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Main product image of 18" Length, 3/4" FIP Swivel Inlet x 3/4" CPVC Socket Valve w/ 3/8" Compression Thermal Expansion Relief Valve (No Lead)
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18" Length, 3/4" FIP Swivel Inlet x 3/4" CPVC Socket Valve w/ 3/8" Compression Thermal Expansion Relief Valve (No Lead)

SKU:
633-CG18FRV
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18" Length, 3/4" FIP Swivel Inlet x 3/4" CPVC Socket Valve w/ 3/8" Compression Thermal Expansion Relief Valve (No Lead)
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633-CG18FRV has been discontinued
Discontinued April 2, 2026
This product was discontinued by the manufacturer.
Connection Type: 
FIP Swivel x CPVC Socket
FIP Swivel x CPVC SocketFIP Swivel x PEX CrimpFIP Swivel x ProPEX

Product Highlights

–
Product Highlight: Length
18"
Product Highlight: Connection Type
FIP Swivel x CPVC Socket Connection
Product Highlight: Inlet Size
3/4"
Product Highlight: Inlet Type
FIP Swivel
Product Highlight: Outlet Size
3/4"
Product Highlight: Outlet Type
CPVC Socket

Description

–
Sioux Chief 633 Series water heater connectors with thermal expansion relief valve. 18" Length, 3/4" FIP Swivel Inlet x 3/4" CPVC Socket Valve w/ 3/8" Compression Thermal Expansion Relief Valve (No Lead).

This product shall be used in plumbing systems for safe distribution of hot or cold water. Thermal expansion relief valve shall discharge water and excess pressure as needed to prevent explosions or other damage to the water heater or surrounding structure. Discharged water shall be directed through an outlet line to the floor drain or water heater pan. Connectors shall be used for fluid communication with plumbing devices and fixtures. Valve connections shall conform to appropriate standards including ASTM fitting end specifications.

Overview:
  • Valve: SCC/DZR resistant brass, PTFE seats, stainless steel springs, EPDM o-rings and relief seat, anodized aluminum handle
  • Tube: 3/4" Nom. copper tube
  • Swivel Nut: C360 brass with EPDM gasket
  • FIP swivel nut with gasket is a dielectric fitting

    Features:
    • Inlet Connection: 3/4" FIP swivel
    • Valve Outlet Connection: 3/4" CPVC socket
    • Thermal Relief Connection: 3/8" Compression
  • Specs

    –
    Length:

    18"

    Connection Type:

    FIP Swivel x CPVC Socket

    Type:

    Straight

    Inlet Size:

    3/4"

    Inlet Type:

    FIP Swivel

    Outlet Size:

    3/4"

    Outlet Type:

    CPVC Socket

    Relief Valve:

    3/8"

    Connection Method:

    Compression

    Length (Inches):

    18"

    Material:

    Copper

    Brass

    Max Temp (F):

    180°F

    Lead Free:

    Yes

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