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PYI INC PSS轴密封
两个2英寸无包密封系统轴密封 使我们能够消除旧的传统轴密封件，这些密封件不仅仅是绳索，而且油脂挤满了和压缩，但漏水的泄漏却不断缓慢。
PSS型A轴密封
对于3/4“至3-3/4” （20mm至95mm） 轴直径
产品规格： PSS类型A密封尺寸下载： 安装说明
A型PSS轴密封件是机械面密封。密封表面是在旋转不锈钢转子的平坦表面和固定碳法兰之间产生的。固定的碳法兰用软管夹连接到波纹管的前侧，波纹管的后端安装在船尾管上，并用软管夹固定。不锈钢转子安装在碳法兰前的轴上。不锈钢转子在用固定的螺钉将转子固定到轴上之前会压缩波纹管。这种压缩（预载）在不锈钢转子和碳法兰的两个平坦面之间保持恒定的接触，从而使PSS可以补偿由于推力螺旋桨推力而导致的可变前后运动。此外，碳法兰对轴直径过度填充，使其可以在轴上“漂浮”，从而补偿大多数未对准和振动问题。不锈钢转子被两个O形圈密封到轴上，嵌入了项圈的孔中。这些O形圈用轴和不锈钢转子旋转，并且在操作过程中不会磨损。
温度限制： 5°F至225°F（-15°C至107°C）
压力极限： 15 psi（1 bar）
轴RPM极限： 10,000 rpm
碳石墨： 被绑定到4 HLB（0.000044“公差）
316S /氮50： 面对9-12 RA
波纹管材料： 模制氮 - PVC
它是如何工作的？
1 .两个氮气O形圈将不锈钢转子密封到轴上，不会磨损。
2. 主组螺钉和备用固定螺钉（2套）用于将不锈钢转子固定到轴上。
3. 在碳定子的两个平面和不锈钢转子之间创建密封。
4. 水被馈入PSS轴密封件，以冷却/润滑高速容器上的密封面。
5. 固定的碳定子连接到硝酸卷曲龙，该硝基卷曲的附着在船尾管（轴原木）上。
成分
转子
转子由316升不锈钢制成，并在精确的CNC车床上加工至9-12RA的饰面。它使用以90度角定位的2对固定螺钉将其固定在轴上，以实现最大的保持功率。不锈钢转子在操作的最初几个小时内进一步抛光了碳定子。
碳定子
高密度，树脂浸渍的碳定子是由先进的复合材料制成的，该复合材料首先混合和模制，然后在压力下形成。然后将空白零件烘烤，加工，并将其拉开至4个氦灯带的测量平坦度（在其整个额定表面上以0.000044”的变化为准）。PSS轴中使用的碳复合级等级具有最大的工作温度与500°F（+260°C）的500°F（+260°C），如果密封在短时间内干燥，与唇部密封或塑料脸部密封不同。此外，碳的高密度大大增加了寿命和耐磨性结果，在相同的原始组件上，有几种商业船只记录了40,000多个发动机小时的40,000（超过4-1/2年的连续操作）。
波纹管
A型密封件上的波纹管是用氮化物模制的。硝化物以其对石油产品的良好耐药性而闻名。此外，它提供了本应用所需的耐用性，强度和弹性的最佳组合。
软管倒钩
对于高速容器（12节以上），需要向PSS轴密封液置入正供水，以润滑和冷却密封面。请查看PSS轴密封安装说明，以获取有关供水点的更多信息。在大多数情况下，没有带有轴轴的慢速船（少于12节）不需要阳性的水进料，并且可以简单地排出。理想情况下，通风线将在水线上方至少2-3英尺处运行，并尽可能靠近中心线。这将确保排气软管永远不会低于水线，即使具有巨大的脚跟。 PSS轴密封安装说明有更多有关发泄密封的详细信息。
|
部分 ＃ |
轴直径。 （A） |
船尾管直径。 （b） |
未压缩长度（C） |
大约压缩 |
转子直径（D） |
袖口长度（E） |
|
3/4" |
1-1/4“至1-3/8” |
6.875" |
3/4" |
2.375" |
1.5" |
|
|
3/4" |
1-1/2“至1-5/8” |
6.875" |
3/4" |
2.375" |
1.5" |
|
|
3/4" |
1-3/4“至1-7/8” |
6.75" |
3/4" |
2.375" |
1.5" |
|
|
3/4" |
2“至2-1/8” |
6.875" |
3/4" |
2.375" |
1.5" |
|
|
3/4" |
2-1/4“至2-3/8” |
6.75" |
3/4" |
2.375" |
1.5" |
|
|
3/4" |
2-1/2“至2-5/8” |
7.375" |
3/4" |
2.375" |
1.5" |
|
|
7/8" |
1-1/4“至1-3/8” |
6.875" |
3/4" |
2.375" |
1.5" |
|
|
7/8" |
1-1/2“至1-5/8” |
6.875" |
3/4" |
2.375" |
