MD-L 型密封为双作用活塞密封（图 1），配有丁腈橡胶 (NBR) 密封圈，在两侧配有热塑性聚酯弹性体 (TPC) 抗挤出挡圈，结合了聚甲醛 (POM) 导向环。导向环和抗挤出挡圈采用分体式设计以便于安装。MD-L 型密封适用于压力达到 250 bar (3625 psi) 的中载应用，并提供公制尺寸产品。某些尺寸适用于符合 ISO 6547:1981 标准的密封沟槽。
导向环、抗挤胶圈和密封集成在活塞密封总成中的紧凑型活塞密封件
MD-L 密封件为紧凑型双动式活塞密封件。 它们带有丁腈橡胶密封环，两侧带有聚酰胺弹性体抗挤胶圈和聚缩醛导向环。 抗挤胶圈能降低间隙挤出的可能性，从而改善高压性能。 这种整体式导向环不需要额外的外部活塞导向环。 防挤出和导向环为剖分式，便于安装。
- 紧凑型，整体式密封解决方案
- 适合中低载荷应用
- 可提供公制尺寸
- 装配某些尺寸符合 ISO 6547 的密封轴承座
- 如果无库存，可由 SKF SEAL JET 加工系统制造替代品
| 制造商型号 | 圆柱孔径 D[mm] | 活塞槽直径 d[mm] | 轴承座宽度 L[mm] | 最大运行压力 max.[bar] | 最大运行温度 T6max.[°C] |
|---|---|---|---|---|---|
| MD 25X15X12.4-L | 25 | 15 | 12.4 | 250 | 120 |
| MD 30X21X13.5-L | 30 | 21 | 13.5 | 250 | 120 |
| MD 32X22X12.5-L | 32 | 22 | 12.5 | 250 | 120 |
| MD 32X22X15.5-L | 32 | 22 | 15.5 | 250 | 120 |
| MD 32X24X10-L | 32 | 24 | 10 | 250 | 120 |
| MD 32X24X15.5-L | 32 | 24 | 15.5 | 250 | 120 |
| MD 35X25X15.5-L | 35 | 25 | 15.5 | 250 | 120 |
| MD 35X25X16.4-L | 35 | 25 | 16.4 | 250 | 120 |
| MD 40X24X18.4-L | 40 | 24 | 18.4 | 250 | 120 |
| MD 40X30X12.4-L | 40 | 30 | 12.4 | 250 | 120 |
| MD 40X30X12.5-L | 40 | 30 | 12.5 | 250 | 120 |
| MD 40X30X16.4-L | 40 | 30 | 16.4 | 250 | 120 |
| MD 40X32X15.5-L | 40 | 32 | 15.5 | 250 | 120 |
| MD 45X29X18.4-L | 45 | 29 | 18.4 | 250 | 120 |
| MD 45X31X15.5-L | 45 | 31 | 15.5 | 250 | 120 |
| MD 45X37X15.5-L | 45 | 37 | 15.5 | 250 | 120 |
| MD 50X34X18.4-L | 50 | 34 | 18.4 | 250 | 120 |
| MD 50X35X20-L | 50 | 35 | 20 | 250 | 120 |
| MD 50X38X20.5-L | 50 | 38 | 20.5 | 250 | 120 |
| MD 50X40X12.5-L | 50 | 40 | 12.5 | 250 | 120 |
| MD 55X39X18.4-L | 55 | 39 | 18.4 | 250 | 120 |
| MD 55X39X20.5-L | 55 | 39 | 20.5 | 250 | 120 |
| MD 55X45X12.5-L | 55 | 45 | 12.5 | 250 | 120 |
| MD 56X40X20.5-L | 56 | 40 | 20.5 | 250 | 120 |
| MD 60X44X18.4-L | 60 | 44 | 18.4 | 250 | 120 |
| MD 60X48X20.5-L | 60 | 48 | 20.5 | 250 | 120 |
| MD 60X50X17-L | 60 | 50 | 17 | 250 | 120 |
| MD 63X47X18.4-L | 63 | 47 | 18.4 | 250 | 120 |
| MD 63X47X19.4-L | 63 | 47 | 19.4 | 250 | 120 |
| MD 63X47X20.5-L | 63 | 47 | 20.5 | 250 | 120 |
| MD 63X48X20-L | 63 | 48 | 20 | 250 | 120 |
| MD 63X51X20.5-L | 63 | 51 | 20.5 | 250 | 120 |
| MD 63X53X12.5-L | 63 | 53 | 12.5 | 250 | 120 |
| MD 65X49X20.5-L | 65 | 49 | 20.5 | 250 | 120 |
| MD 65X50X18.4-L | 65 | 50 | 18.4 | 250 | 120 |
| MD 70X50X22.4-L | 70 | 50 | 22.4 | 250 | 120 |
| MD 70X54X20.5-L | 70 | 54 | 20.5 | 250 | 120 |
| MD 70X55X20-L | 70 | 55 | 20 | 250 | 120 |
| MD 70X58X20.5-L | 70 | 58 | 20.5 | 250 | 120 |
| MD 75X55X22.4-L | 75 | 55 | 22.4 | 250 | 120 |
| MD 80X60X22.4-L | 80 | 60 | 22.4 | 250 | 120 |
| MD 80X60X25-L | 80 | 60 | 25 | 250 | 120 |
| MD 80X62X22.5-L | 80 | 62 | 22.5 | 250 | 120 |
| MD 80X65X20-L | 80 | 65 | 20 | 250 | 120 |
| MD 80X66X22.5-L | 80 | 66 | 22.5 | 250 | 120 |
| MD 85X65X22.4-L | 85 | 65 | 22.4 | 250 | 120 |
| MD 90X70X22.4-L | 90 | 70 | 22.4 | 250 | 120 |
| MD 90X72X22.5-L | 90 | 72 | 22.5 | 250 | 120 |
| MD 90X75X20-L | 90 | 75 | 20 | 250 | 120 |
| MD 95X75X22.4-L | 95 | 75 | 22.4 | 250 | 120 |
| MD 100X75X22.4-L | 100 | 75 | 22.4 | 250 | 120 |
| MD 100X80X25-L | 100 | 80 | 25 | 250 | 120 |
