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Brass solenoid valve body, half-inch ports, normally closed, coil not included

Dayton

Dayton 1A577 Brass Solenoid Valve 1/2 in Normally Closed

SKU CH-9JYM-GJ6MM MPN 1A577

Brass solenoid valve body, 1/2 in normally closed, 5/8 in orifice, 3.6 Cv, up to 150 psi air or water and 180 °F fluid temperature

  • Product typeDrain Components
  • Normally closed design prevents flow until energised
  • Brass body resists corrosion in water and air lines
  • 6 Cv rating delivers strong flow through 1/2 in port
  • Operates from 5 psi minimum up to 150 psi differential
  • Rated for fluid temperatures up to 180 °F

Brass Solenoid Valve 1/2 in

The Dayton 1A577 is a two-way, normally closed brass valve body designed for drain and trap installations. It accepts a 1/2 inch pipe connection and operates without a coil, allowing the installer to select a compatible actuator for the specific voltage and control scheme required.

Flow Capacity and Pressure Limits

The valve offers a Cv of 3.6 through a 5/8 inch orifice, suitable for moderate water or air/inert gas flow in drainage systems. It requires a minimum 5 psi pressure differential to open and handles up to 150 psi for both fluids, with a maximum fluid temperature of 180 Degrees F.

Brass Body and Mounting Implications

The brass construction provides corrosion resistance for indoor and outdoor environments, while the 1/2 inch nominal pipe size fits standard plumbing threads. As a less-coil body, it demands a separate solenoid coil purchase and wiring, so buyers needing a complete ready-to-install unit must source the coil separately.

How it compares

Measured against everything we stock in Drain Stoppers, Strainers & Traps, at today’s prices. Recalculated every night.

Price $78.99
Pricier than about 72% of the 4,240 comparable items (median $31.99).

Specifications

Product
Brand nameDayton
Model name1A577
Product typeDrain Components

Questions about this item

Will this 1/2 in brass valve thread onto my existing 1/2 in copper piping without adapters?

The valve body uses a 1/2 in nominal pipe size thread, so it matches standard 1/2 in NPT fittings; no adapter is required for like-sized copper or steel pipe.

How can I verify the coil is actuating the plunger once the valve is installed and pressurised?

Apply the rated coil voltage and listen for a distinct click; then confirm flow by opening a downstream tap — water should pass at the 3.6 Cv rate when energised and stop cleanly when power is removed.

Does the box include a coil, connector or mounting hardware, or must I order them separately?

The listing specifies the valve body only; a compatible coil, electrical connector and any brackets must be purchased separately.

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