ACE 038 N1 IRBP SCREW PUMP
ACE 038 N1 ITBO SCREW PUMP
ACE 038 N1 ITBP SCREW PUMP
ACE 038 N1 IVBO SCREW PUMP
ACE 038 N1 IVBP SCREW PUMP
ACE 038 N2 8443 SCREW PUMP
ACE 038 N2 NTBO SCREW PUMP
ACE 038 N2 NTBP SCREW PUMP
ACE 038 N2 NVBO SCREW PUMP
ACE 038 N2 NVBP SCREW PUMP
ACE 038 N3 NQBP SCREW PUMP
ACE 038 N3 NTBP SCREW PUMP
ACE 038 N3 NVBP SCREW PUMP
ACE 038 N3 NVBP T4S Q101 SCREW PUMP
ACF 080 3N3F SCREW PUMP
ACF 080 3N4F SCREW PUMP
ACF 080 K4 IRBO SCREW PUMP
ACF 080 K4 IRBP SCREW PUMP
ACF 080 K4 NVBP SCREW PUMP
ACF 080 N4 IRBO SCREW PUMP
ACF 080 N4 IRBP SCREW PUMP
ACF 090 3N3F SCREW PUMP
ACF 090 K4 IRBO SCREW PUMP
ACF 090 K4 IRBP SCREW PUMP
ACE 032N2 NTBP船用分油機供油泵配件包G053
機械密封ACE 032 N2 NTBP瑞典IMO螺桿泵ACF 090 K5 IRBO SCREW PUMP
ACF 090 N4 IRBO SCREW PUMP
ACF 090 N4 IRBP SCREW PUMP
ACF 100 3N2F SCREW PUMP
ACF 100 3N3F SCREW PUMP
ACF 100 3N4F SCREW PUMP
ACF 100 K4 IRBO SCREW PUMP
ACF 100 K4 IRBP SCREW PUMP
ACF 100 N4 IRBO SCREW PUMP
ACF 100 N4 IRBP SCREW PUMP
ACF 100 N5 IVBP SCREW PUMP
ACF 110 3LN3F SCREW PUMP
ACF 110 3N3F SCREW PUMP
ACF 110 L4 IRBP SCREW PUMP
ACF 110 N4 IRBO SCREW PUMP
ACF 110 N4 IRBP SCREW PUMP
ACF 110 N5 NVBP SCREW PUMP
ACF 125 3LN2F SCREW PUMP
ACF 125 3LN3F SCREW PUMP
ACF 125 3LN4F SCREW PUMP
ACF 125 3N3F SCREW PUMP
ACE 032 N3 NVBP瑞典IMO螺桿泵ace 025配件ACF 125 L4 IRBO SCREW PUMP
ACF 125 L4 IVBO SCREW PUMP
ACF 125 L5 IVBP SCREW PUMP
ACF 125 N4 IRBO SCREW PUMP
ACG 045 2N2F SCREW PUMP
ACG 045 2N2F60 SCREW PUMP
ACG 045 2N2F60A SCREW PUMP
ACG 045 2N3F SCREW PUMP
ACG 045 K NTBP SCREW PUMP
ACG 045 K5 IVBO SCREW PUMP
ACG 045 K5 IVBP SCREW PUMP
ACG 045 K5 NTBP SCREW PUMP
ACG 045 K6 IVBO SCREW PUMP
ACG 045 K6 IVBP SCREW PUMP
ACG 045 K6 NTBO SCREW PUMP
ACG 045 K6 NTBP SCREW PUMP
ACG 045 K7 NTBP SCREW PUMP
ACG 045 K7 NVBP SCREW PUMP
ACG 045 N2F SCREW PUMP
ACG 045 N3 IVBP SCREW PUMP
ACG 045 N5 IVBO SCREW PUMP
ACG 045 N5 IVBP SCREW PUMP
ACG 045 N5 NTBP SCREW PUMP
ACG 045 N5 NVBP SCREW PUMP
ACG 045 N6 ITBP SCREW PUMP
ACG 045 N6 IVBO SCREW PUMP
ACG 045 N6 IVBP SCREW PUMP
