The Caleffi NA533449HA is a replacement valve body for PresCal Compact 533H series pressure reducing valves in 1/2". It is supplied without union connection fittings, which are installed in the field, and is a service item rather than a complete valve assembly.
Best for replacing a damaged 533H body where the existing tailpieces, unions and pipe connections are sound and can be reused.
Caleffi 2-Year Limited Warranty. Caleffi North America warrants each Caleffi product free from defects in material and workmanship for two years from the date of shipment or delivery. Repair, replacement or refund of the purchase price is at Caleffi's discretion and is the sole remedy. Full terms are set out in the Caleffi North America Limited Warranty. ZOT Supply is a Caleffi distributor.
Key Features
Replacement Valve Body Only
Supplied as the valve body with connections field installed. Existing tailpieces, unions and fittings are reused, so this is not a complete valve assembly.
Matches the Original Assembly
Dimensionally matched to the 533H series it replaces, so existing fittings, orientation and pipe runs are retained.
Gauge Port Plugged
The gauge port is closed with plug NA10438, supplied with the body, which can be removed if a gauge is added later.
Same Regulating Performance
The body accepts the standard 533H cartridge and controls across the same 15-80 psi outlet range as the complete valve.
Technical Specifications
| Product Type | Replacement Valve Body |
| Product Series | PresCal Compact 533H |
| Compatibility | 533H series, 1/2" |
| Connection Size | 1/2" |
| Connection Type | Field installed; union fittings not supplied |
| Outlet Pressure Range | 15-80 psi |
| Maximum Working Pressure | 250 psi |
| Maximum Working Temperature | 180°F |
| Pressure Gauge | Not included; gauge port plugged |
| Body Material | DZR low-lead forged brass |
Specifications taken from Caleffi datasheet 01252/23 NA and the Caleffi North America catalogue listing for the 533H series replacement valve body, which itemises this part number.
Documentation
Frequently Asked Questions
Is the Caleffi NA533449HA a complete pressure reducing valve?
No. It is the valve body only. Union tailpieces and connection fittings are installed in the field, normally reusing those from the valve being replaced.
What do I need in addition to the NA533449HA?
The union tailpieces and connection fittings for your pipe type and size. These are not supplied with the body, so the existing fittings must be sound enough to reuse.
Which series does the NA533449HA fit?
Caleffi PresCal Compact 533H series pressure reducing valves in 1/2".
Does the NA533449HA include a pressure gauge?
No. Gauge port plug NA10438 is supplied with the body and can be removed if a gauge is added later.
- Product Type:
- Replacement Valve Body
- Valve Type:
- Diaphragm
- Product Series:
- PresCal Compact 533H
- Pressure Gauge:
- Not Included
- Connection Size:
- 1/2 inch
- Body Material:
- DZR low lead brass
