The Caleffi R53005 is a union nut with a 2 in connection, in steel for Caleffi PresCal products, providing the union joint that lets the host valve or separator be installed and removed without cutting pipe.
Product data compiled from Caleffi North America technical documentation. Last reviewed July 2026.
FunctionUnion Nut
For LinePresCal
Connection2 in
MaterialSteel
Warranty2 Years
Key Features
Genuine Union Nut
Correct thread form and depth for the matching Caleffi union tailpiece and body.
Steel Construction
High-strength steel nut for large-diameter unions.
Technical Data
| Function | Union Nut |
|---|---|
| For product line | PresCal |
| Description | 2 in Steel Nut |
| Connection size | 2 in |
| Material | Steel |
Related Products
Caleffi R530032 in Union NutCaleffi NA107151-1/2 in Union NutCaleffi R315891-1/2 in Union NutCaleffi R518382-1/2 in Union Nut
Frequently Asked Questions
What does the Caleffi R53005 fit?
It is the genuine fitting for Caleffi PresCal products. Match your host model number and connection size before ordering.
2-Year Limited Warranty. Backed by Caleffi North America's limited warranty against defects in material and workmanship for two years from date of shipment. See Caleffi's limited warranty for full terms.
- Type:
- Union Nut
- For Product Line:
- PresCal
- Connection Size:
- 2 in
- Material:
- Steel