RFMH over-temperature sprinklers, thermal automatic over-temperature sprinklers, ZPC127 dust control sprinkler ..

RFMH over-temperature sprinklers, thermal automatic over-temperature sprinklers, ZPC127 sprinkler dust control, dust suppression spray device RFMH over-temperature sprinklers, general use with integrated protection devices, installed in accordance with the requirements of the position require watering, do not work, Thermal probe can withstand a certain pressure, blocked the control loop, the spool blocking the water hole. Thermal fusible alloy probe consists of a variety of high-purity rare elements from melting in specific proportions. Upon detection of the ambient temperature is above 50 degrees or fire, the thermal fusible alloy melting temperature sensing probes, pressure relief cone plug from the hole, the pressure release hole flowing out and releasing the pressure, because the pilot aperture is small, upper pressure spool few calls to zero, pressure spool automatically pushed above the spool from the outlet, inlet pressure of the water flowing out from the outlet directly sprayed onto the fire surface, automatic anti-fire. Thermal probe must use a special product. In order to ensure reliable operation of 50 ± 2 ℃. Automatic valve works: Under normal circumstances, the moment began to water, and the outlet pressure is zero, the top pressure is zero, the spool up first by the water, the outlet water flow out, while water flows into the spool through the pilot hole the upper end of this time, if the self-check valve is closed, and when the blocking pressure relief cone plug hole, the pressure is equal on both sides of the spool up and down; the spool valve body below the top cross-sectional area larger than the cross-sectional area, when the pressure is equal on both sides of the spool above the force larger than the force area below the spool is greater than the pressure above the pressure below automatically pushed below the spool, block outlet. 3) Technical parameters 1, the automatic valve Nominal by 3/4 ", working pressure 3MP; 2, nozzle flow: when the water pressure is 3MP, 25L / S; 3, range: 9.6 m, fire range: 20 square meters 4, Extinguishing temperature: 50 ± 2 ℃; I Main: sensors and safety monitoring system, safety testing equipment, life-saving protection and other safety equipment, explosion-proof lighting, explosion-proof switch, mining electric bell, mine with a junction box, high and low voltage electrical, mining accessories Chun Wei and other Jining Mining Equipment Co., Ltd. is located in Jining City, Shandong Province, Tang Industrial Park, new and old customers call to plant inspection Sales Hotline: 18553720525 landline: 0537-2200525 QQ: 1815250022