Advantages Over Butterfly Valves

No disc in waterway to restrict flow or to increase pumping costs

Allows passage of pigging devices

Internal parts can be serviced without cutting valve out of pipeline

25bar rating provides for future pressure increases over the 16bar pressure rating typically found on most butterfly valves

Advantages Over Double-Disc Gate Valves

Zero allowable leakage

Lower torque requirements to operate valve

25 bar pressure rating compared to the 16 bar rating typically found on double-disc gate valves

Epoxy-coated inside and out

Lighter total valve weight

Single-gate construction. Double-disc gate valves have multiple parts that can seize together.

Bypasses, rollers, tracks and scrapers are not needed.