| Customization: | Available |
|---|---|
| Media: | Gas |
| Temperature: | Ordinary Temperature |
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The new line blind for pipelines, developed by henan quanshun flow control science & technology co., ltd., features a unique clamping mechanism. Utilizing the principle of spiral transmission, it employs a single locking device instead of the traditional three-point locking system. This allows for the switching of the valve plate without the need to expand the pipeline, resulting in higher efficiency, reduced size, lighter weight, and smoother, more convenient, and quicker operation. it is suitable for use in industries such as petroleum, chemicals, steel, and can be applied to feed pipelines in equipment, transfer storage/pumping station pipelines, reactor feed pipelines, gas pipelines in metallurgical blast furnace systems, flare systems. And more, the line blind serves as a reliable cut-off device, playing a critical role in equipment maintenance, pipeline switching, media isolation, preventing media leakage, protecting personnel safety, and reducing environmental pollution. Additionally, it can be applied in various complex industrial and mining conditions involving water, gas (steam, air, natural gas, etc.), petroleum refining, oil products, metallurgical slag, slurry, granular media, dust media and multiphase flow.
structural features
1. the line blind utilizes a unique and simple switching mechanism, allowing one person to easily, quickly, and safely stop or operate the pipeline without the need for any tools or lifting equipment.
2. the valve plate can be switched open or closed without expanding the pipeline.
3. when in the closed position, no liquid or gas medium can leak downward, ensuring 100% safety isolation with zero leakage.
4. the line blind can be easily and safely operated by a single person without the need for special training.
5. no special tools are required; simply turn the handwheel, then swing or slide the valve plate to achieve pipeline interception or cut-off, eliminating the need for heavy mechanical tools like cranes.
6. using the line blind for isolation reduces worker labor intensity, requires fewer pipeline operators, and presents no danger.
7. a safety locking device is added to the handwheel operation position to prevent operator errors that could lead to accidents, ensuring safety.
8. the valve is compact, lightweight, with a simple and reliable structure, making maintenance easy.
9. the flow channel is designed with a full-bore structure, allowing for zero flow resistance.
2. Non spill type
Non spill type of Line Blind has good advantages in Oilterminal & offshore applications where is limited in stallation space and marine pollution is strictly prohibited.The three sides covered body & compact design prevents ground pollution and it allows to installat parallel pipe lines.
| Valve Size | 2''~36'' |
| Valve Pressure | Class 150-900 |
| Valve Body Material | Stainless Steel 304/316 WCB |
| Seal Ring | FKM/FFKM |
| Working temperature | -40~327ºC |
Henan Quanshun Flow Control Technology Co., Ltd. is a subsidiary of the Quanshun Group, a high-tech enterprise integrating the research and development, design, casting, manufacturing, sales, and service of intelligent industrial valves. Established in 2005 with a registered capital of 100.08 million yuan, the company operates three bases. It has been recognized as a provincial-level enterprise technology center, an advanced enterprise in fixed asset investment in Zhengzhou High-tech Zone, and an outstanding economic contributor. It is also a national high-tech enterprise with high growth potential. The company is the core drafting unit for eight national and industry standards, including the "Eccentric Semi-ball Valve," "Bidirectional Metal Hard Sealing Butterfly Valve for Urban Heating," "Insulation Jacket Valve," "Alumina Slurry Valve," "V-Ball Valve," "Hydraulic Control Valve," "Piston Flow Control Valve," and "Rotary Ball Valve." The company holds nearly 70 patents, including invention patents and national utility model patents. The "Quanshun" brand valves have earned various honors, such as provincial high-quality branded products, energy-saving products, key industrial products, Henan Province's first (set) major technical equipment products, "Specialized, Refined, Featured, and Innovative" enterprise recognition, and Henan Province's "Small Giant" in technology filed.
Q: Why choose our quick action line blind?
A: Quanshun Quick Line Blinds Offer a combination of two essential criteria--Zero Leakage and Safe & Easy blinding by untrained one operator
Q: Advantages compared with traditional line blind valve?
A: 1.No line spread: The unique & simple Gear-set mechanism makes a gap to switch blind plate without line spreading
2.Auto positioning of blind plate: Blind plate is set on correct position by positioner
3.Hand wheel torque indicator: Torque indicator provides correct positioning of tightening untightening operation
4.Safety locking: Locking devices with Pad Lock with key secure safety from incorrect operation by unauthorized operator
5.Self stick free mechanism: Unique gear set mechanism shall free the blind plate from sticking problem
6.Gasket protection cover: Blind cover protects blind plate from external damages
7.Double Sealing (optional): Depend on media and operating conditions, seal ring can be placed in double for safety
8.Open/Close position sensor(optional): Sensors can be installed to indicate blind plate position
Q: What causes leakage at the valve and pipe connection?
A: First, the sealing surface is damaged or contaminated by dirt; Second, gasket failure; Third, the pipe flange pressure is uneven or not pressed.
Q: How to deal with leakage at the connection of valve and pipeline?
A: The following measures can be taken: repair the sealing surface or clean up the dirt; Replace the gasket; Press the flange bolt evenly.
Q: What is the cause of leakage in the valve?
A: There is mainly debris on the sealing surface, or the sealing surface is damaged.
Q: How to deal with internal leakage of valve?
A: Remove the debris on the sealing surface and repair or replace the sealing pair.
Q: What is the problem caused by the inflexibility of valve opening and closing?
A: First, the executive mechanism failure; Second, there are foreign objects blocked valve plate.
Q: How to solve the valve opening and closing is not flexible?
A: When the actuator fails, repair or replace the actuator; If foreign objects block, remove foreign objects, and be careful not to damage the sealing surface.
Q: Can the valve actuator adjust itself?
A: The valve actuator has been debutted before leaving the factory, and non-professional personnel are forbidden to adjust.
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