The Caleffi 688003A is a Manifold Gage 50mm 210 F for Caleffi mixing valve systems. It is supplied as a service or integration component and is not a standalone mixing valve.
Best for water heater and storage tank outlets where a single valve sets the distribution temperature for an entire building, zone or riser.
Specifications sourced from Caleffi NA technical literature, 2025 revisions.
Key Features
Thermostatic Element Control
A wax-actuated element responds to outlet temperature changes and repositions the shuttle continuously, holding setpoint without power or controls.
Low-Lead Brass Construction
Wetted surfaces carry a weighted average lead content below 0.25%, meeting Section 1417 of the Safe Drinking Water Act.
Technical Specifications
| Medium temperature range | 30-210 deg F |
| Series | Accessories |
| Valve Technology | Thermostatic |
Related Products
- Caleffi 645114 : Replacement LEGIOMIX actuator
- Caleffi 755052 : Modbus-to-BACnet gateway
- Caleffi F0000962 : Replacement LEGIOMIX controller
- Caleffi F69591 : Replacement recirculation sensor
Frequently Asked Questions
Does Caleffi 688003A include integral check valves?
No. This model is supplied without integral inlet check valves. Caleffi offers a companion model with a C in the product code for applications that require built-in crossflow protection.
What is the warranty on Caleffi 688003A?
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:
- Accessories
- Valve Technology:
- Thermostatic
- Application:
- Point of Distribution
- Integral Check Valves:
- No
- Temperature Gauge:
- No