WA/WAS Series Ball Valves

  • How can I fix a stem leak on a Superior ball valve?

    The Superior ball valves seal with a packing instead of O-rings. First, try slightly torqueing the pack nut around the stem to see if this stops the leak. If not, we offer WA/WAS cap kits to replace the packing.

  • Will ball valves work as atmospheric isolation valves?

    No. Refrigeration ball valves are permitted to leak internally, per industry standard, up to 10 ounces of refrigerant per year are allowed to leak past internal seals. This is a very important consideration when assembling a multi split system. External leaks cannot exceed .10 ounces of refrigerant per year.

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