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Yash Hitech Systems
Oil Burner Nozzles
Oil Pumps for Burners
Burner Controllers,
Photocells, U. V. Cells
Ignition Transformers & Accessories
Ignition Electrodes
Gas Filters & Pressure Switches
Gas Regulators & Servo Motors
Gas Valves & Multibloc Valves
Customised Gas Trains &
Gas Flow Meters
Combustion Analysers &
Leak Detectors
Safety Release &
Slam Shutoff Valves
Valve Proving Systems
Spares for Monobloc Burners
Additional Accessories
The Heart of Heating
Safety Release & Slam Shutoff Valves
Dungs safety release valves : These safety release valves are used to protect the systems from over pressures in the gas trains in the event of sudden overpressures due to closure of solenoid valves

So that the when the line is charged with over pressure than the set pressure, it will allow the release of gas from the system and it is recommended to leave the vent line from this valve safely outside of the building. These are available in sizes of only 1" and the pressure setting is available from 20 mbar to 1000 mbar using different set of springs as per requirements. The maximum allowable inlet pressure of the gas is 1 bar. Popular model is FRSBV 1010.
APQ safety release valves : These safety release valves can be used for the same purpose as mentioned above. These are made by APQ Spain. These are available in sizes of ½" and 1" and setting pressure range is 18 mbar to 8 bar with different set of springs as per customer's requirements.
Giuliani Anello Slam Shutoff Valves : These are slam shutoff valves means that in case of over pressure in the system, this valve will shut the gas in the pipeline and prevent the down stream system from the damage due to over pressure.

These are available in sizes from ¾" to 6" and with maximum allowable Inlet pressure of gas as 6 bar and shut off setting pressure range between 80 to 550 mbar.
APQ slam shut off valve : These are available in two different versions : one which can be directly fitted below the APQ gas regulator and other which can be seperately mounted on the gas train pipe line.

These are available for both over pressure and under pressure cut off. These are available in sizes from 1" to 3" in threaded/flanged versions. These can be set to shut off at pressures from 10 mbar to 4 bar.
APQ Tower gauge : APQ tower gauge is available in the size of ½" NPT threads. This is having multifunctions like facility for connecting the pressure gauge, impulse lines from regulator and slam shut off valve.

Also the push button cock for this tower gauge is bistable, allowing you to see the pressure in the gauge while setting the pressure on the regulator. Also the special feature is that we can rotate the pressure gauge after fitting the same by 360 degrees without leakage of gas or loosening of pressure gauge. Max allowable pressure is 25 bar.
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