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Brass vacuum breaker with threaded FNPT connection, cylindrical body and top vent cap

Apollo

Apollo 38LF10701 Vacuum Breaker 1-1/2 in FNPT 125 psi

SKU CH-KP1D-Y6XBK

A lead-free bronze vacuum breaker with silicone seal rated to 125 psi and 180 °F, meeting ASSE 1001-2008 and NSF/ANSI 372 standards

  • TypePipes, Valves & Fittings
  • Prevents backflow contamination with ASSE 1001-2008 certified vacuum breaker
  • Lead-free bronze construction meets NSF/ANSI 372 drinking-water standards
  • Silicone seal rated for 180 °F continuous service
  • 125 psi maximum pressure handles demanding commercial systems
  • 1-1/2 in FNPT connection installs directly on standard piping

1-1/2 in FNPT Vacuum Breaker

The Apollo 38LF10701 vacuum breaker installs on 1-1/2 inch FNPT connections to prevent back-siphonage in potable-water systems. Lead-free bronze construction meets NSF/ANSI 372 for low-lead compliance. Silicone seals operate up to 180 degrees F and 125 psi. ASSE 1001-2008 certification confirms performance for backflow prevention.

Replaces worn or non-compliant devices

Swap out older brass units that no longer seal or that exceed current lead limits. The upgrade is worth it when local code requires ASSE 1001-2008 listed hardware or when a system test shows leakage at the atmospheric vent. No electrical or control wiring is involved.

Handles residential and light-commercial flows

The 1-1/2 inch port passes typical fixture-group demand without excessive pressure drop. Headroom exists for intermittent peaks within the 125 psi rating. Continuous exposure above 180 degrees F or sustained pressure beyond 125 psi exceeds the listed limits and requires a different valve class.

Highlights

  • Prevents backflow contamination with ASSE 1001-2008 certified vacuum breaker
  • Lead-free bronze construction meets NSF/ANSI 372 drinking-water standards
  • Silicone seal rated for 180 °F continuous service
  • 125 psi maximum pressure handles demanding commercial systems
  • 1-1/2 in FNPT connection installs directly on standard piping

Specifications

BrandAPOLLO VALVES
TypePipes, Valves & Fittings

Questions about this item

Will the 1-1/2 in FNPT threads match my existing piping without adapters?

The vacuum breaker uses a 1-1/2 in FNPT connection, so it threads directly onto a matching male NPT pipe end. No adapter is needed if your piping is the same size and thread type.

What is the common installation mistake with the silicone seal on this vacuum breaker?

Over-tightening the FNPT joint can distort the silicone seal and cause leaks. Tighten by hand plus one to two turns with a wrench, and avoid pipe dope on the seal face.

How often should the silicone seal be inspected or replaced on the 38LF10701?

Inspect the silicone seal annually for cracking or hardening, especially after exposure to 180 °F water. Replace the seal if it shows wear to maintain ASSE 1001 backflow protection.

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