Hydronics
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Caleffi Discal Series 551 Compact Air Separator 3/4" Sweat
Air separator. Brass body. Stainless steel mesh internal element. ½" NPT bottom thread. Max. working pressure: 150 psi. Working temperature range: 32—250°F.Air separators are used to continuously remove the air contained in the hydronic circuits of heating and cooling systems. The air discharge capacity of these devices is very high. They are capable of removing automatically all the air present in the system down to micro-bubble level. The circulation of fully de-aerated water enables the equipment to operate under optimum conditions, free from any noise, corrosion, localized overheating or mechanical damage. Micro-bubbles, fuse together, increase in volume until they become large enough to rise to the top where they are automatically released.$51.82 -
Caleffi Z-One 24V Normally Closed Valve Actuators
Caleffi Z-One 24V Normally Closed Valve ActuatorsZ-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.$48.57 -
Caleffi Series 598 1" NPT Tail Piece and Nut for Caleffi Mix Valve
Caleffi Series 598 1" NPT Tail Piece and Nut1" NPT Male with 1" Nut$10.85 -
Caleffi 132 Series QuickSetter Balancing Valve with Flow Meter
Balancing Valve with Flow Meter, offers direct reading of flow rate, no sight gauge clouding or scaling. Has brass valve body and flow meter, rotatable valve for flow rate adjustement, and graduated scale flow meter with magnetic movement flow rate indicator. MAX working pressure: 150 psi. Temperature range: 14-230 F. Max percentage of glycol: 50%.The 132 series balancing valve accurately sets the flow rate of heating and cooling transfer fluid supplied to fan coils and terminal units or where flow balancing is required in solar thermal systems. Proper hydronic system balancing ensures that the system operates according to design specifications, providing satisfactory thermal comfort with low energy consumption. The flow meter is housed in a bypass circuit on the valve body and can be shut off during normal operation. The flow meter permits fast and easy circuit balancing without added differential pressure gauges and reference charts. The balancing valve is furnished with a preformed insulation shell to optimize thermal performance or both hot and cold water systems.$90.32 -
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