| Connection Type | : | Press |
| Dimensions | : | 8-1/2 in H x 5-5/8 in W |
| Domestic/Import | : | Import |
| Flow Coefficient (Cv) | : | 3 Cv |
| Flow Rate | : | 1 to 14 gpm |
| Gauge Accuracy | : | +/-6 deg F |
| Gauge Dial Size | : | 2 in |
| Gauge Scale | : | 30 to 210 deg F |
| Material | : | Brass |
| Media | : | Water, Glycol |
| Nominal Size | : | 3/4 in |
| Number of Ports/Ways | : | 3-Ways |
| Pressure Rating | : | 200 psi |
| Seal Material | : | EPDM |
| Seat Material | : | PPO |
| Series | : | 521 Series |
| Temperature Rating | : | 85 to 150 deg F |
| Trim Material | : | PPO/Stainless Steel |
The Caleffi MixCal™ 521 series three-way thermostatic mixing valve is used in systems producing domestic hot water or in hydronic and radiant heating systems. It maintains the desired output temperature of the mixed water supplied at a constant set value compensating for both temperature and pressure fluctuations of the incoming hot and cold water. The MixCal™ thermostatic mixing valve is ICC-ES certified to ASSE 1017 and CSA B125.3. It complies with codes IPC, IRC, NPC and UPC for use in accordance with the US and Canadian plumbing codes and standard NSF/ANSI/CAN 372, low-lead. Caleffi code 290030 full-port ball valve is designed for isolating the MixCal™ 521 series that has 1 in metric "G" thread union connections. The isolation valve installs in between the valve body and the tailpiece fitting assembly. Male x female configuration and bi-directional full ball valve flow capacity provides flexibility for using one or two isolation valves for the primary functioning valve. An optional stem extension is also available for those projects that require pipe insulation.
Caleffi MixCal™ Thermostatic Mixing Valve, 521 Series, 3/4 in Nominal, Press Connection, Number of Ports/Ways: 3-Ways, 1 to 14 gpm Flow Rate, 200 psi, 3 Cv Flow Coefficient (Cv), PPO/Stainless Steel Trim, PPO Seat, EPDM Seal, Brass, +/-6 deg F Gauge Accuracy, 2 in Gauge Dial, Water, Glycol Media, 30 to 210 deg F Gauge Scale, 85 to 150 deg F, 8-1/2 in H x 5-5/8 in W, Domestic/Import: Import
- Large mixing chamber and thermostatic cartridge - enables precise mixed temperature stability during inlet temperature and pressure variations
- Installation flexibility - 1/2 to 1 in sweat, NPT, press, PEX crimp and PEX expansion union connections
- Anti-scale polymer materials - inhibits scaling on internal sliding surfaces, assuring stable temperature control and long life
- Tamper-proof adjustment setting lock - prevents tampering of the mixed water temperature set point
- Posi-Stop™ union seal and internal O-ring seals - stands up to treated water, chlorine or chloramines
- Precisely manufactured - finely machined threads and double O-rings for smooth knob adjustment