Parker DC601-4 Brass Drain Cock Shutoff Valve 1/4 in

Product Description

The PARKER DC601-4 is a brass drain cock shutoff valve designed for use in plumbing and fluid control systems where a compact, reliable manual drain point is required. It features a 1/4-18 NPTF male pipe thread connection and is rated for up to 150 psi working pressure. The valve allows a technician to drain fluid from a line, tank, or system quickly without disconnecting fittings. Its all-brass body resists corrosion in water and light hydrocarbon service. Plumbers, pipefitters, and HVAC technicians typically install this type of valve at low points in pressurized systems to facilitate controlled drainage and winterization procedures.

This drain cock is suited for residential and light commercial plumbing, hydronic heating systems, compressed air lines, and similar fluid systems where a small-bore manual drain valve is called for. The 1/4-18 NPTF thread engages directly with standard pipe fittings, making it a straightforward replacement or new-installation component at drain ports and petcock locations throughout a system.

Key Features

• Brass body construction for corrosion resistance in water and fluid service
• 1/4-18 NPTF male pipe thread for leak-free tapered thread engagement
• 150 psi maximum working pressure rating
• Minimum working temperature of 32 degrees F
• Compact form factor suited for low-point drain applications

Compatibility

Designed as an OEM-style replacement or new-installation drain cock for residential and light commercial plumbing, hydronic, and compressed air systems using standard 1/4-18 NPTF pipe connections.

Installation Notes

Installation is performed by a licensed plumber or qualified pipefitter. Depressurize and isolate the system completely before removing any existing fitting or installing this valve. Apply thread sealant or PTFE tape appropriate for the service fluid to the male threads before engagement. Follow applicable IPC and local plumbing code requirements for drain valve placement and accessibility.