Safety valve for the compressor with his own hands

Air compressor from auto parts

Fundamentally different design in the air compressor, which is collected on the basis of a ZIL compressor and a free-standing engine. This is a more powerful piece of equipment that can also be used to connect a pneumatic tool. Very noisy unit.

Compressor unit layout drawing: 1 Compressor from ZIL-130; 2 Frame from angle; 3 Safety valve; 4 Standard pressure gauge; 5 Transfer case; 6 Three-phase electric motor (1 kW, 1380 rpm); 7 Starting box (from washing machine); 8 Condenser battery (working capacity 2530 uF, starting 70100 uF); 9 Receiver (from an oxygen tank or silencer KrAZ); 10 V-belt gear (rpm reduction 1: 3); 11 stop button; 12 engine start button; 13 button for short-term starting capacitor battery activation; 14 discharge valve fitting; 15 aluminum tubes Ø 6 mm; 16 outlet valves; 17 inlet valves; 18 wheels (4 pcs.); 19 transverse stiffener; 20 tie rod (M10 4 pcs.); 21 drains with plug

Connection of a three-phase motor to a single-phase system: a Delta; b Star

An example of self-assembly of an air compressor from new parts and assemblies you can see in the video.

Basic varieties

Reverse valve systems depending on their design can be:

safety, valve, compressor
  • direct type;
  • angular;
  • spring loaded;
  • ball valves;
  • installed by means of flanges;
  • flap valves;
  • assembled by soldering;
  • made to fit the split.

Check valve of direct type for high pressure stations

The material of manufacture can also vary, depending on the media with which such a device will be in contact during operation. In particular, it can be both metal alloys of various types, as well as plastic.

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Depending on the type of shut-off element used, check valves can be:

  • with shut-off element made in the form of a flat valve;
  • ball valves;
  • diaphragm type;
  • petal-shaped;
  • with gravity grid.

The last three types are used for installation in ventilation systems. Among check and safety valves installed on compressors, ball-type devices are the most popular, since they are less critical with regard to contaminants present in the working environment.

Check valves with cone (a), flat (b) and spherical (c) check elements

Among the most advanced valve systems are electromagnetic-type devices, in which the movement of the valve is not controlled by a spring, but by a solenoid. Meanwhile, due to the rather high cost and not too high reliability, such devices are not very popular, yielding to cheaper and time-tested spring counterparts.

Crankshaft device

The crankshaft in this case is connected with the crankcase. The outlet channel is of small diameter. Cylinders on the ZIL-130 compressor are installed on the sides. It should also be noted that there are two pads on the bottom side of the modification. The shaft is fixed on the clamp. The fact that the guides of this compressor are installed on the left side deserves additional attention. If the shaft is short-circuited, experts recommend that the entire supercharger be examined.

The crankcase is also checked, since it usually collects all the debris from the processed oil. For proper operation of the system the pressure inside the block is tested. It is also necessary to immediately clean all channels from the crankcase. This can be done with the help of an ordinary ramrod. In this case, the seat is pre-lubricated. If the shaft is deformed, it must be replaced immediately. The for parts of ZIL-130 are quite reasonable. The tip of the part is welded on by hand.

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The main varieties

Check valve systems, depending on their design can be:

  • direct type;
  • angular;
  • spring loaded
  • ball valves;
  • mounted by means of flanges;
  • flap;
  • solder-mounted;
  • bifurcated;.made under bifurcation.

Check valve of direct type for high pressure stations

safety, valve, compressor

The material of manufacture may also differ, depending on the media with which such a device will be in contact during operation. In particular, it can be both metal alloys of various types, and plastic.

Depending on the type of shut-off element used, check valves can be:

Compressor Safety Valve Setting. A Principled Approach

  • with a locking element made in the form of a flat valve;
  • ball-type;
  • diaphragm;
  • petals;
  • with gravity grid.

The last three types are used in ventilation systems. Among check and safety valves installed on compressors, ball-type devices are the most popular, because they are less critical to contaminants present in the working environment.

Check valves with cone (a), flat (b) and spherical (c) shut-off elements

Among the most modern valve systems are electromagnetic type devices in which the movement of the valve is not controlled by a spring, but by a solenoid. Meanwhile because of the sufficiently high cost and not too great reliability of such devices do not enjoy high popularity, yielding cheaper and time-tested spring counterparts.

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