1.5" |
|
|
7/8" |
1-3/4“至1-7/8” |
6.75" |
3/4" |
2.375" |
1.5" |
|
|
7/8" |
2“至2-1/8” |
6.875" |
3/4" |
2.375" |
1.5" |
|
|
7/8" |
2-1/4“至2-3/8” |
6.75" |
3/4" |
2.375" |
1.5" |
|
|
7/8" |
2-1/2“至2-5/8” |
7.375" |
3/4" |
2.375" |
1.5" |
|
|
1" |
1-1/4“至1-3/8” |
6.875" |
3/4" |
2.375" |
1.5" |
|
|
1" |
1-1/2“至1-5/8” |
6.875" |
3/4" |
2.375" |
1.5" |
|
|
1" |
1-3/4“至1-7/8” |
6.75" |
3/4" |
2.375" |
1.5" |
|
|
1" |
2“至2-1/8” |
6.875" |
3/4" |
2.375" |
1.5" |
|
|
1" |
2-1/4“至2-3/8” |
6.75" |
3/4" |
2.375" |
1.5" |
|
|
1" |
2-1/2“至2-5/8” |
7.375" |
3/4" |
2.375" |
1.5" |
|
|
1-1/8" |
1-1/4“至1-3/8” |
6.875" |
3/4" |
2.375" |
1.5" |
|
|
1-1/8" |
1-5/8“至1-3/8” |
6.875" |
3/4" |
2.375" |
1.5" |
|
|
1-1/8" |
1-3/4“至1-7/8” |
6.75" |
3/4" |
2.375" |
1.5" |
|
|
1-1/8" |
2“至2-1/8” |
6.875" |
3/4" |
2.375" |
1.5" |
|
|
1-1/8" |
2-1/4“至2-3/8” |
6.75" |
3/4" |
2.375" |
1.5" |
|
|
1-1/8" |
2-1/2“至2-5/8” |
7.375" |
3/4" |
2.375" |
1.5" |
|
|
1-1/4" |
1-3/4“至1-7/8” |
7.5" |
3/4" |
2.875" |
1.5" |
|
|
1-1/4" |
2“至2-1/8” |
7.375" |
3/4" |
2.875" |
1.5" |
|
|
1-1/4" |
2-1/4“至2-3/8” |
7.5" |
3/4" |
2.875" |
1.5" |
|
|
1-1/4" |
2-1/2“至2-5/8” |
7.375" |
3/4" |
2.875" |
1.5" |
|
|
1-1/4" |
2-3/4“至2-7/8” |
8.875" |
3/4" |
2.875" |
2" |
|
|
1-1/4" |
3“至3-1/8” |
8.875" |
3/4" |
2.875" |
2" |
|
|
1-1/4" |
3-1/4“至3-3/8” |
9.0625" |
3/4" |
2.875" |
2" |
|
|
1-1/4" |
3-1/2“至3-5/8” |
8.875" |
3/4" |
2.875" |
2" |
|
|
1-3/8" |
1-3/4“至1-7/8” |
7.5" |
3/4" |
2.875" |
1.5" |
|
|
1-3/8" |
2“至2-1/8” |
7.375" |
3/4" |
2.875" |
1.5" |
|
|
1-3/8" |
2-1/4“至2-3/8” |
7.5" |
3/4" |
2.875" |
1.5" |
|
|
1-3/8" |
2-1/2“至2-5/8” |
7.375" |
3/4" |
2.875" |
1.5" |
|
|
1-3/8" |
2-3/4“至2-7/8” |
8.875" |
3/4" |
2.875" |
2" |
|
|
1-3/8" |
3“至3-1/8” |
8.875" |
3/4" |
2.875" |
2" |
|
|
1-3/8" |
3-1/4“至3-3/8” |
9.063" |
3/4" |
2.875" |
2" |
|
|
1-3/8" |
3-1/2“至3-5/8” |
8.875" |
3/4" |
2.875" |
2" |
|
|
1-1/2" |
2“至2-1/8” |
9.155" |
1" |
3.75" |
2" |
|
|
1-1/2" |
2-1/4“至2-3/8” |
9.155" |
1" |
3.75" |
2" |
|
