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White PVC in-line check valve with stainless steel spring

Legend Valve

Legend Valve 203-107 T-611 PVC check valve 1-1/2

SKU CH-S1Z1-GTND8

A 1-1/2 inch PVC in-line check valve with a stainless steel spring prevents backflow in plumbing systems

  • 1-1/2 in. PVC check valve fits standard plumbing lines
  • 1/2 lb stainless steel spring ensures positive sealing
  • T-611 design provides reliable in-line flow control
  • Legend Valve construction delivers durable corrosion resistance
  • California Prop 65 warning discloses chemical safety information

1-1/2 Inch PVC In-Line Check Valve

The Legend Valve 203-107 T-611 is a 1-1/2 inch PVC in-line check valve designed for plumbing systems requiring backflow prevention. It features a 1/2 lb stainless steel spring to assist with positive sealing. This new valve suits residential and commercial piping installations.

Sustained Flow Sealing Behavior

Under continuous pressure the stainless steel spring maintains consistent force against the seat to prevent reverse flow without chatter. The PVC body resists corrosion from water and common chemical exposure over long service periods. It remains closed until upstream pressure overcomes the spring tension.

Half-Pound Spring Cracking Pressure

The 1/2 lb spring determines the minimum upstream pressure required to open the valve and allow forward flow. Systems with very low head pressure may not generate enough force to unseat the disc reliably. Buyers needing a lower cracking pressure for gravity-fed or low-pressure lines should verify compatibility before purchase.

Highlights

  • 1-1/2 in. PVC check valve fits standard plumbing lines
  • 1/2 lb stainless steel spring ensures positive sealing
  • T-611 design provides reliable in-line flow control
  • Legend Valve construction delivers durable corrosion resistance
  • California Prop 65 warning discloses chemical safety information

Specifications

BrandLEGEND VALVE

Questions about this item

Does the 203-107 T-611 check valve generate noise or heat when water flows through it continuously?

The valve operates passively with a 1/2 lb stainless steel spring, so it produces no heat and only normal flow noise when open.

What pipe size and fitting type must I already have to install the 1-1/2 inch T-611 valve?

You need 1-1/2 inch PVC pipe and solvent-weld couplings or threaded adapters that match the valve's socket ends.

Will the 203-107 T-611 work alongside older metal check valves already in my plumbing system?

Yes, the PVC body and stainless spring are compatible with existing metal valves; use proper transition fittings to join dissimilar materials.

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