Basic materials:
- refrigerator compressor;
- 2 tees with internal thread;
- 2 fittings per hose;
- barrel;
- pressure gauge with adapter for the diameter of the tees;
- tap;
- plywood;
- hose;
- fumlenta;
- clamps.
When assembling the pump, you can use components for 1/4 or 3/8 inch threads. You will also need several corner pieces, bolts and nuts.
Converting a compressor into a vacuum pump
We cut the compressor tubes, leaving them 3-5 cm long.
A platform is cut out of plywood to accommodate the compressor.
It can be varnished to protect it from dirt and moisture.
To carry the pump, it is worth welding a handle in the form of a frame. Its base is made from corners, and the posts and crossbar are made from any available rolled metal. The corners are drilled and screwed to the plywood from below.
A compressor is also attached to the base.
At the next stage of assembly, you need to connect the tees together using a barrel. Before this, the threads are sealed with fume tape. A pressure gauge is screwed into one of the vertical outlets of the tees through an adapter. A tap is installed at the adjacent exit.
To fix the tees on the plywood base, you need to make a fastening. To do this, 2 rings are cut out of the pipe, to which studs are welded. There is a hole in the rings for tightening screws. The result is clamps that operate on the principle of a clamp. They are screwed into plywood, and tees are already fixed into them.
Next, fittings are installed on the side open outlets of the tees. One of them is connected by a hose to the air intake of the compressor. The connection is sealed with clamps.
A hose with a suitable adapter is installed on the second fitting to solve the required problem.
If, for example, it is necessary to stabilize wood with a polymer, then the tube must be fixed to the metal lid of the jar with an inserted fitting.
Then the polymer is poured into the jar, the tool with a wooden handle is placed and it is closed. After turning on, the pump will draw air from the container, and the composition will penetrate into the empty pores of the wood. Before turning off the compressor, open the valve slowly to release the vacuum.
