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Close-up of Febco replacement check spring (part 630-106) for Series 765 pressure vacuum breaker, shown sized for 1" and 1-1/4" assemblies.

Febco 630-106 Stainless Steel Check Spring for Series 765 (1"/1-1/4")

Brand: Febco
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$41.56
$31.17
SKU 630-106
In Stock (2)

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Replacement OEM check spring designed specifically for Febco Series 765 pressure vacuum breakers. Part 630-106 fits the 1" and 1-1/4" units and is intended as a direct replacement for the internal check assembly spring. Use this part to restore proper poppet and check operation after wear, corrosion, or freeze-related damage. Refer to the Series 765 parts diagram and service manual when ordering and installing.

  • Part number: 630-106 — OEM Febco replacement check spring.
  • Fits: Febco Series 765 pressure vacuum breakers, nominal sizes 1" and 1-1/4".
  • Application: Internal check/poppet spring used in the check assembly of Series 765 PVBs.
  • Compatibility: Confirm fit against your unit’s parts diagram or specification sheet before purchase.
  • Related documentation: Installation Instructions, Specification Sheet, Maintenance Manual, Freeze Protection Instructions (see product literature).

This part is intended for use as a service replacement. Installation requires partial disassembly of the PVB and should be performed by a qualified technician or licensed plumber. After replacement, follow the Series 765 maintenance and testing procedures to verify correct operation. If you are unsure about compatibility or installation steps, consult the factory literature or a local backflow specialist.

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Frequently Asked Questions

What Febco models and sizes does part 630-106 fit?
Part 630-106 is the OEM check spring for Febco Series 765 pressure vacuum breakers in 1" and 1-1/4" sizes. Verify with your unit’s parts diagram.
Can a homeowner safely install the 630-106 spring themselves?
This spring is inside the PVB check assembly and replacement requires partial disassembly. Have a licensed plumber or qualified technician perform installation and testing.
How do I confirm 630-106 is the correct replacement for my unit?
Match the part number 630-106 to the Series 765 parts list or specification sheet and confirm the nominal unit size before ordering.