ACG 045 N6 NTBO SCREW PUMP
ACG 045 N6 NTBP SCREW PUMP
ACG 045 N6 NVBO SCREW PUMP
ACG 045 N7 NTBP SCREW PUMP
ACG 045 NTBP SCREW PUMP
ACG 052 2N2F SCREW PUMP
ACG 052 2N2F60 SCREW PUMP
ACG 052 2N2F615A SCREW PUMP
ACG 052 2N3F SCREW PUMP
ACG 052 2N4 SCREW PUMP
ACG 052 2NF SCREW PUMP
ACG 052 K5 IVBO SCREW PUMP
ACG 052 K5 NTBP SCREW PUMP
ACG 052 K6 IVBO SCREW PUMP
ACG 052 K6 NTBP SCREW PUMP
ACG 052 K7 NTBP SCREW PUMP
ACG 052 K7 NVBP SCREW PUMP
ACG 052 N2F SCREW PUMP
ACG 052 N3 IVBP SCREW PUMP
ACG 052 N5 IVBO SCREW PUMP
ACG 052 N5 IVBP SCREW PUMP
ACG 052 N5 NTBP SCREW PUMP
ACG 052 N5 NVBO SCREW PUMP
ACG 052 N5 NVBP SCREW PUMP
ACG 052 N6 IVBO SCREW PUMP
ACG 052 N6 IVBP SCREW PUMP
ACG 052 N6 NTBP SCREW PUMP
ACG 052 N7 NTBP SCREW PUMP
ACG 052 N7 NVBP SCREW PUMP
ACG 060 2N2F SCREW PUMP
ACG 060 2N3F SCREW PUMP
ACG 060 K6 NTBP SCREW PUMP
ACG 060 K7 NTBP SCREW PUMP
ACG 060 N3 IVBO SCREW PUMP
ACG 060 N5 IVB0 SCREW PUMP
ACG 060 N5 IVBO SCREW PUMP
ACG 060 N5 IVBP SCREW PUMP
ACG 060 N5 NVBP SCREW PUMP
ACG 060 N6 IVBO SCREW PUMP
ACG 060 N6 IVBP SCREW PUMP
ACG 060 N6 NTBP SCREW PUMP
ACG 060 N7 NTBP SCREW PUMP
ACG 070 2 N3F SCREW PUMP
ACG 070 2N2F SCREW PUMP
ACG 070 2N2F 60 SCREW PUMP
ACG 070 2N2F 615A SCREW PUMP
ACG 070 2N3F SCREW PUMP
ACG 070 2N3F 615A SCREW PUMP
ACG 070 2NF SCREW PUMP
ACG 070 K5 IVBO SCREW PUMP
ACG 070 K5 NTBP SCREW PUMP
ACG 070 K6 ITBP SCREW PUMP
ACG 070 K6 IVBO SCREW PUMP
ACG 070 K6 IVBP SCREW PUMP
ACG 070 K7 NTBP SCREW PUMP
ACG 070 K7 NVBP SCREW PUMP
ACG 070 N2 IVBO SCREW PUMP
ACG 070 N3 IRBO SCREW PUMP
ACG 070 N5 IVBO SCREW PUMP
ACG 070 N5 IVBP SCREW PUMP
ACE 032N2 NTBP船用分油機供油泵配件包G053
ACP 025 N1 IVBP SCREW PUMP
ACP 025 N1 NVBP SCREW PUMP
ACP 025 N2 NTBP SCREW PUMP
ACP 025 N6 NVBP SCREW PUMP
ACP 032 L1 NVBP SCREW PUMP
ACP 032 L3 NVBP SCREW PUMP
ACP 032 N1 NRBP SCREW PUMP
ACP 032 N1 NVBP SCREW PUMP
ACP 032 N2 NTBP SCREW PUMP
ACP 032 N3 NVBP SCREW PUMP
ACP 038 K1 NVBP SCREW PUMP
ACP 038 K3 NVBP SCREW PUMP
ACP 038 N1 NRBP SCREW PUMP
ACP 038 N1 NVBP SCREW PUMP
