This 8″, Class 150 sleeve-type plug valve features a corrosion-resistant UB6 alloy body and plug, engineered for demanding chemical-processing conditions. The design emphasizes corrosion resistance, particle tolerance, and low-torque sealing performance.


- Construction & Materials
Body & Plug
Manufactured from UB6 high-alloy austenitic stainless steel, providing exceptional resistance to acidic, chloride-rich, and aggressive chemical media.
Excellent pitting, crevice, and intergranular corrosion resistance.
Precision-machined plug surface enhances sealing performance and reduces sleeve wear.
Sleeve
PTFE or reinforced PTFE (depending on specification), offering:
Broad chemical resistance
Extremely low friction coefficient
Elastic memory for tight sealing
Typical operating range from −29°C up to approx. 200°C
Gearbox Operator
Provides higher output torque and smooth, controlled operation.
Suitable for large valves or media containing solids or viscous components.
Available with corrosion-resistant housings for harsh outdoor environments.
- Key Design & Performance Features
Sealing System
360° fully encapsulating sleeve design minimizes potential leakage paths.
Sealing surfaces are isolated from direct media impingement, increasing service life.
Particle Handling
Sleeve-type construction prevents solids from entering sealing gaps, reducing jamming risk.
The non-metallic sleeve surface tolerates minor particulates.
Flow Channel Optimization
Straight-through port design minimizes pressure drop, ideal for stable flow requirements.
Leakage performance can reach Class VI or equivalent, depending on the supply spec.
Pressure & Temperature Envelope
Pressure rating per Class 150 standards.
Temperature capability primarily governed by the PTFE sleeve, typically up to 200°C.
High-temperature options available via modified sleeve materials.
- Suitable Media & Applications
Suitable Media
High-temperature acidic fluids
Fluids with suspended solids, crystals, or corrosive particulates
Corrosive gases or process off-gases
Medium-viscosity chemical fluids
Typical Applications
Acid washing or corrosive cleaning systems
Transfer of crystal-bearing mother liquors
Acidic waste streams with solids
Corrosive solvent recycling systems
Chemical pipelines requiring low torque and high sealing reliability
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