Hydronics
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Caleffi Series 5213 Scald Protection Three Way Mixing Valve Sweat-3/4"
Caleffi Series 5213 Scald Protection Three Way Mixing ValveAdjustable, anti-scald thermostatic mixing valve. The thermostatic mixer is used in systems producing domestic hot water or in radiant panel heating systems. Its function is to maintain the temperature of the mixed water supplied to the user constant at the set value when there are variations in the supply conditions of the incoming hot and cold water. The valve has been specifically certified to ASSE 1017.$92.18 -
Caleffi 3/4" Mixed Temperature Gauge Sweat Fitting Assembly
Caleffi Mixed Temperature Gauge Sweat Fitting AssemblyTail piece. Low lead brass$32.72 -
1" Caleffi 663 Series Distribution Manifold
1" NPT Inlet Ball valves and 3/4" outlets. This pre-assembled distribution assembly with Return distribution manifold including Built-In Shut-Off Valves suitable for Thermo-Electric Actuators, and Supply distirbution manifold including Manually-Adjustable Balancing Valves. MAX working pressure: 150 psi. MAX temperature 210 F.Distribution manifolds for radiant panel systems are used to optimally distribute the heating fluid in floor heating system circuits and ultimately improve the control of heat emission from the panels. The manifolds ensure that the flow of each circuit is regulated precisely and also control the shut-off, venting and automatic removal of air from the system.$229.65 -
Caleffi Series Z3 3-Way Diverting Valve with 1" Sweat Connections, 240 Degrees, 20 gpm
Caleffi 3-Way Diverting Valve with 1" Sweat ConnectionsThree-way on/off two position valve. Diverting flow pattern. Brass body. Stainless steel stem. EPDM rubber seals and paddle. Max. working pressure: 300 psi. Max temperature: 240°F. *Agency Approval for low-lead brass body: Lead plumbing law compliance: (0.25 max. weighted average lead content). Lead plumbing law certified by IAPMO R&T.$49.57 -
Caleffi Discal Series 551 Air Separators Brass NPT
Air separator with automatic ½" check valve (code 561402A) to mount expansion tank on bottom thread. Brass body. Glass reinforced nylon internal element. Max. working pressure: 150 psi. Working temperature range: 32—250°F.In heating and air conditioning control systems, the circulation of water containing impurities may result in rapid wear and damage to components such as pumps and control valves. It also causes blockages in heat exchangers, heating elements and pipes, resulting in lower thermal efficiency within the system. The dirt separator separates off these impurities, which are mainly made up of particles of sand and rust, collecting them in a large collection chamber, from which they can be removed even while the system is in operation. This device is capable of efficiently removing the smallest particles, with low head loss.$82.89 -
Caleffi Series 6561 Thermoelectric Actuator 24V Includes 36" Leads & Built-in End Switch
Caleffi Series 6561 Thermoelectric Actuator 24V Includes 36" Leads & Built-in End SwitchThermo-electic actuator for use with 663 and 668S1 series distribution manifolds. Power supply: 24 V AC/DC. Initial current draw: 800 mA. Power consumption: 3 W. Rating of micro-switch contacts: 5A (24V). 31.5" wire lead connection.$46.28 -
Caleffi Z-One Quick Order Valve and Actuator Sets
Caleffi Z-One Quick Order Valve and ActuatorZ-one valves are used to automatically shut-off the flow or redirect hot and chilled water in hydronic heating and air conditioning systems. The motorized two position, on/off/, spring return A1 series actuator has an end mounted push button for quick installation to valve body. The actuator is equipped with or without auxiliary switch and configured Normally closed or Normally Opened with wire or terminal connections. The zero leakage high temperature zone valve body Z2 series is 2-way straight through and the valve body Z3 series is 3-way diverting. The Z1 series actuator is easily attached by a push button lock and without tools. The high temperature and high close-off performance characteristics of these zone valves, combined with the compact size, makes them suitable to fit inside baseboard or directly in fan coil units.$74.18 -
Caleffi Series 519 Differential Pressure Bypass Valve with 1" NPT Female Inlet and 1" Sweat Outlet.
Caleffi Differential Pressure Bypass ValveCaleffi Series 519 Differential Pressure Bypass Valve with 1" NPT Female Inlet and 1" Sweat Outlet.$97.88 -
Caleffi 548 Series Hydro Separator
Hydro Separator available in 1"-2" NPT & Sweat Unions. MAX operating pressure: 150 psi. Temperature range with insulation: 32-210 F without insulation: 32-250 F. Medium: Water & Non-Hazardous Glycol solution. MAX percentage glycol: 50%.Series 548 Hydro Separator. This device consists of several different functional components, each meet specific requirements, typical of the circuits used in heating and air-conditioning systems. • Hydronic separator: To keep connected hydronic circuits totally independent from each other • Dirt remover: To permit the separation and collection of any impurities present in the circuits. Provided with a valved connection with discharge piping. • Automatic air vent valve: For automatic venting of any air contained in the circuits. Provided with a valved connection for maintenance purposes. The hydronic separator should be sized according to the maximum flow rate value at the inlet. The selected design value must be the greatest between the primary circuit and the secondary circuit. When a single system contains a primary production circuit, with its own pump, and a secondary user circuit, with one or more distribution pumps, operating conditions may arise in the system whereby the pumps interact, creating abnormal variations in circuit flow rates and pressures. The hydronic separator creates a zone with a low pressure loss, which enables the primary and secondary circuits connected to it to be hydraulically independent of each other; the flow in one circuit does not create a flow in the other if the pressure loss in the common section is negligible. In this case, the flow rate in the respective circuits depends exclusively on the flow rate characteristics of the pumps, preventing reciprocal influence caused by connection in series. Therefore, using a device with these characteristics means that the flow in the secondary circuit only circulates when the relevant pump is on, permitting the system to meet the specific load requirements at that time. When the secondary pump is off, there is no circulation in the secondary circuit; the whole flow rate produced by the primary pump is by-passed through the separator. With the hydronic separator, it is thus possible to have a primary production circuit with a constant flow rate and a secondary distribution circuit with a variable flow rate; these operating conditions are typical of modern heating and cooling systems.$393.41 -
Caleffi Series 694 Temperature Pocket Well for 1", 1 1/4" and 1 1/2" Hydro Separator
Caleffi Temperature Pocket Well.Temperature pocket well for 1", 1¼" and 1½" Hydro Separator. 1 ¾" pocket length.$9.21