ACP 038 N3 NVBP SCREW PUMP
ACP 045 K2 NVBP SCREW PUMP
ACP 045 K5 NVBP SCREW PUMP
ACP 045 K7 NVBP SCREW PUMP
ACP 045 N7 NVBP SCREW PUMP
ACP 052 K7 NVBP SCREW PUMP
ACP 060 K7 NVBP SCREW PUMPACG045 K7 NVBP ACG045 K7 NVFP ACG045 K7 NVFE
ACG045 K7 NTBP ACG045 K7 NTFP ACG045 K7 NTFE
ACG052系列三螺桿泵
ACG052 K7 NVBP ACG052 K7 NVFP ACG052 K7 NVFE
ACG052 K7 NTBP ACG052K7 NTFP ACG052 K7 NTFE
ACG060系列三螺桿泵
ACG060 K7 NVBP ACG060 K7 NVFP ACG060 K7 NVFE
ACG060 K7 NTBP ACG060K7 NTFP ACG060 K7 NTFE
ACG070系列三螺桿泵
ACG070 K7 NVBP ACG070 K7 NVFP ACG070 K7 NVFE
ACG070 K7 NTBP ACG070K7 NTFP ACG070 K7 NTFE
ACG045系列三螺桿泵
ACG045 N7 NVBP ACG045 N7 NVFP ACG045 N7 NVFE
ACG045 N7 NTBP ACG045 N7 NTFP ACG045 N7 NTFE
ACG052 N7 NVBP ACG052 N7 NVFP ACG052 N7 NVFE
ACG052 N7 NTBP ACG052N7 NTFP ACG052 N7 NTFE
ACG060 N7 NVBP ACG060 N7 NVFP ACG060 N7 NVFE
ACG060 N7 NTBP ACG060N7 NTFP ACG060 N7 NTFE
ACG070 N7 NVBP ACG070 N7 NVFP ACG070 N7 NVFE
ACG070 N7 NTBP ACG070N7 NTFP ACG070 N7 NTFE
ACE025系列三螺桿泵
ACE025 N3 NVBP三螺桿泵 ACE025 N3 NTBP三螺桿泵 ACE025 N3 NQBP三螺桿泵
ACE025 L3 NVBP三螺桿泵 ACE025 L3 NTBP三螺桿泵 ACE025 L3 NQBP三螺桿泵
ACE025 K3 NVBP三螺桿泵 ACE025 K3 NTBP三螺桿泵 ACE025 K3 NQBP三螺桿泵
ACE032系列三螺桿泵
ACE032 N3 NVBP三螺桿泵 ACE032 N3 NTBP三螺桿泵 ACE032 N3 NQBP三螺桿泵
ACE032 L3 NVBP三螺桿泵 ACE032 L3 NTBP三螺桿泵 ACE032 L3 NQBP三螺桿泵
ACE032 K3 NVBP三螺桿泵 ACE032 K3 NTBP三螺桿泵 ACE032 K3 NQBP三螺桿泵
ACE038系列三螺桿泵
ACE038 N3 NVBP三螺桿泵 ACE038 N3 NTBP三螺桿泵 ACE038 N3 NQBP三螺桿泵
ACE038 L3 NVBP三螺桿泵 ACE038 L3 NTBP三螺桿泵 ACE038 L3 NQBP三螺桿泵
ACE038 K3 NVBP三螺桿泵 ACE038 K3 NTBP三螺桿泵 ACE038 K3 NQBP三螺桿泵
ACE038 K2 NVBP三螺桿泵 ACE038 K2 NTBP三螺桿泵 ACE038 K2 NQBP三螺桿泵
ACE025N3NVBP ACE025N3NTBP ACE025N3NQBP
ACE025L3NVBP ACE025L3NTBP ACE025L3NQBP
ACE025K3NVBP ACE025K3NTBP ACE025K3NQBP
ACE032系列三螺桿泵
ACE032N3NVBP ACE032N3NTBP ACE032N3NQBP
ACE032L3NVBP ACE032L3NTBP ACE032L3NQBP
ACE032K3NVBP ACE032K3NTBP ACE032K3NQBP
ACE038N3NVBP ACE038N3NTBP ACE038N3NQBP
ACE038L3NVBP ACE038L3NTBP ACE038L3NQBP
ACE038K3NVBP ACE038K3NTBP ACE038K3NQBP
ACG045系列三螺桿泵
ACG045K7NVBP ACG045K7NVFP ACG045K7NVFE
