What is the heating system for?

Any heat­ing device oper­at­ing under pres­sure and at high tem­per­a­tures auto­mat­i­cal­ly falls into the cat­e­go­ry of high-risk devices. The main trou­bles that can hap­pen to the boil­er and dis­able it, up to the most seri­ous con­se­quences, occur from excess pres­sure in the sys­tem. After exceed­ing a cer­tain, crit­i­cal val­ue, the boil­er may be destroyed, the heat car­ri­er may leak, the build­ing may be flood­ed, or a fire in the boil­er room may occur. There­fore, the tech­no­log­i­cal para­me­ters of the heat point require con­trol and auto­mat­ed col­lec­tion of excess atmos­pheres out­side the instal­la­tion.

To cope with this task is the voca­tion of a com­bined device called the “heat­ing boil­er safe­ty sys­tem”.

Fully staffed security team


Safety of the heating system: the urgency of the problem

All heat­ing net­works are equipped with an expan­sion tank, which is filled with air and plays the role of a kind of pres­sure damper to mit­i­gate drops. Any liq­uids are incom­press­ible sub­stances, while gas­es and air are per­fect­ly com­press­ible in vol­ume up to hun­dreds of times under the action of exter­nal forces.

There­fore, when the coolant expands / con­tracts from tem­per­a­ture changes, pipelines and boil­er equip­ment are pro­tect­ed by gas com­pres­sion dur­ing the oper­a­tion of the expan­sion tank.

Damper tank in assembled form

There­fore, peo­ple who are “not in the know” nat­u­ral­ly have ques­tions about the rel­e­vance of acquir­ing an addi­tion­al and expen­sive device, like a heat­ing secu­ri­ty sys­tem. Its pur­pose is to work in emer­gency mode when the ther­mal equip­ment goes beyond the nom­i­nal modes.

That is, a tank is a mat­ter of course, a cer­tain func­tion is assigned to it, which can be called reg­u­la­to­ry, and an emer­gency sys­tem will pro­tect all parts of the heat­ing unit in the event of an emer­gency.

Safety group in the heating system: types and features

By and large, the safe­ty group in the heat­ing sys­tem con­sists of three devices, unit­ed by a com­mon pipe — “col­lec­tor” and con­sists of:

  1. Pres­sure gauge. Indi­cates the amount of pres­sure in the sys­tem and helps to con­trol the full­ness of the pipelines when set­ting up the net­work. When assem­bling the device your­self, it is rec­om­mend­ed to pur­chase a pres­sure gauge with a mea­sure­ment lim­it of 4–4.5 atmos­pheres, as the stan­dard val­ue in the heat­ing main of a pri­vate house rarely goes beyond 3 atm. The pecu­liar­i­ty of point­er instru­ments is that the accu­ra­cy of the read­ings is guar­an­teed when work­ing with­in the sec­ond or third quar­ters of the scale.

Pressure gauges for heating systems

  1. Air vent. Serves for removal of air dur­ing fill­ing of a cop­per and pipes by the heat car­ri­er at the first start, ser­vice and in the course of work. An addi­tion­al task is to release the steam formed dur­ing the over­heat­ing of the boil­er. Inter­nal­ly, the device is a bit like a con­ven­tion­al gaso­line car­bu­re­tor — the float has a mechan­i­cal con­nec­tion with a valve that is open when there is no water.
  2. Relief valve. A spring-valve mech­a­nism set to a cer­tain val­ue, which serves for emer­gency dis­charge of steam, water or steam-water mix­ture dur­ing increased boil­ing in the boil­er.

It turns out that in the absence of pro­tec­tion and boil­ing water in the tank, the result­ing steam would press on the walls of the ves­sels until it found a way out. Typ­i­cal­ly, such a process is explo­sive in nature and is accom­pa­nied by tan­gi­ble mate­r­i­al dam­age.

Features of installing a heating security system

The instal­la­tion of a heat­ing secu­ri­ty sys­tem does not con­tain any secret nuances — it is enough to fol­low the instal­la­tion instruc­tions, which briefly read:

  • This device should be the first of all on the sup­ply pipeline.
  • The max­i­mum dis­tance from the out­let must not exceed 1.5 meters.
  • Shut-off valves must not be installed to cut off the device.

Well done installation

Tips & Tricks.

Dur­ing nor­mal oper­a­tion, the expan­sion tank may become defec­tive, so the excess will be dis­charged through the emer­gency valve. In order to avoid flood­ing, it is rec­om­mend­ed to put on a drain pipe on its branch pipe, the sec­ond edge of which must be brought into the sew­er.


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