Zhejiang Demelong Fluid Technology Co., Ltd.: Your Professional Lifting Metal Seated Plug Valve Manufacturer!
Zhejiang Demelong Fluid Technology Co., Ltd. (DMLV) is a leading industrial valve Manufacturer headquartered in Wenzhou, China. We specialize in the design, development, and production of high‑performance plug valves and flow control solutions for diverse industries such as petrochemical, power generation, wastewater treatment, oil & gas, and industrial fluid systems.
Quality Control
We manage the entire production process, from raw material procurement to final inspection. Each valve undergoes rigorous quality inspection to ensure stable performance, durability, and compliance with international standards.
Customization Available
We support customization based on drawings or samples, meeting non-standard sizes, materials, and coating requirements to suit specific operating conditions.
Advanced Production Equipment
We possess advanced equipment including automatic internal and external cylindrical grinding CNC vertical lathes, CNC machine tools, valve grinding machines, and intelligent universal drive motors.
Wide Range of Applications
Our products are widely used in industries such as petroleum, chemical, natural gas, pharmaceutical, power, and construction.
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![Metal Seated Plug Valve]()
Metal Seated Plug ValvePrinciple of Valve Opening and Closing The process of opening and closing the valve involves: When opening the valve, first turn the handwheel to lift the plug away from the sealing surface, then -
![API Lifting Plug Valve]()
API Lifting Plug ValvePrinciple of Valve Opening and Closing The process of opening and closing the valve involves: When opening the valve, first turn the handwheel to lift the plug away from the sealing surface, then -
![Butt Weld Lifting Plug Valve]()
Butt Weld Lifting Plug ValveProduct Introduction Butt Weld Lifting Plug Valve is a plug valve designed for welded pipeline systems. The lifting plug mechanism reduces sealing wear during operation, helping improve service life -
![Fully Jacketed Lifting Plug Valve]()
Fully Jacketed Lifting Plug ValveProduct Introduction Fully Jacketed Lifting Plug Valve features a lift plug mechanism and fully jacketed body, designed for viscous, corrosive, or temperature-sensitive media. It maintains fluid -
![Insulated Lifting Plug Valve]()
Insulated Lifting Plug ValveProduct Introduction Insulated lifting plug valve is a high-performance industrial valve. It provides stable flow control for temperature-sensitive and corrosive fluids. Product Features Keep -
![Lifting Flanged Plug Valve]()
Lifting Flanged Plug ValvePrinciple of Valve Opening and Closing The process of opening and closing the valve involves: When opening the valve, first turn the handwheel to lift the plug away from the sealing surface, then
A Lifting Metal Seated Plug Valve is a quarter-turn valve designed for reliable shut-off in high-pressure and high-temperature pipelines.
As a professional Lifting Metal Seated Plug Valve Manufacturer, we produce valves suitable for severe service conditions including high pressure, high temperature, and media containing particles, ensuring stable operation and long service life.
Specifications
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Structural style |
BB-BG-OS&Y |
|
Driving mode |
Handwheel,Bevel gear,Handle |
|
Design standard |
API 599,API 6D |
|
Structure length |
ASME B16.10 |
|
Connecting flange |
ASME B16.5 |
|
Test and inspection |
API 598,API 6D |
Features
Lift-Then-Rotate Operating Mechanism
The plug lifts before rotating, eliminating friction between the sealing surfaces during movement and reducing operating torque.
Low Flow Resistance
The circular flow channel design reduces pressure loss and allows smooth fluid passage through the pipeline.
Long Service Life
Because the plug does not scrape the seat during operation, sealing surfaces experience less wear, extending valve lifespan.
Suitable for Harsh Conditions
Metal seated lift plug valves can operate under temperatures up to 550°C and high pressure environments.
Raw Material Inspection
All body and trim materials are verified for chemical composition and mechanical properties.
Precision Machining Inspection
CNC machining ensures accurate plug taper, sealing surface quality, and stem alignment.
Assembly and Functional Testing
Each valve is assembled and tested for smooth lifting and rotation operation.
Pressure and Leakage Testing
Hydrostatic shell testing and seat leakage testing are conducted according to API standards.
Final Inspection
Finished valves are checked for dimensions, surface coating, identification marks, and packaging before delivery.
Certificate
FAQ
Find professional lifting metal seated plug valve manufacturers and suppliers in China here! With abundant experience, we warmly welcome you to buy high quality lifting metal seated plug valve made in China here from our factory. Customized orders are welcome.
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