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Stainless steel inline ball cone check valve with FNPT ends

Apollo

Apollo 6210201 3/8" FNPT Stainless Steel Ball Cone Spring Check Valve

SKU CH-GTRA-EE225

A stainless steel inline ball-cone check valve with FNPT connections, 0.5 psi cracking pressure and 400 psi water rating

  • Prevents backflow with inline ball-cone mechanism
  • Opens at low .5 psi cracking pressure
  • Handles water up to 400 psi and steam to 150 psi WSP
  • Operates from 33 °F to 180 °F in horizontal or vertical mounting
  • 316 stainless steel spring and RPTFE seat resist corrosion

Apollo 3/8" FNPT Check Valve

This Apollo 6210201 check valve uses a stainless steel body with an inline ball cone mechanism. It is designed for plumbing systems requiring reliable backflow prevention. The valve suits installers and maintenance teams working with water or steam lines. Its FNPT connections fit standard 3/8 inch female pipe threads.

Spring-assisted closure at .5 psi cracking pressure

The spring-loaded ball cone opens at a low .5 psi cracking pressure and closes automatically when flow stops or reverses. This replaces swing or lift check valves that need higher backpressure or gravity to seat fully. The upgrade is worth it when horizontal or vertical mounting flexibility is required and when a tight seal at low differential pressure matters.

EPDM seals and RPTFE seat handle 33 to 180 degrees F

The valve operates between 33 and 180 degrees F with a maximum water pressure of 400 psi and steam pressure of 150 psi WSP. It needs compatible piping threaded for 3/8 inch FNPT on both ends. The 316 stainless steel spring and RPTFE seat free the system from corrosion concerns in aggressive water or steam service.

Highlights

  • Prevents backflow with inline ball-cone mechanism
  • Opens at low .5 psi cracking pressure
  • Handles water up to 400 psi and steam to 150 psi WSP
  • Operates from 33 °F to 180 °F in horizontal or vertical mounting
  • 316 stainless steel spring and RPTFE seat resist corrosion

Specifications

BrandAPOLLO VALVES

Questions about this item

What size and thread type does the 3/8" FNPT valve require for piping?

The valve uses a 3/8 inch FNPT x FNPT connection, so both ends need matching female National Pipe Taper threads on the pipe or fitting.

Which mounting orientations are approved for the inline ball cone mechanism?

The valve is rated for both horizontal and vertical installation; the spring-loaded ball cone operates correctly in either position.

When should the EPDM seal and RPTFE seat be inspected or replaced?

Inspect seals if leakage appears or after prolonged exposure near the 180 °F maximum temperature or 400 psi water pressure limits.

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