Products Description
Overview
Worm gear wafer butterfly valve consists of:
Body type: Wafer - fits between two flanges in the pipeline and is held in place by bolts. It's compact, lightweight, and ideal for limited-space installations.
Disc: The rotating element that opens or closes the flow path.
Seat: Provides a tight seal when the valve is closed.
Stem (shaft): Connects the disc to the actuator.
Worm gear operator: A handwheel-operated gearbox that uses a worm-and-gear mechanism to reduce torque and allow precise control.
Features
Product Name: Worm gear wafer butterfly valve
Material: Ductile Iron
Working Pressure: 1.6Mpa
Surface Finishing: Epoxy Red or Blue
Products Parameter
forede® worm gear wafer butterfly valve with different size and standard for option:
| Model | Material | Size | Working Pressure |
Surface Finishing |
| ZSXDF7-Q-50-16 | Ductile Iron |
DN50(2'') |
16 bar |
Epoxy Red or Blue |
| ZSXDF7-Q-65-16 | Ductile Iron |
DN65(2.5'') |
16 bar |
Epoxy Red or Blue |
| ZSXDF7-Q-80-16 | Ductile Iron |
DN80(3'') |
16 bar |
Epoxy Red or Blue |
| ZSXDF7-Q-100-16 | Ductile Iron |
DN100(4'') |
16 bar |
Epoxy Red or Blue |
| ZSXDF7-Q-125-16 | Ductile Iron |
DN125(5'') |
16 bar |
Epoxy Red or Blue |
| ZSXDF7-Q-150-16 | Ductile Iron |
DN150(6'') |
16 bar |
Epoxy Red or Blue |
FAQ
Q: How do you install a wafer butterfly valve?
Align the flanges and insert the valve between them.
Ensure the valve disc is slightly open to avoid damage during installation.
Tighten bolts evenly in a cross pattern.
Check that the disc moves freely after installation.
Q: Can it be installed in any direction?
Yes, wafer butterfly valves can typically be installed in both horizontal and vertical pipelines, but ensure the gear operator is accessible.
Q: What maintenance is required?
Periodic inspection of the seat and disc for wear or buildup
Check worm gear lubrication
Tighten bolts and fasteners if necessary
Q: Why use a worm gear instead of a lever?
Worm gear operation is ideal for:
Larger valve sizes
Higher pressure systems
Situations requiring fine flow control or locking capability
Q: What should I do if the valve becomes hard to operate?
Buildup or debris around the disc
Damaged seat
Lack of lubrication in the worm gear
Misalignment of the valve during installation
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