ACG045K7NTBP ACG045K7NTFP ACG045K7NTFE
ACG045N7NVBP ACG045N7NVFP ACG045N7NVFE
ACG045N7NTBP ACG045N7NTFP ACG045N7NTFE
ACG052系列三螺桿泵
ACG052K7NVBP ACG052K7NVFP ACG052K7NVFE
ACG052K7NTBP ACG052K7NTFP ACG052K7NTFE
ACG052N7NVBP ACG052N7NVFP ACG052N7NVFE
ACG052N7NTBP ACG052N7NTFP ACG052N7NTFE
ACG060K7NVBP ACG060K7NVFP ACG060K7NVFE
ACG060K7NTBP ACG060K7NTFP ACG060K7NTFECOlfax渠下IMO泵, 德國歷史*悠久的泵公司,有140余年的歷史,2004銷售額為1.6億歐元。
產品包括離心泵、軸流泵、單/雙/三螺桿泵、磁力驅動泵等。產品主要運用于船用、石油/天
然氣、能源、環境保護、化工/化纖及其它廣泛的工業應用領域。
IMO多種泵產品:
1:三螺桿泵
2:燃油輸送泵
3:單螺桿泵
4:旋轉式泵
5:蠕動泵
6:離心泵
ACG 045K7 NTBP
ACE 038K3 NTBP
ACG052K7NVBP IMO燃油服務泵瑞典COlfax螺桿泵
ACE 038K2 NTBP
ACE025L1IVBP
ACD025系列三螺桿泵
ACD025 N6 NVBP ACD025 N6 NTBP
ACD025 L6 NVBP ACD025 L6 NTBP
ACD025 N6 IVBP ACD025 N6 ITBP
ACD025 L6 IVBP ACD025 L6 ITBP
IMO AB燃油輸送泵ACG 070N7 NTBP
IMO AB/燃油服務泵ACG 052N7 NTBP
ACE025N3NVBP、ACE025L3NVBP、ACE025N3NTBP、ACE025L3NTBP瑞典IMO螺桿泵
ACE032N3NVBP、ACE032L3NVBP、ACE032N3NTBP、ACE032L3NTBP瑞典IMO螺桿泵
ACE038N3NVBP、ACE038L3NVBP、ACE038N3NTBP、ACE038L3NTBP瑞典IMO螺桿泵
ACG045N7NVBP、ACG045K7NVBP、ACG045N7NTBP、ACG045K7NTBP瑞典IMO螺桿泵
ACG052N7NVBP、ACG052K7NVBP、ACG052N7NTBP、ACG052K7NTBP瑞典IMO螺桿泵
ACG060N7NVBP、ACG060K7NVBP、ACG060N7NTBP、ACG060K7NTBP瑞典IMO螺桿泵
ACG070N7NVBP、ACG070K7NVBP、ACG070N7NTBP、ACG070K7NTBP瑞典IMO螺桿泵
ACF090K5IVBP、ACF090N5IVBP、ACF090K4IRBO、ACF090N4IRBO瑞典IMO螺桿泵
ACF100K5IVBP、ACF100N5IVBP、ACF100K4IRBO、ACF100N4IRBO瑞典IMO螺桿泵
ACF125K5IVBP、ACF125N5IVBP、ACF125K4IRBO、ACF125N4IRBO螺桿泵
AKP-SNH80ER46E8.9W69
PUMP
ABQ 180 3L W4M SCREW PUMP
ACD 025 2LN6F SCREW PUMP
ACD 025 2N6F SCREW PUMP
ACD 025 L6 IRBO SCREW PUMP
ACD 025 L6 IRBP SCREW PUMP
ACD 025 L6 ITBP SCREW PUMP
ACD 025 L6 IVBP SCREW PUMP
ACD 025 L6 NTBP SCREW PUMP
ACD 025 L6 NVBP SCREW PUMP
ACD 025 N1 NRBP SCREW PUMP
ACD 025 N6 IRBP SCREW PUMP
ACD 025 N6 IVBP SCREW PUMP
ACD 025 N6 NVBO SCREW PUMP
ACD 025 N6 NVBP SCREW PUMP
ACE 025 2L N6F SCREW PUMP
ACE 025 2L2 SCREW PUMP
KG70KY/7.5F4螺桿泵IMO AB公司
ACE 025 2NC SCREW PUMP
ACE 025 2NC 615A SCREW PUMP
ACE 025 2NC60 SCREW PUMP
ACE 038K2 NTBP主機燃油泵IMO配件螺桿機械密封