The best 1-inch ball valve with drain depends on the pipe connection you need: WiseWater and Midline offer PEX options, while CMI and Midline have compression models. For a three-way adjustable drain path, consider the Midline 928D223. Compare connection type and listed features before choosing; valves with different connection styles are not direct substitutes.
| Product | Best For | Connection |
|---|---|---|
| WiseWater PEX Ball Valve | PEX installation with included crimp rings | PEX |
| Midline 928D223 | Adjustable drain direction | 1-inch SWT |
| CMI Compression Ball Valve | Compression-connected water lines | Compression |
| Midline 947M223 | Compression fitting with purge vent | Compression |
| Midline 405P001-NL | Full-port PEX connections | PEX |
WiseWater 1-Inch PEX Ball Valve With Drain
Best for: Buyers installing a 1-inch PEX line who want a valve with a drain and crimp rings in the package. This full-port brass valve is sold in a five-pack and includes 10 crimp rings to help with installation.
The product listing states a 400 PSI rating for water, oil, and gas and 150 PSI for steam. It also identifies the valve as UPC certified and says it complies with NSF/ANSI 61, Section 8 standards. Smooth threads are described as helping reduce resistance during installation.
Limitation: This is a PEX connection valve, so choose it only if its connection method suits the pipe and installation. The listed pressure ratings vary by service type.
Midline 928D223 Three-Way Drain Valve
Best for: Buyers who need a configurable drain direction for system cleanout. The 1-inch SWT valve has a three-way adjustable flow path. Its listing explains that users can remove the handle, turn the stem 180 degrees, and replace the handle to reverse the flow and drain direction.
The listing describes heavy-duty brass construction and identifies the valve as dezincification-resistant and lead-free. Its drain feature is intended for quick cleanout of an entire piping system, making it distinct from simpler shutoff valves with a drain.
Limitation: This model uses 1-inch SWT connections. Avoid choosing it if your piping requires PEX or compression connections.
CMI 1-Inch Compression Ball Valve
Best for: Buyers looking for a full-port compression valve for an inline water line. The listing specifies 1-inch compression fittings at both ends and describes the valve as suitable for water-line installations, replacements, and retrofits. It names copper and plastic pipe systems using compression connections among its intended applications.
This brass valve has a quarter-turn mechanism and a steel lever handle with a red vinyl coating. Its listing states 600 WOG, lead-free, and CSA approved, and describes a Teflon seal. The full-port design is intended to allow unrestricted flow through the valve.
Limitation: The compression ends determine whether this valve fits your existing line; confirm the pipe and fitting requirements before selecting it.
Midline 947M223 Compression Ball Valve
Best for: Buyers who want a compression-connected full-port valve with a built-in purge vent. The 1-inch model is described as having secure compression connections and a vent for water drainage during testing and maintenance.
Its listed construction is heavy-duty forged brass that is dezincification-resistant and lead-free. Choose this model when the purge-vent function and compression connection match the job; the listing highlights those features rather than an adjustable three-way drain path.
Limitation: Its compression connections may not match systems designed for PEX or SWT fittings. Check connection style before ordering.
Midline 405P001-NL PEX Ball Valve
Best for: Buyers who need a full-port valve with 1-inch PEX connections on both ends. The listing identifies it as an Everflow Supplies part, number 405P001-NL, and describes an adjustable drain.
This is a straightforward option to compare with the WiseWater PEX valve when connection type is the main requirement. WiseWater lists package crimp rings and specific pressure ratings; the Midline listing instead emphasizes the full-port design, PEX ends, and adjustable drain.
Limitation: The provided product details do not specify pressure ratings or certification. Review the product documentation if those requirements matter for your installation.
Buying Guide: How to Choose a 1-Inch Ball Valve With Drain
Which connection type matches your pipe?
Start by identifying the existing pipe and connection method. PEX, compression, and SWT fittings are different connection styles. Select a valve that matches the installation plan rather than relying on the shared 1-inch size alone. If replacing a valve, check the fitting type and product documentation before purchase.
Do you need a basic drain or an adjustable flow path?
A drain port provides a way to release water for maintenance or testing. The Midline 928D223 is the option in this group that specifically describes a reversible, three-way flow path. Other listed models describe a drain, purge vent, or adjustable drain without the same three-way operation details.
Does full-port design matter?
Several listings identify their valves as full port. CMI describes its full-port design as allowing unrestricted flow and reducing pressure drop. If maintaining flow through the valve is important, compare full-port details in the product listing and verify they suit the plumbing application.
What ratings and materials should you verify?
Check pressure ratings for the intended service, since ratings can differ for water, oil, gas, and steam. WiseWater provides ratings by service type, while the CMI listing states 600 WOG. Do not assume one valve’s rating applies to another. Also confirm any certification or material requirements for the project.
Frequently Asked Questions
What does a drain feature do on a ball valve?
A drain feature provides a way to release water from piping for tasks such as maintenance, testing, or cleanout. The exact drain operation varies by valve model.
Can a 1-inch PEX valve replace a 1-inch compression valve?
Not automatically. The nominal size may be the same, but PEX and compression connections differ. Match the connection type to the pipe and fittings.
Which option lists a reversible drain direction?
The Midline 928D223 listing describes a three-way adjustable flow path that can reverse the flow and drain direction by changing the stem position.
What should I check before installing a drain ball valve?
Confirm the connection style, pipe size, pressure requirements, intended service, and any relevant material or certification requirements using the product documentation.