Materials (edit)
The plastic clamp is used where flexibility is needed, and the loads are at an average level. Direct sunlight is harmful to this material. Thermal range - from -10 to + 60 degrees. But near critical temperature points, reliability is not guaranteed. Stainless steel structures are strong, relatively ductile and can withstand significant stress.
The exact parameters are determined by the type of metal, its thickness and the format of the lock. Since even the best steel can corrode, the use of galvanized materials is recommended. As for copper clamps, these are usually power single-bolt models. Strictly speaking, the main structural material is steel anyway, and copper is present only in the surface layer.
What it is?
It is very useful to start the story about clamps by reflecting their essence. Many people understand it in a simplified way, simply as a "way to fix something." Such devices appeared about half a century ago - and immediately replaced traditional welding joints. They turned out to be much more practical and more convenient, installation takes much less time than when manipulating welding machines. For clamps, GOST 24137-80 applies, which refers to the parts connecting pipelines, as well as GOST 28191-89, which describes clamping devices for hoses; both standards regulate dimensions and design features.
Installation features
The number of clamps to be installed can be calculated both according to the drawing and "by eye" directly on the spot. Special signs are left in the designated places. Holes are drilled exactly according to the marking, which must correspond to the fasteners used. The clamps are first fixed to the support and only then to the object being held. Fixation is carried out strictly by the method that is structurally optimal for a particular clamping unit.
Worm gear clamps are mainly used to seal pneumatic and hydraulic lines. The structure initially includes a screw or bolt for tightening. In combination with a special tape, the hardware makes up a stepless plane. It will allow you to evenly tighten the pipe and seal the joints.
As for the plumbing products, they are tightened using hex nuts and bolts. A plastic clamp for plumbing, although inferior in strength to a steel analogue, is cheaper and is optimally combined with a PVC pipe. A metal clamp with one mounting socket is only suitable for certain pipe dimensions. If there are two fasteners, it will be possible to adapt the product to pipes of different sizes. Plumbing fasteners after installation in the "ears" are usually tightened with keys.
The following video explains how to securely fasten the clamp.