The Caleffi 538402 FD is a 25V024 - Drain Valve 050 X GH for Caleffi hydraulic separator systems. It is supplied as a service or field-installed component and is not a standalone separator.
Best for service replacement and field completion of existing Caleffi separator installations.
Specifications sourced from Caleffi NA technical literature, 2025 revisions.
Key Features
Low-Velocity Separation Chamber
An enlarged internal chamber drops fluid velocity so entrained air rises and heavier particulate settles, both continuously removed in service.
Blowdown Drain and Air Vent
An integral brass blowdown valve clears collected sediment and an automatic air vent discharges separated air without shutting the system down.
Technical Specifications
| Separation Functions | System accessory |
| Maximum operating pressure | 150 psi |
| Medium temperature range | 32-250 deg F |
| Product Family | Accessories |
Documentation
Related Products
- Caleffi R49418 : 3/4 GHT Cap and Tether
- Caleffi NA10425 : Hydroseparator Well Sensor Kit
- Caleffi 501502A : MAXCAL® Automatic air vent 3/4" NPT Female
- Caleffi 502343A : VALCAL® Automatic air vent 1/2" NPT Male, w/ Check Valve & Hygroscopic
Frequently Asked Questions
What is the warranty on Caleffi 538402 FD?
Caleffi covers this product under its standard two-year limited warranty against defects in material and workmanship from the date of purchase. ZOT Supply is an authorized Caleffi distributor.
- Product Family:
- Accessories
- Separation Functions:
- System Accessory
- ASME Code Stamped:
- No
- Max Operating Pressure:
- 150 psi
- Medium Temperature Range:
- 32-250 deg F