IMPA: 752216

Butterfly Valve Wafer Type with Worm Gear Actuator DN150 (6")

This butterfly valve features a wafer type design with a worm gear actuator, providing smooth and effortless manual operation for precise flow control in marine piping systems. The worm gear mechanism allows for infinite adjustment of the disc position, enabling accurate regulation of media flow. The valve body is equipped with limit stop bolts for full open and full close positions, ensuring reliable and repeatable operation. An integrated position indicator on the gearbox allows easy visual confirmation of the disc opening angle. Turning the handwheel clockwise closes the valve, counterclockwise opens it, offering intuitive operation.

Constructed with a compact wafer-style body, this valve is easy to install between flanges, making it suitable for shipboard piping, industrial fluid lines, HVAC, and water treatment applications. The durable materials and reliable sealing ensure long service life. This valve is ideal for isolation and throttling services where positive shut-off and flow regulation are required.

Key Features

Technical Specifications

SpecificationValue
Nominal SizeDN150 (6")
Disc Diameter (φd)153.5 mm
Flange Diameter (φD)211 mm
Face-to-Face (L)56 mm
Center to Top (H1)135 mm
Overall Height (H2)202 mm
Shaft Height (H3)34.5 mm
F173.5 mm
W160 mm
Weight11.2 kg
TypeWafer Type with Worm Gear
OperationManual Hand Wheel

Frequently Asked Questions

What is the operating principle of this butterfly valve?

This valve uses a worm gear actuator that translates handwheel rotation into smooth disc movement. Turning clockwise closes the valve, counterclockwise opens it. The worm gear provides mechanical advantage for easy operation even under pressure.

What are the typical applications for this valve?

It is designed for marine piping systems, industrial fluid pipelines, HVAC, and water treatment. The wafer type design allows installation between flanges, making it suitable for space-constrained areas.

Does this valve have a position indicator?

Yes, the gearbox top includes an integrated position indicator that shows the disc opening angle, allowing visual confirmation of the valve position.

What is the weight of this valve?

The valve weighs 11.2 kg, making it manageable for installation in marine and industrial environments.

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