The surprised sawn, polypropylene, ball valve. Is reliable design

One could, of course, look at pictures on the internet, but I decided that in this case personal experience is priceless. Took 20-tap fixed clamp and I began to saw hacksaw, to get cleaner cut. I did not expect the result is nothing unusual, but not far from it.

sawn crane

Crane had a complex, thoughtful, technical solution, it is especially well seen on the photo below.

Description

The molded body was two segment capsule in which the compressed two plastic sleeves placed itself ball rod yaw balloon had three rubber O-ring. Two of them are isolated capsule with the ball, and the third seal the stem in the main body.

So, in a housing hiding mechanism consisting of two (positive) nylon cuffs, three rubber rings, rod, sphere and the two capsule segments in total 9 separate parts.

Reliability

This mechanism, of course, reliableBecause further provides sealing assembly in the internal capsule, and thermal expansion of the material are compensated balanced parts.

That is, they are not monolithic, allowing them to expand and contract in a technically prescribed limits,

this is, in its turn, It helps to avoid the stress and material destruction.

This I had an opinion, but what do you think of this issue?

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