Sports and FitnessEquipment

Primus PT-1: instructions and references

Picnics and short stationary hikes are pleasant with their gatherings by the fire. Living fire enchanting, tunes in a philosophical way, helps to forget the bustle of megacities. But for fans of extreme tourism, climbers, gamblers and hunters, fans of river alloys, long walking or bicycle tours, fire is primarily a source of hot food.

For them, the romance and beauty of the flame does not come to the fore, but pragmatic. Therefore, field burners of various types became the usual companions of the tourist. They help quickly and autonomously prepare food in frost, during torrential rains, in high-altitude conditions and complete absence of firewood. Compact and light burners save time and energy for travelers.

Types of burners

Burners on wood. In fact, it's a stove, working on wood. It differs from a fire only in that it consumes fuel more economically, dishes can be put on it, and the fire is protected from precipitation and wind. But at the same time, the minuses are obvious: the furnace is cumbersome, does not solve the problem of lack of firewood, it is difficult to ignite it in winter or in the rain.

Burners on dry alcohol . Simple to operate, cheap, very light. But they give too little flame, which can not be practically regulated. On it you can warm up a can of canned food or a mug of water, but it's hard to cook something more seriously.

Gas burners . At the moment they are experiencing a peak of popularity, they are happily acquired by tourists, summer residents, fishermen. They kindle fires and coals on picnics, they prepare tea and food. There are many types of gas burners: from miniature hand-held to full-fledged plates with a bulky cylinder, which are purchased by motorists for long-term autonomous tours. To their merits carry: convenience in work, simplicity of a design, possibility to regulate intensity of a flame.

Petrol burners (primus) are the main competitors of gas analogs for consumer likes. At one time it seemed that convenient gas burners finally displace gasoline tourist stoves from the market, but travelers and climbers continue to use them, relying on common sense and many years of experience of predecessors.

Historical digression

The first Primus was created in the late nineteenth century by Swede Franz Lindqvist, who called his invention the Latin word Primus (translated as "first"). The name was fixed and eventually became a common name for all such burners. Initially, kerosene served as fuel for the primus stove, but in 1927 the Swedish company Svea patented a gasoline burner that became the progenitor of a myriad of models of gasoline burners.

The advantages of stoves were quickly appreciated not only by housewives, but also by travelers. Gasoline burners became obligatory participants in many great expeditions of the twentieth century: with the Lindkvist Primus Primer the Norwegian Amundsen broke through to the South Pole, the Svea burner helped the first conquerors of Everest to cook, warm up, and warm ice-cold shoes at an eight-thousand-high height.

Primus tourist PT-1: equipment and characteristics

The world is developing rapidly, technological leaps ahead of the opportunities to realize them, but there are things that seem to have frozen in time. For example, the gasoline stove PT-1, practically unchanged constructively, serves several generations of travelers.

The bundle is surprisingly simple. These are: a burner, a funnel for gasoline, a universal wrench, a handle, spare oil seals.

Characteristics:

  • Size - width and length of 132 mm, height 82 mm.
  • Weight - 750 g (minimum 305 g).
  • The power is 1.8-2 kW.
  • The maximum thermal load is 1650 kcal / h.
  • Type of fuel - gasoline "Galosha", automobile gasoline, preferably with a low octane number.
  • The volume of the fuel tank is 120 ml.
  • The burner operating time is 35 minutes at maximum power, 55 minutes at the average.
  • The boiling time of one liter of water is 8 minutes (at an air temperature of 20 ° C).

Design

Although the primus PT-1 has won a rather ominous nickname "the death of a tourist", in fact, when properly operated, it is safe and reliable. The device consists of a burner and a fuel tank, which are installed in a steel box. The burner is fixed to the bottom on a threaded connection. The tank is mounted on the bracket to the side of the burner, it is protected from an open flame by a movable steel screen. On the cover of the box is fixed a universal key, with which you can tighten the union.

Primus type PT-1 is equipped with a device for quick cleaning of the injector by turning the adjusting knob to the "Clean" position. The fuel tank is made of high-quality brass (the thickness of the walls is one and a half millimeters) and has the shape of a cylinder, which is why it has a uniform thermal conductivity and high strength. On the closing cover there is a valve that operates at excess pressure in the reservoir, excluding its structural damage, in particular an explosion.

Operating principle

Primus PT-1 does not have any pumps and operates at excess pressure, which is created in the fuel tank when it is heated. To create an overpressure in the reservoir, the primus needs to be heated, for this purpose the burner is equipped with a bowl in which liquid or dry fuel is ignited .