|
1-1/2" |
2-1/2“至2-5/8” |
9.03" |
1" |
3.75" |
2" |
|
|
1-1/2" |
2-3/4“至2-7/8” |
9.2175" |
1" |
3.75" |
2" |
|
|
1-1/2" |
3“至3-1/8” |
9.03" |
1" |
3.75" |
2" |
|
|
1-1/2" |
3-1/4“至3-3/8” |
9.2175" |
1" |
3.75" |
2" |
|
|
1-1/2" |
3-1/2“至3-5/8” |
9.03" |
1" |
3.75" |
2" |
|
|
1-1/2" |
3-3/4“至3-7/8” |
9.405" |
1" |
3.75" |
2" |
|
|
1-1/2" |
4“至4-1/8” |
9.405" |
1" |
3.75" |
2" |
|
|
1-3/4" |
2-1/4“至2-3/8” |
9.155" |
1" |
3.75" |
2" |
|
|
1-3/4" |
2-1/2“至2-5/8” |
9.03" |
1" |
3.75" |
2" |
|
|
1-3/4" |
2-3/4“至2-7/8” |
9.2175" |
1" |
3.75" |
2" |
|
|
1-3/4" |
3“至3-1/8” |
9.03" |
1" |
3.75" |
2" |
|
|
1-3/4" |
3-1/4“至3-3/8” |
9.2175" |
1" |
3.75" |
2" |
|
|
1-3/4" |
3-1/2“至3-5/8” |
9.03" |
1" |
3.75" |
2" |
|
|
1-3/4" |
3-3/4“至3-7/8” |
9.405" |
1" |
3.75" |
2" |
|
|
1-3/4" |
4“至4-1/8” |
9.405" |
1" |
3.75" |
2" |
|
|
2" |
2-1/2“至2-5/8” |
9.03" |
1" |
3.75" |
2" |
|
|
2" |
2-3/4“至2-7/8” |
9.2175" |
1" |
3.75" |
2" |
|
|
2" |
3“至3-1/8” |
9.03" |
1" |
3.75" |
2" |
|
|
2" |
3-1/4“至3-3/8” |
9.2175" |
1" |
3.75" |
2" |
|
|
2" |
3-1/2“至3-5/8” |
9.03" |
1" |
3.75" |
2" |
|
|
2" |
3-3/4“至3-7/8” |
9.405" |
1" |
3.75" |
2" |
|
|
2" |
4“至4-1/8” |
9.405" |
1" |
3.75" |
2" |
|
|
2-1/4" |
3-1/4“至3-3/8” |
9.8125" |
1" |
4.2" |
2" |
|
|
2-1/4" |
3-1/2“至3-5/8” |
9.625" |
1" |
4.2" |
2" |
|
|
2-1/4" |
3-3/4“至3-7/8” |
9.625" |
1" |
4.2" |
2" |
|
|
2-1/4" |
4“至4-1/8” |
9.625" |
1" |
4.2" |
2" |
|
|
2-1/4" |
4-1/4“至4-3/8” |
10.25" |
1" |
4.2" |
2.5" |
|
|
2-1/4" |
4-1/2“至4-5/8” |
10.25" |
1" |
4.2" |
2.5" |
|
|
2-1/4" |
4-3/4“至4-7/8” |
10.25" |
1" |
4.2" |
2.5" |
|
|
2-1/4" |
5“至5-1/8” |
10.25" |
1" |
4.2" |
2.5" |
|
|
2-1/2" |
3-1/4“至3-3/8” |
9.625" |
1" |
4.2" |
2" |
|
|
2-1/2" |
3-1/2“至3-5/8” |
9.625" |
1" |
4.2" |
2" |
|
|
2-1/2" |
3-3/4“至3-7/8” |
9.625" |
1" |
4.2" |
2" |
|
|
2-1/2" |
4“至4-1/8” |
9.625" |
1" |
4.2" |
2" |
|
|
2-1/2" |
4-1/4“至4-3/8” |
10.25" |
1" |
4.2" |
2.5" |
|
|
2-1/2" |
4-1/2“至4-5/8” |
10.25" |
1" |
4.2" |
2.5" |
|
|
2-1/2" |
4-3/4“至4-7/8” |
