Parker 73212BN3SN00 Solenoid Valve 3/8 Inch Npt

Product Description

The PARKER 73212BN3SN00 is a normally closed, direct-acting solenoid valve designed for fluid control in industrial and commercial plumbing, HVAC, and process systems. The valve body is brass with an NBR (Buna-N) elastomer seal and a 3/8-inch NPT port. It accepts a wide range of control voltages including 12 volts DC, 24 volts DC, 24/60 volts AC, 120 volts DC, 120/60 to 110/50 volts AC, and 240/60 to 220/50 volts AC, making it adaptable to a broad set of control circuits. Maximum working pressure is 300 psi. An integrated coil is required for complete valve operation and must be ordered separately if not already on hand.

This valve is suited for residential and commercial installations where automatic shut-off or flow control is needed on water, air, or compatible fluid lines. Typical applications include HVAC condensate or water supply lines, plumbing isolation, and light industrial process piping. The normally closed configuration means the valve defaults to shut when de-energized, which is the preferred fail-safe position in most flow-control applications. Licensed plumbers, HVAC technicians, and industrial maintenance technicians are the primary installers of this valve series.

Key Features

• Normally closed (NC) unactuated state — valve shuts off flow on power loss
• Brass body construction for compatibility with water, air, and many liquid media
• NBR seal material rated for general-purpose fluid service
• Multi-voltage compatibility: 12Vdc, 24Vdc, 24/60Vac, 120Vdc, 120/60 to 110/50Vac, 240/60 to 220/50Vac
• 300 psi maximum working pressure with a 5 psi minimum operating pressure differential
• Cv factor of 2.4 through a 1/2-inch orifice for predictable flow sizing
• CSA Certified, UL Listed, and NEMA 4X rated enclosure for wet or washdown environments

Compatibility

Designed as an OEM-style replacement or new-installation solenoid valve for 3/8-inch NPT piping systems requiring a normally closed, brass-body valve with NBR seals. Confirm coil voltage matches the control circuit before installation; an integrated coil is required for complete valve operation and is not included.

Installation Notes

Installation should be performed by a licensed plumber or qualified HVAC or industrial technician in accordance with applicable local codes and IPC guidelines. De-energize the control circuit and shut off system pressure before removing or installing the valve. Apply thread sealant appropriate for the media being controlled and do not over-torque the NPT connections into the valve body. Verify that the system operating pressure differential remains at or above 5 psi for reliable valve actuation.