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| HTO / HTB Spring loaded safety valve |
| They are designed and manufactured in accordance with the requirements of ASME Boiler and Pressure Vessel Code, Section VIII. The discharge coefficient is certified by the American National Board of Boiler and Pressure Vessel Inspectors. They are widely used to provide high-performance and high reliable overpressure protection of equipments, pressure vessels and piping in various fields of petrochemical, chemical and natural gas industries. |
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| HTXD pilot-operated safety valve |
| HTXD pilot-operated safety valves are designed and manufactured in accordance with the requirements of ASME Boiler and Pressure Vessel Code, Section VIII. They are composed of a main valve and a pilot valve. The pilot valve automatically responds to the pressure change of the system media to control the open and close of the main valve. This series of safety valves suit working conditions of high back-pressure, large flowrate, high pressure, strict sealing requirements and compact installation location. |
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| HTDS Controlled Safety Pressure Relief System |
| The system is made up of a safety valve, a pneumatic actuator, and a pneumatic controller. The pneumatic auxiliary device ensures accurate open and close of the safety valve, and provides auxiliary sealing. The system suits the working conditions that the working pressure is very close to the set pressure. The control system uses redundant design. When the electromagnetic pneumatic control device fails, the controlled safety valve body can still work. The system has remote operation of mandatory emission and reseating functions to meet a variety of explosion-proof rating requirements. |
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| HTKH Safety Valve Quick Crossover Device |
| The device is made up of a crossover valve and two same safety valves. One safety valve is for online overpressure protection, and the other is for maintenance spare. With the device, without equipment stop, online change of the working and spare safety valves can be achieved to fully meet the requirements of online backup discharge. The device provides continuous overpressure protection and extends the operating cycle of the equipment. The crossover valve has three-way flow path design, has the features of low flow resistance, wide applicable temperature range and anti-misuse. |
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| HTGS High-Performance Steam Safety Valve |
| The valves are specifically designed for steam power systems in petroleum, chemical, thermal power and nuclear power industries, mainly used in power boilers, one-through boilers, reheaters and related piping systems. The product complies with the requirements of ASME Boiler and Pressure Vessel Code, Section I, Rules for Construction of Power Boilers. The valves have features of low overpressure, small blowdown, and reliable action performance. An elastic thermal valve clack is adopted, which ensures the sealing performance under the high temperature and high pressure working conditions. |
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| HTNJ Thermal Insulation Jacketed Safety Valve |
| They are designed and manufactured in accordance with the requirements of ASME Boiler and Pressure Vessel Code, Section VIII. All-inclusive jacket structure is adopted, and steam flushing function can be added. They have good thermal insulation effect. They are widely used in industries that media is easy to crystallize and needs insulation, such as polyester, ethylene, urea fertilizer, and other devices. |
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