Plug Valve
Product Description:
Plug valves are quarter-turn rotary motion valves used to stop or start the flow of fluid in pipelines. The valve uses a cylindrical or conical plug with a bored-through passage that rotates inside the body to control flow. Due to their straight-through flow path and compact design, plug valves are especially effective in systems requiring frequent operation and tight shut-off.
Design & Construction Features:
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Design Standard: API 599 / ASME B16.34 / BS 5353
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Size Range: ½” to 24” (DN15 to DN600)
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Pressure Ratings: Class 150, 300, 600 (PN16 to PN100)
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Body Types: Lubricated, Non-Lubricated, Sleeved, Lined, Multiport
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Port Configuration: Full Port / Reduced Port / Multi-way (3-way, 4-way)
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Operation: Lever, Gear, Pneumatic, Electric Actuator
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Flow Direction: Bi-directional or uni-directional depending on design
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End Connections: Flanged (ASME B16.5), Butt Weld, Socket Weld, Screwed (NPT/BSP)
Materials of Construction:
|
Component |
Material Options |
|---|---|
|
Body & Bonnet |
ASTM A216 WCB, CF8, CF8M, Ductile Iron, Alloy Steel |
|
Plug |
SS316, ENP-coated Carbon Steel, PTFE-lined Steel |
|
Seat / Sleeve |
PTFE, RPTFE, PFA, Metal, Elastomer-lined |
|
Stem |
SS410, SS316, Monel (Optional) |
|
Gaskets |
Spiral Wound SS + Graphite / PTFE |
|
Fasteners |
Carbon Steel, SS304, SS316 |
Performance Characteristics:
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Tight Shut-Off: Bubble-tight sealing (Class VI) with soft sleeves or elastomer seats
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Fire Safe Design: Available as per API 607 / ISO 10497 (Metal-to-Metal Seating)
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Antistatic Features: Provided to prevent static discharge
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Maintenance: Low-maintenance designs available (non-lubricated / PTFE-lined)
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Temperature Range: -40°C to 300°C depending on seat and body material
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Torque Requirements: Moderate, varies by seat material and pressure rating
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Multiport Options: Allows flow diversion or mixing in single-valve configurations
Types of Plug Valves:
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Lubricated Plug Valve: Uses grease or sealant for sealing; suited for high-pressure and abrasive services.
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Sleeved Plug Valve: Features a PTFE or elastomeric sleeve for smooth operation and low torque.
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Lined Plug Valve: PFA/PTFE-lined for corrosive fluid applications in chemical service.
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Multiport Plug Valve: Reduces number of valves in diverter or distribution services.
Testing & Compliance:
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Hydrostatic & Pneumatic Testing: API 599 / ISO 5208
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Material Traceability: EN 10204 3.1 / 3.2 available
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Standards & Certifications: ISO 9001, CE, PED, ATEX, IBR, SIL-ready
Applications:
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Oil & Gas Pipelines
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Petrochemicals & Chemicals
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Water Treatment Systems
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Slurry and Abrasive Media Handling
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Pulp & Paper Industries
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HVAC and Utility Systems
