This paper briefly introduces the sealing principle of the screw sealing feed water pump, and deals with its frequent trip problem arising from inadequate pressure difference of seal water.
在对螺旋密封式给水泵的密封原理作简要介绍的基础上，针对其因密封水压差小而导致频繁跳泵的问题进行了讨论。
High-speed tube filling and sealing machine, sticker screw cap machine, cartoning machine, warehousing logistics equipment and relevant form a complete set of production line of high-tech enterprises.
高速软管灌装封尾机、贴膜拧帽机、装盒机、仓储物流设备及相应配套生产线的高科技企业。
Screw cap torque stepless adjustable, with constant torque rotary sealing plastic lid function, without injury cover, tight and reliable seal.
拧盖力矩无级可调，具有恒力矩旋封塑盖功能，且不伤盖，封口严密可靠。
The sealing principle of sealing cavity in single thread twin screw pump is the same as that in double thread twin screw pump.
单头双螺杆泵与双头双螺杆泵密封腔的密封原理相同。
Once the screw turns a circle, the liquid inside the sealing chamber will be pushed forward by a pitch.
螺杆每转一周，密封腔中的液体向前推进一个螺距。
The utility model solves the problems of bad sealing performance, which can cause the waste of work medium and the environmental pollution easily, and short service life for the prior screw.
本方案解决了现有螺丝密封性能差，容易造成工作介质的浪费及环境的污染，且使用寿命短的问题。
Polycarbonate full-face visor complete with peak and safety latch. Supplied with screw fasteners, and a foam sealing strip, the visor can be easily attached and removed from the helmet.
配有安全扣的全面部遮阳面罩，配有螺丝紧固件，以及泡沫密封条，遮阳面罩可以容易地安装在头盔及卸除。
Remove sealing cap from the discharge valve. When using discharge tube, please?screw it onto the outlet of valve, and tighten it.
旋下排液阀的盖子。如使用弯管，请将其套在阀门放料口的外螺纹上，并用手拧紧；
The barrel, plunger and standing valve of the pump were designed, improving the barrel's force conditions and reinforcing the screw thread's sealing performance and tensile strength.
该泵对泵筒、柱塞、固定阀做了设计，改善了泵筒受力状况，提高了螺纹的密封性能和抗拉强度。
It is clear that screw-sleeve type screw seal not only can obtain sealability as screw-shaft type screw seal, but also can improve sealing effect.
分析表明，螺套式螺旋密封不仅能获得与螺杆式螺旋密封相同的封液能力，而且还可以改善密封效果。
The invention relates to a screw-type steel wire hose clamp used in sealing fixation of flexible pipes and rigid pipes in pipeline connection.
本发明涉及一种拧式钢丝喉箍，用于管道连接中软管和硬管密封固定。
When using valve nozzle for easy drain, please insert nozzle into the sealing cap and screw the cap onto the discharge valve with gasket and tighten it.
如使用阀门接管，请将其连同垫圈套在螺纹盖中，拧回放料阀并拧紧。
The packing seal device of the screw shaft can automatically press the sealing packing, reliably eliminate wearing clearances of the packing in time and has the advantage of stable sealability.
该艉轴填料密封装置能自动压紧密封填料，及时可靠地消除填料磨损间隙，具有稳定密封装置密封性能的优点。
The packing seal device of the screw shaft can automatically press the sealing packing, reliably eliminate wearing clearances of the packing in time and has the advantage of stable sealability.
该艉轴填料密封装置能自动压紧密封填料，及时可靠地消除填料磨损间隙，具有稳定密封装置密封性能的优点。
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