The switch is lightweight and can be easily opened or closed by one person in under a minute, with straightforward operation. It also features a safety interlock device and complies with relevant provisions outlined in the national industry standards SY/T0556, "Technical Specifications for Quick-Acting Blind Flanges," as well as the "Safety Supervision and Inspection Regulations for Stationary Pressure Vessels."

Before closing the blind plate, this device must be properly installed; otherwise, the equipment cannot be pressurized. Before opening the blind plate, this device must first be deactivated to safely release any residual pressure inside the equipment—otherwise, the blind plate will remain locked and unable to open.

Featuring excellent reliability, it is the ideal choice for high-pressure applications; moreover, it boasts a wide range of applicability—suitable for high, medium, and low pressures alike—and is particularly well-suited as a blind flange for large-diameter pipes with diameters of 1500 mm or greater.

The blind plate represents a fully localized, domestically produced version of the quick-opening blind plate developed by Italy's FAI company—it features a three-lip clamp design, which is significantly superior to the earlier two-lip clamp models used domestically.

It features a simple structure with virtually zero failure rate, is easy to operate, and offers reliable safety. However, due to its design, this type of blind flange is suitable only for small-diameter applications with a design diameter of ≤500 mm.

Use discontinuous threads for the connection. When opening or closing the blind flange, simply interlock the discontinuous threads alternately, then rotate it slightly—this completes the process of opening or closing the flange.

If an audible and visual alarm is activated, it will sound and flash when residual pressure remains inside the equipment during the safety interlock release process. In this case, you must continue venting until all residual pressure is completely discharged, at which point the alarm will automatically stop.

This product comes with a safety interlock device; users can optionally add an audible and visual alarm system if desired.

The head cover features curved surfaces both on the inner and outer sides, ensuring optimal stress distribution while keeping the weight lightweight. Additionally, an anti-rotation ring has been added to the locking ring to prevent instability. A dust-proof ring has also been incorporated between the head cover and the cylinder flange, effectively shielding against the buildup and erosion caused by rainwater, sand, and other debris.

The blind plate represents a fully localized, domestically produced version of the quick-opening blind plate developed by Italy's FAI company—it features a three-lip clamp design, which is significantly superior to the earlier two-lip clamp models used domestically.

This product comes with a safety interlock device; users can optionally add an audible and visual alarm system if desired.

A steel storage tank is a sealed, steel container designed for storing liquids or gases. Steel tank engineering is an essential and critical infrastructure component indispensable to industries such as petroleum, chemical processing, grain & oil, food production, fire protection, transportation, metallurgy, and national defense.

It boasts excellent corrosion resistance, high strength, and long service life, with an appearance that can be customized into various models, including vertical, horizontal, transport, and mixing types.

Based on the material, they generally include: polyethylene tanks, polypropylene tanks, fiberglass tanks, ceramic tanks, rubber tanks, stainless steel tanks, and more.

Storage tanks are used to hold refined chemical substances such as acids, bases, alcohols, gases, and liquids.

A molten salt storage tank is a sealed container designed to store high-temperature liquid molten salt, typically consisting of a tank top, cylindrical body, and tank bottom, featuring a cylindrical arch roof design. It serves as the core equipment in molten salt energy storage systems.

The oil-gas separator is positioned between the submersible centrifugal pump and the protector, separating free gas from the well fluid. The liquid is then sent to the submersible centrifugal pump, while the gas is released into the annular space between the tubing and casing.

The ball-collecting device is similar to the ball-launching device, except that it features a vent valve installed at the front (upper part) to release pressure from the pipeline after ball collection, preventing airlocks. Additionally, a drain port is located at the bottom to remove debris and accumulated liquids from the front of the ball.