Metallurgical Valves
Manual Blind Valve (manual Fan-shaped Blind Valve/eyeglass Valve)

Applicable Medium

Gas, Flue Gas, Blast Furnace Gas, Converter Gas, Industrial Waste Gas, Dust Gas, Etc

Connection Type

Flange Connection

Execution Standard

GB/T 12238、JB/T 10675、API 598

Main Material

Carbon Steel (WCB), Stainless Steel, Lined With Rubber/fluororubber

Operation Method

Manual (umbrella Gear/chain), Manual Push Rod Assist

Product Dimensions

DN300~DN2000

Product Pressure

PN0.1~PN2.5MPa

Temperature Range

-20℃~450℃

Product Features

The fan-shaped blind plate adopts a composite structure of metal and soft sealing (rubber/fluororubber), with bi-directional sealing and zero leakage, effectively blocking gas and other media, and meeting safety partition requirements.

Equipped with umbrella gear, chain or push rod manual drive mechanism, the operating torque is small, the opening and closing of large-diameter valves is effortless, and no additional power source is required.

Whole cast/welded valve body, resistant to impact and vibration; Fan shaped blind plate flip flow channel design, no dead zone, low medium resistance, suitable for large-diameter pipelines.

Split structure design, seals can be replaced online, without the need to disassemble the valve as a whole; The valve body can be equipped with insulation and anti-corrosion coatings, suitable for low temperature and corrosive working conditions.

Manual Blind Valve (manual Fan-shaped Blind Valve/eyeglass Valve)
Quality Control
Robot production
Automated assembly
industry leader
Annual production of 6 million units
ERP-MES-QMS
Accuracy is under control
Within 3 microns
Select high-quality alloy steel, stainless steel and other materials, Ensure that the valve body has both strength and toughness. Equipped with CNC equipment and testing instruments, Through precise temperature control and Pressure adjustment, Ensure that every product meets high-precision requirements, The error of the molded parts is extremely small.
Having high-precision CNC machining centers and CNC lathes.Build intelligent assembly lines for automatic modeling, assembly,painting, and other processes
In the field of valve manufacturing, Paili Valve Group has entered the forefront of the industry with advanced production equipment, and has built a complete production system with cutting-edge technology and exquisite craftsmanship.
In production, high-precision CNC machining centers perform precision machining on raw materials such as cast steel and stainless steel, ensuring component dimensions with micrometer level accuracy and improving efficiency and product consistency; Silica sol casting equipment produces high-quality castings that are dense, high-strength, and corrosion-resistant, solidifying product performance.
The testing process is equally strict: pressure testing equipment simulates extreme working conditions to ensure stable high-pressure sealing of valves; Non destructive testing and spectral analyzer comprehensively detect materials and finished products, strictly controlling quality and safety.
QUALITY CONTROL
The company strictly controls every production process The product strictly implements and operates in accordance with international standardization A comprehensive quality management system
CMM Measuring
Handheld spectrometer
Ultrasonic testing
Hardness tester
Pressure test
Pressure test & Inspection
Metal butterfly valve
Product Site
Metal butterfly valve
Metal butterfly valve, adapted to diverse industrial scenarios with excellent performance. The main body is made of high-quality metal Material, which has high strength and corrosion resistance. It has no fear of acid, alkali, high temperature and other severe environmental challenges, and has a long-term stable operation, effectively reducing the frequency and cost of equipment maintenance. Unique butterfly plate design, fast and precise opening and closing, low fluid resistance, can efficiently control the on/off and flow regulation of pipeline media. The sealing structure is tight, in line with industrial grade sealing standards, with extremely low leakage, ensuring system safety and eliminating fluid leakage hazards.
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