IMPA: 752215

Butterfly Valve Wafer Type with Worm Gear Actuator – DN125 (5")

This wafer-type butterfly valve features a worm gear actuator for smooth, precise throttling and shut-off in marine piping systems. The worm gear mechanism provides mechanical advantage, making operation effortless even under high pressure. Designed for DN125 (5-inch) flanges, it offers reliable flow control for seawater, freshwater, and other shipboard fluids.

The valve includes adjustable limit stops for full-open and full-closed positions, ensuring repeatable performance and preventing over-travel. A built-in position indicator on the gearbox allows at-a-glance verification of disc angle. The compact wafer body simplifies installation between flanges, reducing weight and space requirements. Suitable for ship chandlery, industrial pipelines, HVAC, and water treatment applications.

Key Features

Technical Specifications

SpecificationValue
Nominal SizeDN125 (5")
Disc Diameter (φd)130 mm
Flange Diameter (φD)181 mm
Face-to-Face (L)56 mm
Center to Top (H1)118 mm
Overall Height (H2)191 mm
Shaft Height (H3)34.5 mm
F Dimension173.5 mm
W Dimension160 mm
Weight9.6 kg (21.2 lbs)
TypeWafer, Worm Gear Actuated
OperationManual Handwheel (CW close)

Frequently Asked Questions

What is the operating direction of the handwheel?

Turning the handwheel clockwise closes the valve; counterclockwise opens it.

Can this valve be used for seawater?

Yes, it is suitable for marine applications including seawater, freshwater, and other shipboard fluids.

Does it come with limit stops?

Yes, the valve includes adjustable limit stops for full-open and full-closed positions.

What is the weight of the valve?

The valve weighs 9.6 kg (approximately 21.2 lbs).

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