10.25" |
1" |
4.2" |
2.5" |
|
|
2-1/2" |
5“至5-1/8” |
10.25" |
1" |
4.2" |
2.5" |
|
|
2-3/4" |
4“至4-1/8” |
10.3125" |
1" |
5" |
2.5" |
|
|
2-3/4" |
4-1/4“至4-3/8” |
10.3125" |
1" |
5" |
2.5" |
|
|
2-3/4" |
4-1/2“至4-5/8” |
10.125" |
1" |
5" |
2.5" |
|
|
2-3/4" |
4-3/4“至4-7/8” |
10.3125" |
1" |
5" |
2.5" |
|
|
2-3/4" |
5“至5-1/8” |
10.125" |
1" |
5" |
2.5" |
|
|
2-3/4" |
5-1/4“至5-3/8” |
10.25" |
1" |
5" |
2.5" |
|
|
2-3/4" |
5-1/2“至5-5/8” |
10.25" |
1" |
5" |
2.5" |
|
|
2-3/4" |
5-3/4“至5-7/8” |
10.25" |
1" |
5" |
2.5" |
|
|
2-3/4" |
6“至6-1/8” |
10.25" |
1" |
5" |
2.5" |
|
|
3" |
4“至4-1/8” |
10.3125" |
1" |
5" |
2.5" |
|
|
3" |
4-1/4“至4-3/8” |
10.3125" |
1" |
5" |
2.5" |
|
|
3" |
4-1/2“至4-5/8” |
10.125" |
1" |
5" |
2.5" |
|
|
3" |
4-3/4“至4-7/8” |
10.3125" |
1" |
5" |
2.5" |
|
|
3" |
5“至5-1/8” |
10.125" |
1" |
5" |
2.5" |
|
|
3" |
5-1/4“至5-3/8” |
10.25" |
1" |
5.25" |
2.5" |
|
|
3" |
5-1/2“至5-5/8” |
10.4375" |
1" |
5" |
2.5" |
|
|
3" |
5-3/4“至5-7/8” |
10.25" |
1" |
5" |
2.5" |
|
|
3" |
6“至6-1/8” |
10.25" |
1" |
5" |
2.5" |
|
|
3-1/4" |
4-1/2“至4-5/8” |
10.8625" |
1" |
6" |
2.5" |
|
|
3-1/4" |
4-3/4“至4-7/8” |
10.8625" |
1" |
6" |
2.5" |
|
|
3-1/4" |
5“至5-1/8” |
10.8625" |
1" |
6" |
2.5" |
|
|
3-1/4" |
5-1/4“至5-3/8” |
10.675" |
1" |
6" |
2.5" |
|
|
3-1/4" |
5-1/2“至5-5/8” |
10.8625" |
1" |
6" |
2.5" |
|
|
3-1/4" |
5-3/4“至5-7/8” |
10.8625" |
1" |
6" |
2.5" |
|
|
3-1/4" |
6“至6-1/8” |
10.675" |
1" |
6" |
2.5" |
|
|
3-1/4" |
6-1/4“至6-3/8” |
11.675" |
1" |
6" |
2" |
|
|
3-1/4" |
6-1/2“至6-5/8” |
11.675" |
1" |
6" |
2" |
|
|
3-1/4" |
6-3/4“至6-7/8” |
11.675" |
1" |
6" |
2" |
|
|
3-1/4" |
7“至7-1/8” |
11.675" |
1" |
6" |
2" |
|
|
3-1/2" |
4-1/2“至4-5/8” |
10.8625" |
1" |
6" |
2.5" |
|
|
3-1/2" |
4-3/4“至4-7/8” |
10.8625" |
1" |
6" |
2.5" |
|
|
3-1/2" |
5“至5-1/8” |
10.8625" |
1" |
6" |
2.5" |
|
|
3-1/2" |
5-1/4“至5-3/8” |
10.675" |
1" |
6" |
2.5" |
|
|
3-1/2" |
5-1/2“至5-5/8” |
10.8625" |
1" |
6" |
2.5" |
|
|
3-1/2" |
5-3/4“至5-7/8” |
10.8625" |
1" |
6" |
2.5" |
|
|
3-1/2" |
