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Stainless steel inline ball cone check valve with FNPT connections

Apollo

Apollo 6210601 1-1/4" FNPT Stainless Steel Check Valve

SKU CH-YQM1-TSHSF

Stainless steel inline check valve with ball-cone mechanism, 0.5 psi cracking pressure, EPDM seals, rated 33 to 180 °F and 400 psi

  • Size1 1/4"
  • TypeOther
  • Stainless steel body resists corrosion for long service life
  • Ball cone mechanism provides reliable inline flow control
  • FNPT connections allow direct pipe threading without extra fittings
  • Operates from 33 to 180 degrees F for versatile installations
  • Handles up to 400 psi water pressure in demanding systems

Apollo 6210601 check valve

The Apollo 6210601 is a 1-1/4 inch FNPT stainless steel check valve designed for plumbing systems that require reliable backflow prevention. Its inline ball cone mechanism and EPDM seals suit horizontal or vertical mounting in residential and light commercial installations.

Replaces worn swing or lift check valves

When an existing check valve leaks, chatters or fails to close at low pressure, this unit’s 0.5 psi cracking pressure and stainless body provide a tighter seal and longer service life. The upgrade is worth it when the line sees frequent pressure cycles or when the fluid temperature ranges between 33 and 180 degrees F.

Sustained pressure and temperature performance

The valve holds up to 400 psi water pressure continuously across the full 33 to 180 degree F range without seat deformation or spring fatigue. Stainless construction resists corrosion during extended exposure, so flow direction stays controlled in constant-duty applications.

Highlights

  • Stainless steel body resists corrosion for long service life
  • Ball cone mechanism provides reliable inline flow control
  • FNPT connections allow direct pipe threading without extra fittings
  • Operates from 33 to 180 degrees F for versatile installations
  • Handles up to 400 psi water pressure in demanding systems

Specifications

BrandAPOLLO
Size1 1/4"
TypeOther

Questions about this item

What size female NPT threads does the Apollo 6210601 check valve use for pipe connections?

The valve has 1-1/4 inch FNPT threads on both ends for inline installation with matching male NPT pipe fittings.

How should the valve be oriented during installation, and what is the common mistake?

It can be mounted horizontally or vertically, but the flow arrow on the body must point in the actual flow direction; installing it backwards stops flow entirely.

When should the EPDM seal be inspected or replaced given the temperature and pressure limits?

Inspect the EPDM seal if the system regularly cycles near 180 °F or 400 psi, as sustained exposure near those limits accelerates seal hardening and leakage.

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