| MD 100X82X22.5-L | 100 | 82 | 22.5 | 250 | 120 |
| MD 100X85X20-L | 100 | 85 | 20 | 250 | 120 |
| MD 100X86X22.5-L | 100 | 86 | 22.5 | 250 | 120 |
| MD 105X80X22.4-L | 105 | 80 | 22.4 | 250 | 120 |
| MD 105X92.5X14-L | 105 | 92.5 | 14 | 250 | 120 |
| MD 110X85X22.4-L | 110 | 85 | 22.4 | 250 | 120 |
| MD 110X85X25.4-L | 110 | 85 | 25.4 | 250 | 120 |
| MD 110X92X22.5-L | 110 | 92 | 22.5 | 250 | 120 |
| MD 110X95X20-L | 110 | 95 | 20 | 250 | 120 |
| MD 110X96X22.5-L | 110 | 96 | 22.5 | 250 | 120 |
| MD 115X90X22.4-L | 115 | 90 | 22.4 | 250 | 120 |
| MD 115X97X22.5-L | 115 | 97 | 22.5 | 250 | 120 |
| MD 120X95X22.4-L | 120 | 95 | 22.4 | 250 | 120 |
| MD 125X100X25.4-L | 125 | 100 | 25.4 | 250 | 120 |
| MD 125X100X32-L | 125 | 100 | 32 | 250 | 120 |
| MD 125X103X26.5-L | 125 | 103 | 26.5 | 250 | 120 |
| MD 125X105X25-L | 125 | 105 | 25 | 250 | 120 |
| MD 125X105X25.4-L | 125 | 105 | 25.4 | 250 | 120 |
| MD 125X108X26.5-L | 125 | 108 | 26.5 | 250 | 120 |
| MD 130X105X25.4-L | 130 | 105 | 25.4 | 250 | 120 |
| MD 130X105X25.4X9.5-L | 130 | 105 | 25.4 | 250 | 120 |
| MD 135X110X25.4-L | 135 | 110 | 25.4 | 250 | 120 |
| MD 135X110X25.4X9.5-L | 135 | 110 | 25.4 | 250 | 120 |
| MD 140X115X25.4-L | 140 | 115 | 25.4 | 250 | 120 |
| MD 140X115X25.4X9.5-L | 140 | 115 | 25.4 | 250 | 120 |
| MD 140X118X26.5-L | 140 | 118 | 26.5 | 250 | 120 |
| MD 140X120X25-L | 140 | 120 | 25 | 250 | 120 |
| MD 145X120X25.4-L | 145 | 120 | 25.4 | 250 | 120 |
| MD 145X120X25.4X9.5-L | 145 | 120 | 25.4 | 250 | 120 |
| MD 150X125X25.4-L | 150 | 125 | 25.4 | 250 | 120 |
| MD 150X125X25.4X9.5-L | 150 | 125 | 25.4 | 250 | 120 |
| MD 150X128X26.5-L | 150 | 128 | 26.5 | 250 | 120 |
| MD 155X130X25.4-L | 155 | 130 | 25.4 | 250 | 120 |
| MD 160X130X25.4-L | 160 | 130 | 25.4 | 250 | 120 |
| MD 160X135X25.4X9.5-L | 160 | 135 | 25.4 | 250 | 120 |
| MD 160X140X25-L | 160 | 140 | 25 | 250 | 120 |
| MD 165X140X25.4X9.5-L | 165 | 140 | 25.4 | 250 | 120 |
| MD 170X140X25.4-L | 170 | 140 | 25.4 | 250 | 120 |
| MD 170X145X25.4X12.7-L | 170 | 145 | 25.4 | 250 | 120 |
| MD 175X150X25.4X12.7-L | 175 | 150 | 25.4 | 250 | 120 |
| MD 180X150X35.4-L | 180 | 150 | 35.4 | 250 | 120 |
| MD 180X155X25.4X12.7-L | 180 | 155 | 25.4 | 250 | 120 |
| MD 190X165X25.4X12.7-L | 190 | 165 | 25.4 | 250 | 120 |
| MD 195X170X25.4X12.7-L | 195 | 170 | 25.4 | 250 | 120 |
| MD 200X170X35.4-L | 200 | 170 | 35.4 | 250 | 120 |
| MD 200X170X36-L | 200 | 170 | 36 | 250 | 120 |
| MD 200X175X25.4X12.7-L | 200 | 175 | 25.4 | 250 | 120 |
| MD 200X180X31.5-L | 200 | 180 | 31.5 | 250 | 120 |
| MD 210X185X25.4X12.7-L | 210 | 185 | 25.4 | 250 | 120 |
| MD 220X190X35.4-L | 220 | 190 | 35.4 | 250 | 120 |
| MD 220X195X25.4X12.7-L | 220 | 195 | 25.4 | 250 | 120 |
| MD 230X205X25.4X12.7-L | 230 | 205 | 25.4 | 250 | 120 |
| MD 240X215X25.4X12.7-L | 240 | 215 | 25.4 | 250 | 120 |
| MD 250X220X35.4-L | 250 | 220 | 35.4 | 250 | 120 |
| MD 250X225X25.4X12.7-L | 250 | 225 | 25.4 | 250 | 120 |
| MD 280X250X35.4X9.5-L | 280 | 250 | 35.4 | 250 | 120 |
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