Safety valves are widely used in various industries of the national economy, as the boilers and pressure vessels and piping safety accessories, in accordance with the national "Pressure Vessel Safety Technology Supervision" requirement, "safety valve should check at least once a year in general." However, the current petrochemical and chemical companies means continuously run for more than a year, even two or three years to achieve parity once a year is difficult; some equipment belonging to the continuous operation, no maintenance period; in addition, is running on the device The valve failure need not stop to remove and replace it is difficult to achieve. To this end, we developed a safety valve fast switching device that can achieve non-stop fast valve replacement purposes. Safety valve should note the following: (1) there is gas inside the container when liquid two-phase material safety valve should be installed in the gas phase portion. (2) safety valve for venting flammable liquid outlet valve of the tank should be connected to the accident. When the discharge of the material is a high temperature fuel valve manufacturers, their receiving container should have the appropriate protective equipment. (3) general safety valve may be vented, the vent should be above the fire site operator 1 meter (m) or more and not toward 15 meters (m) or less, emitting sparks and high temperature equipment location. Indoor equipment, safety containers should lead roof vent and the roof above two meters (m) or more. (4) When the safety valve inlet valve brands have cut off valve, cut off valve should be in a normally open state, and to be seals Shandong valve, to avoid mistakes. Safety valve should note the following: (1) there is gas inside the container when liquid two-phase material safety valve should be installed in the gas phase portion. (2) safety valve for venting flammable liquid outlet valve of the tank should be connected to the accident. When the discharge of the material is a high temperature fuel, its receiving container should have the appropriate protective equipment. (3) general safety valve may be vented, the vent should be above the fire site operator 1 meter (m) or more and not toward 15 meters (m) or less, emitting sparks and high temperature equipment location. Indoor equipment, safety containers should lead roof vent and the roof above two meters (m) or more. (4) When the inlet valve has cut off valve, cut off valve should be in a normally open state, and to be seals, to avoid mistakes. Valves | Valves wholesale | Everbright A28H safety valve (certified merchants) Ltd. by Shandong Everbright valve. Shandong Everbright Valve Co., Ltd. (www.sdgdfm.com) located in Weifang City, Shandong Province, Cravens District Bao Tong Street North Makers Industrial Park. Scraps and development in the wave of market economy, the current Everbright valve has a high profile in the ball, and enjoys a good reputation. Everbright valve made whole network business alliance certification, marking our service and management level has reached a new height. Everbright valve staff willing to work with all people of insight and common development, for a better future.