A42Y spring full open closed safety valve suitable for equipment and piping work temperature are less than 300 air, petroleum gas and liquid medium. As overpressure protection device. When the equipment and pipeline internal pressure exceeds the limit from the noise, the valve automatically opens, then the whole amount of emissions, when the pressure is reduced to the specified value, the valve automatically closes to ensure the safe operation of equipment and piping.
Note: parameters are for reference only, or are not full. Valve can be used in accordance with the requirements of different pressure, material, diameter, drive, etc.. Specific please contact or online advisory contact.
1, spring full swing safety valve has a simple structure, good sealing performance, open pressure accurately, large discharge capacity, back seat pressure is small, easy to adjust and so on.
2, the nozzle type seat: the seat for a cut of the nozzle seat that reaches the speed of sound at the outlet of the steam flowing through the valve, discharge coefficient, surfacing Stellite seating, erosion abrasion resistance, long service life.
3, thermo elastic disc valve: valve design for the thermal elastic structure, the use of its micro deformation in the medium pressure, improve the sealing ability to overcome the pressure of the safety valve near the pressure under the pressure of the former discharge phenomenon. Valve sealing surface using advanced laser quenching technology, improve the hardness, wear resistance, resistance to resistance.
4, adjusting nut: by adjusting the adjusting nut, adjust the spring compression, so that the valve can be very convenient, very quickly to obtain accurate setting pressure.
5, back pressure adjustment sleeve: adjusting the valve back pressure of the auxiliary mechanism, through the adjustment of the back pressure adjustment, can get the appropriate back seat pressure. Up time, so that the valve back pressure to reduce. Down time, so that the valve back pressure to improve.
1. The closed high-pressure safety valve with full spring opening must be installed vertically and directly on the joint of the container or pipeline. The inside diameter of the joint shall not be less than the inlet diameter of the safety valve.
2. The outlet of the safety valve must be equipped with appropriate expansion joints to prevent thermal expansion of the discharge pipe from bringing undue thermal stress to the safety valve. The inner diameter of the discharge pipe should be larger than the diameter of the valve outlet, and the length should be as short as possible to avoid turning. Discharge pipe and expansion joint weight should not be applied to the safety valve, should be fixed to the building. The distance between the center line of the discharge pipe and the center line of the valve body is as short as possible. Each safety valve shall be individually piped.
3. The outlet of the silencer shall have sufficient area to prevent back pressure from affecting the discharge capacity of the valve.
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