Shandong Mengshun Machinery Technology Co., Ltd.
Vertical Lock-Ring Type Quick-Open Blind Plate
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."
Horizontal Lock-Ring Type Quick-Open Blind Plate
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.
Vertical Clamp-Type Quick-Open Blind Plate
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.
Horizontal Clamp-Type Quick-Open Blind Plate
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.
Horizontal Plug-Type Quick-Open Blind Plate
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.
Vertical Plug-Type Quick-Open Blind Plate
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.
Fixed-pressure-ring quick-opening blind plate
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.
Fixed-pressure-ring quick-opening blind plate
This product comes with a safety interlock device; users can optionally add an audible and visual alarm system if desired.
Fixed-pressure-ring quick-opening blind plate
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.
Clamp-type quick-opening blind plate
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.
Ratchet-type quick-opening door
This product comes with a safety interlock device; users can optionally add an audible and visual alarm system if desired.