Description
The Caleffi 538202-FD (25V023) is a precision-engineered drain valve designed for hydronic heating systems, boiler installations, and plumbing applications where dependable manual draining and system servicing are required. Featuring a 1/4″ NPT inlet connection and a garden hose (GH) outlet thread, this valve allows for easy attachment of a standard garden hose for controlled, directed drainage — minimizing mess and simplifying maintenance procedures.
Caleffi’s 25V series drain valves are built to the high standards of quality and durability that professionals have come to expect from the Caleffi brand, a globally recognized leader in hydronic system components. The compact, robust construction makes it well-suited for tight mechanical room installations and retrofit applications alike.
Key Features
- 1/4″ NPT inlet x Garden Hose (GH) outlet thread connection
- Designed for manual draining of hydronic heating and plumbing systems
- Garden hose outlet allows for directed, controlled drainage
- Compact design suitable for tight installation spaces
- Durable construction for long service life
- Part of Caleffi’s trusted 25V series drain valve line
Typical Applications
- Hydronic heating system draining and servicing
- Boiler and hot water system maintenance
- Plumbing system isolation and drain points
- Radiant heating system service connections
Specifications
- Brand: Caleffi
- Model: 25V023
- SKU: 538202-FD
- Inlet Connection: 1/4″ NPT (Male)
- Outlet Connection: Garden Hose Thread (GH)
- Series: 25V Drain Valve







Reviews
There are no reviews yet.