Angle valve ARCO A-80 VITAQ 1/2 x 3/8, no nut (model NOV77MAC)

ARCO A-80 VITAQ angle valve with a 1/2" inlet and 3/8" outlet is a compact right-angle shutoff designed for plumbing installations. The valve provides flow control between the water supply and fixtures such as faucets, mixers, and appliances. Supplied without a mounting nut, this model is intended for use where a separate connection fitting or integrated nut is already present or when replacement of the valve body only is required.

Advantages

The valve features a space-saving right-angle design that facilitates installation in confined spaces behind sinks and toilets. Its standardized 1/2" to 3/8" connections match common supply lines and flexible hoses, enabling straightforward replacement or retrofit. Delivered without a nut, the unit is lightweight and suitable for installers who prefer to use existing fittings or choose a specific nut type for compatibility. The construction is intended to provide reliable shutoff for routine maintenance and repair tasks.

Suitable for

• Domestic and commercial bathroom and kitchen supply lines
• Replacement of existing angle shutoff valves with 1/2" inlet and 3/8" outlet
• Plumbing installations where a separate mounting nut or adapter is used
• Maintenance and repair jobs requiring a compact right-angle valve

Key specifications

• Connection sizes: 1/2" inlet → 3/8" outlet
• Orientation: right-angle (90°) shutoff
• Supply type: water
• Delivery condition: supplied without mounting nut
• Application: shutoff valve for fixtures and appliances

How to use

Shut off the main water supply before installation. Remove the old valve if replacing an existing unit, taking care to drain residual water. Fit the ARCO A-80 VITAQ valve to the 1/2" supply thread and secure with a compatible mounting nut or adapter (not supplied). Connect the 3/8" outlet to the fixture flexible hose and tighten connections to the manufacturer's recommended torque to ensure a watertight seal. After installation, open the main supply and check for leaks at all joints, operating the valve to confirm smooth shutoff and flow control.

Usage recommendations

Use appropriate thread sealant or tape compatible with potable water systems when required, and choose a mounting nut or adapter that matches the existing inlet fitting. For installations in confined spaces, verify clearance for wrench access. If corrosion or wear is present on adjoining fittings, replace those components to ensure a reliable seal and avoid future leaks.