Parker 7121KBN2SV00 Solenoid Valve 1/4 in Npt Brass

Product Description

The PARKER 7121KBN2SV00 is a direct-acting, normally closed solenoid valve designed for precise fluid and gas flow control in industrial, HVAC, refrigeration, and process piping applications. The valve body is constructed of brass with an FKM fluorocarbon seal, making it suitable for a range of compatible media where chemical resistance and durability are required. It accepts multiple coil voltages — 12Vdc, 24Vdc, 24/60Vac, 120Vdc, 120/60 to 110/50Vac, and 240/60 to 220/50Vac — providing installation flexibility across international supply voltages. A Cv factor of 0.76 and a 13/64-inch orifice support controlled flow rates at system pressures up to 80 psi. Licensed HVAC technicians, pipefitters, and industrial maintenance techs are the primary installers.

This valve suits residential and light commercial HVAC systems, refrigeration circuits, compressed air lines, and general fluid control applications where a 1/4-inch NPT port size and a normally closed fail-safe state are specified. The zero-minimum operating pressure differential rating means the valve can open and close reliably without relying on line pressure to actuate, making it appropriate for low-pressure or gravity-fed systems. The wide voltage compatibility makes it a practical choice for both domestic and export equipment builds.

Key Features

• Direct-acting design operates at zero minimum pressure differential — no line pressure required to actuate
• Normally closed (NC) fail-safe state — valve closes when de-energized
• Brass body with FKM fluorocarbon seals for chemical and heat resistance up to 185 degrees F
• Multi-voltage coil compatibility: 12Vdc, 24Vdc, 24/60Vac, 120Vdc, 120/60 to 110/50Vac, 240/60 to 220/50Vac
• 1/4-inch NPT port with a Cv factor of 0.76 and 13/64-inch orifice for controlled flow
• CSA Certified, UL Listed, and NEMA 4X rated enclosure for wet and washdown environments

Compatibility

Designed as a direct-acting normally closed solenoid valve with 1/4-inch NPT connections, suitable for use in HVAC, refrigeration, compressed air, and process fluid control systems where brass construction and FKM seals are compatible with the media. Note that this valve requires an integrated coil for complete assembly — confirm coil voltage before ordering.

Installation Notes

Installation should be performed by a licensed HVAC technician, pipefitter, or qualified industrial maintenance technician in accordance with applicable local codes. De-energize the system and relieve all line pressure before removing or installing the valve. NPT threaded connections require appropriate thread sealant rated for the media and pressure involved — do not overtighten brass fittings. Verify coil voltage matches the available supply voltage before energizing.