We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Bronze adjustable relief valve with test lever, half-inch threaded connections

Apollo

Apollo 1650101 Adjustable Relief Valve 1/2 In 60 psi

SKU CH-91QZ-Y1ZY1

Adjustable relief valve with 1/2 inch NPT connections, factory set at 60 psi and adjustable from 50 to 250 psi for agricultural sprayers and industrial systems

  • Adjustable pressure protects equipment from over-pressurisation
  • Factory-set at 60 psi for immediate installation
  • Cast bronze body resists corrosion in harsh environments
  • Operates reliably from 0 to 200 degrees Fahrenheit
  • Stainless steel spring maintains consistent relief performance

Apollo 1650101 Adjustable Relief Valve

The Apollo 1650101 is a cast bronze adjustable relief valve designed for agricultural sprayers and commercial or industrial pressurised systems. It features a 1/2 inch MNPT inlet and a 1/2 inch FNPT outlet. The valve operates within a pressure range of 50 to 250 psi and a temperature range of 0 to 200 degrees F. A test lever is included for manual operation checks.

Check system pressure and thread compatibility

Verify that your system operating pressure falls within the 50 to 250 psi adjustable range and that the factory set point of 60 psi suits the application. Confirm the piping uses 1/2 inch NPT threads matching the MNPT inlet and FNPT outlet. Ensure the fluid media is compatible with Buna-N disc and seat materials and that temperatures remain within the 0 to 200 degrees F limit. The valve is not rated for BtuH calculations.

Cast bronze body with stainless steel spring

The cast bronze body provides corrosion resistance for demanding environments. A stainless steel spring maintains consistent pressure response across the adjustable range. The Buna-N disc and seat offer reliable sealing for water and compatible fluids. The included test lever allows periodic functional testing without removing the valve from the line. The 4 1/8 inch overall height fits standard plumbing layouts.

Highlights

  • Adjustable pressure protects equipment from over-pressurisation
  • Factory-set at 60 psi for immediate installation
  • Cast bronze body resists corrosion in harsh environments
  • Operates reliably from 0 to 200 degrees Fahrenheit
  • Stainless steel spring maintains consistent relief performance

Specifications

BrandAPOLLO VALVES

Questions about this item

What comes in the box and do I need any extra fittings for the 1/2 in MNPT inlet?

The valve ships with the adjustable relief body, a Buna-N disc, stainless-steel spring and a test lever already fitted. The 1/2 in MNPT inlet and FNPT outlet mate directly to matching pipe threads, so no separate adapters are required unless your piping uses a different thread type.

Should I choose the 60 psi factory setting or adjust within the 50 to 250 psi range?

The unit arrives preset at 60 psi. If your system operates at a different pressure, use the adjustment screw to set any value between 50 and 250 psi before installation; otherwise leave it at the factory setting.

What does the 60 psi factory set pressure mean once the valve is installed in a sprayer system?

At 60 psi the valve will begin to open and relieve excess pressure, protecting the sprayer or pressurised system. The Buna-N seat and stainless spring maintain consistent reseating up to 200 °F, so the relief point stays stable during normal operation.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.