The Caleffi NA533459HA is a replacement valve body for the PresCal Compact series, 3/4", supplied without union fittings. It replaces the body in an existing installation, reusing the tailpieces and connections already in place.
Best for replacing a failed valve body where the existing unions and connections are sound and can be reused.
Specifications sourced from Caleffi North America technical literature. Last reviewed July 2026.
Key Features
Replacement Valve Body Only
Supplied as the valve body without union fittings. The existing tailpieces, unions and connections are reused, so the body is not a complete valve assembly.
Matches the Original Assembly
Dimensionally matched to the series it replaces so the existing fittings, unions and orientation are retained.
Low-Lead Brass Construction
Wetted surfaces carry a weighted average lead content below 0.25%, meeting Section 1417 of the Safe Drinking Water Act for potable water service.
Technical Specifications
| Product Type | Replacement Valve Body |
| Connection Size | 3/4" |
| Valve Type | Diaphragm type |
| Material | DZR low lead brass |
| Pressure Gauge | Not included |
| Product Series | PresCal Compact |
| Shipping Weight | 2.3 lb (approx.) |
Documentation
Related Products
Frequently Asked Questions
Is Caleffi NA533459HA a complete pressure reducing valve?
No. Caleffi NA533459HA is a replacement valve body supplied without union fittings. It is intended to replace the body in an existing installation, reusing the tailpieces, unions and connections already in place.
What do I need in addition to Caleffi NA533459HA?
The union tailpieces and connections from the existing installation are reused. If those fittings are damaged or corroded, a complete valve assembly is the better choice.
What is the warranty on Caleffi NA533459HA?
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 Series:
- PresCal Compact
- Product Type:
- Replacement Valve Body
- Valve Type:
- Diaphragm
- Connection Size:
- 3/4 inch
- Pressure Gauge:
- Not Included
- Body Material:
- DZR low lead brass