Under pressure, gasoline is forced out of the tank and fed through thin tubes into the burner, where it turns into steam and lights up. The characteristic noise produced by the operation of the primus stove is caused by intense burning of gasoline vapors, if the flame is large and swaying, then it means that the gasoline itself is not burning, that is, the pressure is insufficient. This often happens in the cold, when more heat is required to warm the tank than in the summer.

Primus PT-1: instructions

The algorithm of operation with a primus stove is simple, you only need to consistently perform all the steps, then there are no problems. Sometimes from the first time it's not okay to light a burner, but do not worry, it's a matter of skill. It is enough to lightly light a couple of times, and the Primus stove PT-1 tourist will become a reliable helper in any conditions.

1. Pour fuel into the tank. The design of the tank does not provide for full filling, so do not try to pour gasoline to the brim.

2. Preheat the burner: to do this, you need to kindle alcohol, gasoline or solid fuel in the bowl.

3. It takes a few minutes to warm up, all this time the Primus cock should be closed, so that the vapor pressure necessary for operation is created in the tank.

4. Open the tap and light the burner, from which gasoline pairs will start to hiss.

5. To extinguish the Primus, it is enough to stop the fuel supply by closing the control valve.

Nuances of operation

Work with a gasoline burner will be more comfortable and safer if you take into account the following nuances:

• Before transporting the primus, you need to completely drain the fuel from the tank, especially it is important to do before transportation on the plane;

• in the Primus stove it is extremely advantageous not to use gasoline with a high octane rating, there are reviews: the Primus PT-1 works most effectively on Galosha gasoline;

• You can not fill kerosene, it does not provide a normal burning and strongly clogs the burner, which has to be painstakingly cleaned;

• before the primus operation, it is necessary to open the reservoir in order to equalize the negative pressure remaining from the previous ignition;

• it is convenient to carry gasoline in plastic bottles: they are reliable, light and take up little space;

• It is desirable to always have a set of spare parts and seals;

• that the primus lasts longer, it should be taken care of: periodically clean out the nozzle, clean after each use, store in a dry place.

Advantages

Primus PT-1 has been an actual and popular source of fire for tourists for more than half a century. If its popularity in the times of the Union can be explained by the scarcity and meager choice of such devices, then in our satisfied and abundant age the consumer chooses primarily based on the merit of the product and the shortcomings of the product. In this regard, the Primus petrol tourist PT-1 gives odds to many new-fired burners, because it has a whole bouquet of advantages:

• Affordable price in the region of 2000 rubles, but it is much cheaper to buy from hands;

• durability: with accurate and correct use, the primus will work for decades, it is easy to repair and clean;

• trouble-free operation and operation under extreme conditions: the PT-1 Primus stove works reliably at extremely low temperatures, at high altitudes, in rains and snowstorms, which compares favorably with those refusing to burn in the cold and wind of gas burners;

• Compact and lightweight;

• Affordable and cheap fuel: gasoline is easy to carry, if necessary, it is much easier to find than gas in cylinders;

• the power of the Primus is 1.5-2 times higher than that of gas burners;

• The petrol stove can be transported in an airplane, gas cylinders are prohibited.

disadvantages

Of course, there are some disadvantages of the Primus stove:

• Beginners sometimes have problems with ignition, but they are usually temporary;

• In case of errors in operation or selection of incorrect fuel, the burner tube system becomes clogged or the adjusting needle sticks to the nozzle;

• long preparation for work;

• Gasoline is more dangerous than solid fuel or gas.

Safety precautions

Even in experienced hands, a device filled with gasoline and working under pressure is dangerous. Therefore, you can not negligently apply to the operation of the primus PT-1. You need to train yourself to the order of work with the burner, be vigilant and do not forget about simple rules:

1. Follow the instructions.

2. Check the tightness of the connections.

3. Tighten the cap securely.

4. Do not light the stove in a close and unventilated room (in a tent, car).

5. Do not operate the burner near materials prone to fire.

6. Do not place on easily flammable surfaces: the bottom of the box is very hot.

7. Ensure that the tank does not overheat. Do not use dishes with a large bottom, since the possibility of contact with the tank is large.

8. If, nevertheless, it has overheated, and the safety valve has worked, do not panic. Of course, the tongue of flame escaping from the petrol tank looks awesome, but it can be covered with a dense cloth or, squeezing the pressure, wait until it goes out by itself.

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