6“至6-1/8” |
10.675" |
1" |
6" |
2.5" |
|
|
3-1/2" |
6-1/4“至6-3/8” |
11.675" |
1" |
6" |
2" |
|
|
3-1/2" |
6-1/2“至6-5/8” |
11.675" |
1" |
6" |
2" |
|
|
3-1/2" |
6-3/4“至6-7/8” |
11.675" |
1" |
6" |
2" |
|
|
3-1/2" |
7“至7-1/8” |
11.675" |
1" |
6" |
2" |
|
|
3-5/8" |
4-1/2“至4-5/8” |
10.86" |
1" |
6" |
2.5" |
|
|
3-5/8" |
4-3/4“至4-7/8” |
10.86" |
1" |
6" |
2.5" |
|
|
3-5/8" |
5“至5-1/8” |
10.86" |
1" |
6" |
2.5" |
|
|
3-5/8" |
5-1/4“至5-3/8” |
10.86" |
1" |
6" |
2.5" |
|
|
3-5/8" |
5-1/2“至5-5/8” |
10.86" |
1" |
6" |
2.5" |
|
|
3-5/8" |
5-3/4“至5-7/8” |
10.86" |
1" |
6" |
2.5" |
|
|
3-5/8" |
6“至6-1/8” |
10.675" |
1" |
6" |
2.5" |
|
|
3-5/8" |
6-1/4“至6-3/8” |
11.675" |
1" |
6" |
2" |
|
|
3-5/8" |
6-1/2“至6-5/8” |
11.675" |
1" |
6" |
2" |
|
|
3-5/8" |
6-3/4“至6-7/8” |
11.675" |
1" |
6" |
2" |
|
|
3-5/8" |
7“至7-1/8” |
11.675" |
1" |
6" |
2" |
|
|
3-3/4" |
4-1/2“至4-5/8” |
10.8625" |
1" |
6" |
2.5" |
|
|
3-3/4" |
4-3/4“至4-7/8” |
10.8625" |
1" |
6" |
2.5" |
|
|
3-3/4" |
5“至5-1/8” |
10.8625" |
1" |
6" |
2.5" |
|
|
3-3/4" |
5-1/4“至5-3/8” |
10.675" |
1" |
6" |
2.5" |
|
|
3-3/4" |
5-1/2“至5-5/8” |
10.8625" |
1" |
6" |
2.5" |
|
|
3-3/4" |
5-3/4“至5-7/8” |
10.675" |
1" |
6" |
2.5" |
|
|
3-3/4" |
6“至6-1/8” |
10.675" |
1" |
6" |
2.5" |
|
|
3-3/4" |
6-1/4“至6-3/8” |
11.675" |
1" |
6" |
2" |
|
|
3-3/4" |
6-1/2“至6-5/8” |
11.675" |
1" |
6" |
2" |
|
|
3-3/4" |
6-3/4“至6-7/8” |
11.675" |
1" |
6" |
2" |
|
|
3-3/4" |
7“至7-1/8” |
11.675" |
1" |
6" |
2" |
尖端
这里有一些有用的技巧，以确保您充分利用PSS轴密封。
有关更多有用的提示，请访问我们 常见问题页面.
PSS维护套件
为了确保PSS轴密封的寿命和正常功能，PYI提供了 PSS维护套件 遵循PYI建议的维护时间表。与水线下方的任何橡胶 /有机硅软管一样，必须定期检查PSS波纹管，以确保任何磨损，衰老或化学变质的迹象。 PYI建议每6年更换风箱一次。在bellows更换期间，还建议更换不锈钢转子中的O形环和固定螺钉以及软管夹。 PYI在PSS维护套件中包含所有必要的更换零件。
设置螺钉
为了确保PSS轴密封的寿命和正常功能，PYI提供了 PSS维护套件 遵循PYI建议的维护时间表。与水线下方的任何橡胶或硅软管一样，必须定期检查PSS波纹管是否有任何磨损，衰老或化学变质的迹象。此外，PYI建议每6年更换一次波纹管。在皮革龙更换过程中，还建议更换不锈钢转子中的O形圈和螺钉。 PYI在PSS维护套件中包含所有必要的更换零件。
如果您需要新的螺丝螺丝，可以购买 PSS O形圈套件。这带有2个新的O形圈，5个固定螺钉，一个艾伦扳手，夹具夹克和线锁。
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