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Tools Required for Replacing Dome Valve Seal Rings

Jul 05, 2026

Core Specialized Tools
Valve stem nut wrench: Sized to fit the specific valve stem nut; used to remove the top plate/connector mounting bolts.
Valve stem puller: Used to handle stuck stem components, preventing damage to the valve body caused by forced disassembly.
Tapered guide sleeve: Guides the new seal ring smoothly into the sealing groove, preventing the lip from folding over or getting scratched.
Plastic/rubber mallet: Used for tapping during installation; soft-faced tools prevent metal-on-metal impact damage to the sealing surface and spherical valve core.

 

Safety and Protective Equipment
Oil- and corrosion-resistant industrial gloves: Prevent direct skin contact with residual media.
Safety goggles: Protect eyes from flying dust or debris remaining in the valve cavity.
On-site warning signage: Used to mark off a safe work zone before operations begin, preventing unauthorized personnel from accidentally touching the equipment.

 

Auxiliary Consumables
Lint-free cloth and isopropyl alcohol: Used to thoroughly clean the sealing groove and the spherical surface of the valve core.
Silicone-based grease: Applied sparingly to the seal ring lip to reduce installation resistance.
Adjustment shims (0.4mm, 0.8mm, 1.5mm): Used to calibrate the sealing gap to the 0.3–0.6mm range.
Soapy water or leak detection fluid: Used to check for leaks at the sealing surface under pressure after installation.

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