(Pudong Hoge pressure measuring hose) pressure welding head: Besides the above fusion welding head, resistance welding, friction welding, diffusion welding, ultrasonic welding, cold pressure welding and welding are collectively called pressure welding, of which resistance welding and friction welding are due to their The faculties of the rate have now been trusted in lots of departments. Installation method of snap joints (valves and joints)
However , as a result of usage of lap joints, the assembly work really is easy, the preparation work before welding is simple, and the component shrinkage is small, therefore it is still used in some statically loaded building structures and thin plate storage tank structures. Threaded pipe fittings are pipe fittings with threads.
1] Saw off seamless steel pipes of appropriate size. The vertical angle tolerance of the end face of the pipe and the axis should not be higher than 0. five into a crack of 0. 245. The nozzle must certanly be polished flat, with surface thorns and uneven surfaces. When bending a steel pipe, the straight line length from the end face of the pipe to the bent part ought to be higher than twice the length of the nut. (2) Apply lubricating oil to the threads of the joint human body and clamping sleeve, and apply evenly (do not stay glued to the tapered surface of the clamping sleeve joint), after which tighten the nut over and over yourself, so your lubricant is evenly put on the thread of the nut (3) Place the nut and sleeve on the seamless steel pipe. The direction of the sleeve can't be reversed. Insert the pipe in to the main human anatomy of the joint (the pipe must certanly be inserted into the end) and tighten the nut (4). Make use of a one-hand wrench to tighten the nut evenly and forcefully to the torque surge point. (5) After achieving the pressure point, tighten the nut 1/2 turn. When tightening the nut, take care not to turn the steel pipe. (6) Reserve pre-installation margin (pre-installation isn't needed for double ferrule joints). The ferrule can not be embedded in the pipe, which causes the pipe to bear tensile stress. Eliminate the pre-tightening nut, check perhaps the steel pipe has obvious protrusions at the front end of the ferrule, and has wrapped leading end of the ferrule by a lot more than 50%. The ferrule can rotate slightly, but can't move axially (7) The installation is completed. Tighten the nut to the torque fluctuation point, after which tighten about 1/4 turn. The installation is complete
In some cases where in actuality the '' ring is sealed against the finish face or outer diameter, the causes of leakage are the following: '' ring is aging or deformed to cause leakage; '' ring is not assembled properly, so the two planes are not even Or the '' -shaped ring is cut to cause leakage; the '' -shaped ring just isn't compacted, and the quantity of elastic deformation is insufficient to cause leakage; the '' -shaped ring notch groove is too deep to cause leakage. 3. Installation precautions for high-pressure hose joints: () The hose ought not to be bent exceptionally during movement or at rest, nor would it be bent at the root, at least it must be bent at a multiple of its diameter; Do not pull too tightly, and should be relatively loose; () Try to avoid the torsional deformation of the hose; () The hose ought to be as far away as you are able to from the warmth radiating member, and heat insulation board must be worn; Long-term friction, etc .; () If the hose's own weight causes exorbitant deformation, there ought to be a support.
[Heating classroom] You need to know,
If the pressure exceeds, the Pudong Hoge pressure measuring hose must be vented / argon inside the pipe at the same time; () When the wall thickness of the pipe is>, the outer circle should slice the groove and leave a gap at the alternative port; when the pipe wall thickness isn't Cut the groove and leave a gap at the butt; () The axis of the pipe must coincide if the butt is aligned, the amount of misalignment is less than% of the wall thickness, and the deflection rate is less than:; Installation of the pipe clamp: () The gasket of the pipe clamp is usually directly or through angle The bracket is welded to the structural part, and the bracket is fixed with expansion bolts on the concrete floor or wall side; () When installing the pipe clamp, pay attention to leveling, that is, the installation surface are at the same height; () The spacing of the pipe clamp: when the pipe diameter is Approx. Meters; Approx. Meters for pipe diameter; Approx. Meters for pipe diameter, but at right angles, a pipe clamp must certanly be used on each side. If you will find bubbles, pores or mechanical damage in the outer rubber layer, the skeleton layer will be exposed, causing corrosion of the skeleton layer, reducing the compressive strength of the hose, directly affecting the service life of the hose assembly, and even accidents being used. For that reason attention must certanly be paid to the appearance quality of the hose, and the look defects that affect the performance of the hose assembly ought to be eradicated. Therefore , nearly all users pay attention to the maintenance of high-pressure ball valves, rather than waiting for problems everytime, and then think of solutions, which will be not really a long-term plan. Only by making time for the problem from the main cause is the key.
The snap coupling is widely applicable to these five points. They may be trusted in chemical industry, manufacturing and scientific experiments. Even though this joint is small and difficult to find when lost, it's very of good use.
The snap fittings have the advantages of simple structure (series snap kits in the figure below), easy to use, with no importance of welding. However , if it is used, if it's improperly operated, it's going to often cause considerable losses. degaulle pool Specially when using medium and questionable hydraulic systems, if improper operation, it's going to frequently cause leakage. The bond of the sleeve-type pipe joint requires safe and correct operation.
The shape of the loose sleeve flange resembles the flat welded flange with a neck. The huge difference between the two is that: one is that the inner wall of the loose flange surface features a transition arc, and the other is that the inner diameter of the loose flange is sufficient to allow for the flange with overlapping edges. Turn through the short. The loose sleeve flange is sleeved on the exterior of the pipe and doesn't require welding.
The Pudong Hogg pressure measuring hose standard can be consulted / should be noted: teeth is employed in the specification! 2. The teeth are constructed of inch taper threads, and the tooth angle is usually used in sealing. It's mainly utilized in Europe and the Commonwealth. In fact , japan standard also adopts the British standard, in fact also uses the British thread. It belongs to the Wyeth thread family. 2. When using metal standard parts, do you always lock the nuts at a set speed? If you're a first-time user or do not know the stainless steel standard parts product process, you ought to consult with your supplier about the relevant faculties of stainless. In most cases, slowing the locking speed can help reduce (or even avoid) the opportunity of locking.
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