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Compact aluminum solenoid valve with 3/8 inch NPT ports and 18 inch wire leads

Red Hat

Red Hat 8040H008 3/8 in 120V AC Solenoid Valve Trap

SKU CH-HWG4-PE7N8 MPN 8040H008

A 120V AC normally closed solenoid valve with a 3/8 in NPTF connection and 1.2 Cv flow coefficient for gas pilot control

  • TypeDrain Components
  • Normally closed design prevents unintended fuel flow
  • Direct-acting operation responds without minimum pressure
  • Aluminum body with NBR seals resists corrosion
  • 120 V AC coil rated for 50 Hz and 60 Hz
  • Cv 1.2 delivers 64,400 BtuH gas capacity

Solenoid Valve for Gas Burners

The ASCO 8040H008 is a normally closed, direct-acting 2-way solenoid valve built for gas pilot control on commercial and industrial burners. Its aluminum body and NBR seals handle fuel oil and gas with a maximum gas capacity of 64,400 BtuH and a flow coefficient of 1.2. It operates on a 120V AC coil rated at 6.1 W with Class F insulation, suitable for 50 Hz and 60 Hz supplies. The valve is rated for indoor and outdoor use across an ambient range from -40°F to 125°F.

Replaces Manual or Failing Pilot Valves

This valve upgrades systems that rely on manual shut-off or older pilot valves prone to leakage or slow response. The direct-acting design opens without minimum pressure differential, making it effective at 0 psi up to 15 psi for air, inert gas, and water. The jump is worth it when burner sequencing demands reliable, electrically actuated shut-off with a 5/16 in orifice and 3/8 in NPTF connections. It mounts horizontally or vertically to fit existing piping orientations.

Check Voltage, Pressure, and Pipe Threads

Verify the control circuit supplies 120V AC at 50 Hz or 60 Hz before ordering. Confirm the system operating pressure stays within the 0 to 15 psi differential range for the intended media. Ensure the 3/8 in NPTF thread matches the inlet and outlet ports on the burner manifold. The coil includes 18 in leads without a junction box, so plan for a suitable watertight enclosure if the installation requires one.

Highlights

  • Normally closed design prevents unintended fuel flow
  • Direct-acting operation responds without minimum pressure
  • Aluminum body with NBR seals resists corrosion
  • 120 V AC coil rated for 50 Hz and 60 Hz
  • Cv 1.2 delivers 64,400 BtuH gas capacity

Specifications

TypeDrain Components
BrandRed Hat
Model8040H008

Questions about this item

What pipe size and thread type does the 8040H008 valve use for inlet and outlet?

The valve has 3/8 in NPTF connections with NPT threads on both inlet and outlet.

How should the coil leads be connected during installation, and what common mistake should be avoided?

Connect the 18 in leads to a 120V AC supply at 50 or 60 Hz; do not apply voltage without the coil mounted on the valve or the coil will overheat.

Which seal material is used and what temperature range does it support for future replacement planning?

NBR (Buna-N) seals are fitted and rated for an ambient range of -40°F to 125°F.

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