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Plug Valves

Plug valve is a closed piece or plunger-shaped rotary valve, by rotating 90 degrees to make the valve plug on the channel port and the valve body on the channel port connected or separated, to achieve the opening or closing of a valve.


Its plugs can be cylindrical or conical in shape. In cylindrical plugs, the channel is generally rectangular; in conical plugs, the channel is trapezoidal. These shapes make the plug valve lightweight. It is most suitable for use as a cut-off and switching medium and for shunting, but depending on the nature of the application and the corrosion resistance of the sealing surface, it may sometimes be used to throttle the flow. It is the ideal product with the advantage of deposit-free, anti-crystallization, anti-corrosion, and anti-high temperature and high pressure for pipe systems.


There are two typical types of plug valves, which are lubricated and non-lubricated. The seat is an integral part of the body in terms of lubricated plug valve. For non-lubricated plug valve, there will be lined and sleeved type, with a soft seal design to improve leakage tightness of the valve. Weidouli plug valves are focus on non-lubricated sleeved types with reduced bore or full bore designs, typically applied for strong corrosive applications.

Design Feature Of Plug Valves


We can provide you with single gland type plug valves, double glands type plug valves, 3-way plug valves, jacketed plug valves, full port plug valves. In addition to standard ranges, also available from stock are full bore,  lockable, and ATEX compliant actuation, low emission, etc. See below some specifications available:


Design

API599, ASME B16.34

Testing

API 598, API6D, EN12266-1

Face to face dimension

ASME B16.10

Ends connection

ASME B16.5, ASME B1.20.1, ASME B16.25

Pressure temperature rating

ASME B16.34

Marking

MSS SP-25

Non-destructive Examination

VT, PT, RT, UT, MT

Options

Full bore reduced bore

Structure Features

Non-lubricated

Threefold stem seal system

Zero leakage

Cavity free design

360° metal lips design

Quick turn feature

Anti-static Design

Fire-safe

Replaceable sleeve

Bi-directional flow

Double gland seals design

Trunnion design

Fugitive emission design

Operation

Handle, Gear, Pneumatic actuators, Hydraulic actuator, Electrical actuator


Weidouli Plug Valves Patents Of Plug Valves


  • Trunnion Type Plug Valve For Severe Application [Patent No.: ZL200920201533.0]


  • Special Alloy Plug Valve For Severe Application [Patent No.: ZL200920190134.9]


  • Regulating Plug Valve in Special Alloy [Patent No.: ZL200920190135.3]


  • Fire Safe Plug Valve in Special Alloy [Patent No.: ZL200620141806.3]


  • Double-groove Soft seal Plug Valve in Hastelloy  [Patent No.: ZL2200720108254.0]


  • Eco-Friendly Fully Enclosed Sampling valve  [Patent No.: ZL200720108254.0]


  • Lifting Plug Valve [Patent No.: ZL201220267864.6]


  • Specific Plug Valve for Hydrochloric Acid Metallurgy [Patent No.: ZL201320429929.7]


  • Anti Deposition & Anti Deviation Circular Port Plug Valve [Patent No.: ZL201420327904.0]











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Types Of Plug Valves

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Tel:
0086-577-86921659
Add:
No.20, Xingyu Road, Airport Industrial Zone, Wenzhou city, 325024 P.R.
No.20, Xingyu Road, Airport Industrial Zone, Wenzhou city, 325024 P.R.
sale@weidouli.com
0086-577-86921659