How does a thermostatic mixing valve work? - YouTube
34ALF214T - Apollo Valves 34ALF214T Lead Free 3/4" Union FNPT MVA Thermostatic Mixing Valve, 150 PSI, 210°F Maximum Temperature | Plumbing Hub Canada – Plumbing Hub Canada Inc.
Apollo Valves 34ALF214T Lead Free 3/4" Union FNPT MVA Thermostatic Mixing Valve | eBay
Self Actuated Temperature Control Valves | MVA GmbH - Mess- und Verfahrenstechnik