Webstone Isolation Flanges

Webstone Isolation Flanges are designed for residential and commercial use with all 2 bolt flanged circulator pumps. The forged brass body and flange provide strength and versatility for any application where a pipe and flange meet. This approved Webstone valve features a solid hard chrome plated brass ball with reinforced Teflon seats and a blowout proof stem sealed with Teflon and an adjustable packing gland. Additional wing style 'T' handle included with mounting nuts and bolts. Webstone Isolation Flanges with Drain are designed for residential and commercial use with all 2 bolt flanged circulator pumps. The unitary construction of the brass body and flange provide strength and versatility for any application where a pipe and flange meet. This valve is the only choice to use in a closed system where a large port drain and fill valve is required.Additional wing style 'T' handle included with mounting nuts and bolts.

Manuals - Webstone Isolation Flanges


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  • 1/2" IPS Isolator Flange View Specs
    • SKU: 40402
    • Brand: Webstone

    $13.95 / each

    In Stock! (136 Available) Ships in 24-48 Hrs
  • 3/4" IPS Isolator Flange View Specs
    • SKU: 40403
    • Brand: Webstone

    $15.25 / each

    $146.50 / box
    10 x $14.65

    In Stock! (603 Available) Ships in 24-48 Hrs
  • 1" IPS Isolator Flange View Specs
    • SKU: 40404
    • Brand: Webstone

    $18.35 / each

    $176.50 / box
    10 x $17.65

    In Stock! (551 Available) Ships in 24-48 Hrs
  • 1-1/4" IPS Isolator Flange View Specs
    • SKU: 40405
    • Brand: Webstone

    $21.55 / each

    $205.50 / box
    10 x $20.55

    In Stock! (519 Available) Ships in 24-48 Hrs
  • 1-1/2" IPS Isolator Flange View Specs
    • SKU: 40406
    • Brand: Webstone

    $33.45 / each

    $323.50 / box
    10 x $32.35

    In Stock! (506 Available) Ships in 24-48 Hrs
  • 1" IPS Isolator - High Velocity View Specs
    • SKU: 40404HV
    • Brand: Webstone

    $19.95 / each

    $191.50 / box
    10 x $19.15

    In Stock! (513 Available) Ships in 24-48 Hrs
  • 1-1/4" IPS Isolator - High Velocity View Specs
    • SKU: 40405HV
    • Brand: Webstone

    $22.95 / each

    $109.75 / box
    5 x $21.95

    In Stock! (489 Available) Ships in 24-48 Hrs
  • 1-1/2" IPS Isolator - High Velocity (Pair of 2) View Specs
    • SKU: 40406HV
    • Brand: Webstone

    $66.95 / each

    In Stock! (500 Available) Ships in 24-48 Hrs
  • 2" IPS Isolator - High Velocity View Specs
    • SKU: 40407HV
    • Brand: Webstone

    $46.25 / each

    In Stock! (441 Available) Ships in 24-48 Hrs
  • 1/2" Sweat Isolator Flange View Specs
    • SKU: 50402
    • Brand: Webstone

    $13.95 / each

    $133.50 / box
    10 x $13.35

    In Stock! (463 Available) Ships in 24-48 Hrs
  • 3/4" Sweat Isolator Flange View Specs
    • SKU: 50403
    • Brand: Webstone

    $15.25 / each

    $146.50 / box
    10 x $14.65

    In Stock! (550 Available) Ships in 24-48 Hrs
  • 1" Sweat Isolator Flange View Specs
    • SKU: 50404
    • Brand: Webstone

    $18.35 / each

    $176.50 / box
    10 x $17.65

    In Stock! (564 Available) Ships in 24-48 Hrs
  • 1-1/4" Sweat Isolator Flange View Specs
    • SKU: 50405
    • Brand: Webstone

    $21.65 / each

    $207.50 / box
    10 x $20.75

    In Stock! (548 Available) Ships in 24-48 Hrs
  • 1-1/2" Sweat Isolator Flange View Specs
    • SKU: 50406
    • Brand: Webstone

    $33.45 / each

    $323.50 / box
    10 x $32.35

    In Stock! (524 Available) Ships in 24-48 Hrs
  • 1" Sweat Isolator Flange - High Velocity View Specs
    • SKU: 50404HV
    • Brand: Webstone

    $19.95 / each

    $191.50 / box
    10 x $19.15

    In Stock! (508 Available) Ships in 24-48 Hrs
  • 1-1/4" Sweat Isolator Flange - High Velocity View Specs
    • SKU: 50405HV
    • Brand: Webstone

    $23.55 / each

    In Stock! (510 Available) Ships in 24-48 Hrs
  • 1-1/2" Sweat Isolator Flange - High Velocity View Specs
    • SKU: 50406HV
    • Brand: Webstone

    $33.45 / each

    $323.50 / box
    10 x $32.35

    In Stock! (508 Available) Ships in 24-48 Hrs
  • 2" Sweat Isolator Flange - High Velocity View Specs
    • SKU: 50407HV
    • Brand: Webstone

    $46.95 / each

    In Stock! (333 Available) Ships in 24-48 Hrs
  • 3/4" IPS Isolator Flange with Drain (Pair) View Specs
    • SKU: 40413
    • Brand: Webstone

    $45.55 / each

    $218.75 / box
    5 x $43.75

    In Stock! (532 Available) Ships in 24-48 Hrs
  • 1" IPS Isolator Flange with Drain (Pair) View Specs
    • SKU: 40414
    • Brand: Webstone

    $55.95 / each

    $269.75 / box
    5 x $53.95

    In Stock! (509 Available) Ships in 24-48 Hrs