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Bronze inline ball cone check valve with FNPT connections

Apollo

Apollo 6110501 1" FNPT Bronze Ball Cone Spring Check Valve

SKU CH-A9Y8-WAPN6

Inline bronze check valve with a ball-cone mechanism, EPDM seals and stainless-steel spring, rated for 400 psi water and 125 psi steam at up to 180 °F

  • Prevents backflow with inline ball-cone mechanism
  • Opens at low .5 psi cracking pressure
  • Handles 400 psi water and 125 psi steam
  • EPDM seals rated 33 °F to 180 °F
  • Bronze body with stainless-steel spring for durability

What this valve is and who needs it

The Apollo 6110501 is a 1-inch FNPT bronze inline ball-cone check valve designed for plumbing systems that require automatic back-flow prevention. It suits installers working with water lines up to 400 psi or low-pressure steam lines up to 125 psi WSP where a compact, corrosion-resistant bronze body is specified.

Thermals noise and power draw in normal use

The valve operates passively with a 0.5 psi cracking pressure, so it adds no electrical load, generates no heat and produces no audible noise during flow. Bronze construction and an EPDM seal handle fluid temperatures from 33 to 180 degrees Fahrenheit, while the stainless-steel spring and RPTFE seat maintain sealing integrity across that range without external power.

How it fits into a build

Female NPT threads on both ends allow direct connection to standard 1-inch threaded pipe in either horizontal or vertical runs, provided the flow arrow matches system direction. The inline ball-cone design keeps the flow path straight, minimising pressure drop and freeing up space that a swing-check mechanism would otherwise occupy in tight mechanical rooms.

Highlights

  • Prevents backflow with inline ball-cone mechanism
  • Opens at low .5 psi cracking pressure
  • Handles 400 psi water and 125 psi steam
  • EPDM seals rated 33 °F to 180 °F
  • Bronze body with stainless-steel spring for durability

Specifications

BrandAPOLLO VALVES

Questions about this item

How do I install the 1" FNPT bronze check valve and which step is most often done incorrectly?

Thread the valve onto 1" FNPT piping using pipe sealant on male threads only, orient the flow arrow in the direction of fluid travel, and tighten to a snug fit; the step most often missed is confirming the arrow matches actual flow direction before final tightening.

What maintenance or replacement will the EPDM-sealed, RPTFE-seated check valve need over time?

Inspect the EPDM seal and RPTFE seat annually for wear or debris; replace the valve if the seal hardens, the seat shows pitting, or the stainless-steel spring no longer returns the ball cone to a positive shut-off at 0.5 psi cracking pressure.

At what pressure limit will the valve show its constraint first during sustained 180 °F water service?

The 400 psi maximum water-pressure rating is the first limit reached; sustained operation above this pressure at 180 °F can deform the bronze body or unseat the RPTFE seat, so system pressure must stay at or below 400 psi.

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