Main Advantages
1. Excellent Anti-clogging Performance: Smooth flow path with no dead corners, suitable for media containing solid particles, slurries, and high viscosity.
2. Low Flow Resistance and High Flow Capacity: Higher flow coefficient (Cv) than straight-through valves of the same diameter, resulting in less pressure drop.
3. Strong Self-Cleaning Property: The media flow direction facilitates the flushing of residues, preventing coking and scaling.
4. Good Sealing Performance: Single-seat structure, leakage class up to Class IV and V, some up to VI.
5. Easy Installation: Suitable for direct installation at pipeline bends, saving elbows and space.
Applicable Operating Conditions
• High viscosity media: asphalt, heavy oil, adhesives, slurries
• Particulate media: sewage, mud, coal slurry, crystalline materials
• Media prone to coking and adhesion
• Boilers, chemical industry, papermaking, sewage treatment, petroleum industry
• Also commonly used in pressure reduction and regulation applications with high pressure differentials and severe erosion
Common Parameter Range
• Nominal diameter: DN15～DN200
• Nominal pressure: PN16, PN25, PN40, PN64, Class150/300/600
• Temperature range: -40℃～450℃ (depending on material)
• Materials: Cast steel WCB, stainless steel 304/316, hard alloy, fluoropolymer-lined, etc.
