Combinations of 1-7 control handles are available to achieve valve opening and closing control.When the valve is in the open state and the ambient temperature exceeds the design temperatureeach handle will automatically reset and close the valve of the controller. Remote emergency equipment (Hander) remote control controller can be configured to ensure thesafety of tank truck unloading operations.

The product's durability and performance are guaranteed by the high-guality precision-cast valvebody and component materials It adheres to the relevant reauirements of QC/T932. ensuring product safety and reliability. Equipped with stainless steel mesh, it effectively prevents foreign objects from escaping. It can be fitted with an external cylinder for pneumatic opening, and a fusible cut-off device can beinstalled for added safety measures.

The large flow design fulfills the necessary criteria. The rollover and overflow prevention feature guarantees that the tanker can prevent material fromspilling out from the breather valve post-dumping. The shell, crafted from aluminum alloy or stainless steel, comes with a robust fire screen tosafeguard against foreign objects entering the tank during inhalation.

The product's durability and performance are guaranteed by the high-quality precision castvalve body and component materials. Featuring an independent cylinder, maintenance and replacement are simplified as it can beremoved separately. The screw-up valve cover facilitates easy access to the valve disc andallows for the replacement of the sealing ring without having to remove the entire valve assembly. Adhering to the relevant standards outined in QCT932 ensures the safety and reliability of theproducts. Equipped with a stainless steel filter screen, it effectively prevents the flow of foreignobjects. Additionally, the structural design includes a manual emergency opening feature. A built-in fusibleplug ensures automatic valve closure when the ambient temperature reaches 70-80°C.

This product is tailor-made for bottom loading and unloading, featuring an interface size thatmeets APl Rp1004Split standards, it is split design and hard anodizing significantly prolong theproduct's service life. The precision-cast valve body and premium components assure top-notchperformance and reliability. Moreover, its two-stage valve opening system enables different flow outputs and user-friendlyoperation. Plus, an optional sight glass facilitates easy inspection for liquid accumulation withinthe valve.

Option of 2 1/2" BSP threaded connection or 3" flange connection available. The flange connection features a long round hole, suitable for DN65 and DN80 flanges, with a 1/4" BSP thread interface. Options include provision for positive pressure, negative pressure, or solely positive pressureDesian opening pressure is customizable.

The valve body incorporates an insulating layer structure, designed for steam heating to easeunloading. Equipped with shear grooves, it offers insulation valves in different sizes, including DN100, DN150and more.

Clamp installation type:Facilitates easier maintenance and disassembly. Emergency exhaust device: Equipped with a sensitive spring mechanism to release internal pressure during high temperatures. Built-in breather valve: Regulates internal tank pressure through suction or exhaust, with an anti-overflow feature toeffectively prevent material leakage after tank overtuming. Feeding port: With a nominal diameter of 250mm, it allows for easy insertion of the crane pipe during top loading. Second-order opening: Incorporates a two-stage opening mechanism, fully opening only after releasing residual tankpressure. Customize the left or right hand opening setting to change the exhaust device's openingdirection.