Hydronics
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Caleffi Discal Series 551 Air Separators Brass Sweat
Air separator. Brass body. Glass reinforced nylon internal element. ½" NPT female bottom thread. 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.$91.57 -
Caleffi Series 6563 Twistop Thermoelectric Actuator 24VAC Manual Twist Open
Twistop Thermoelectric Actuator 24VAC Manual Twist Open w/green open indicator, Includes 36" Leads and Built-in End SwitchTwisTop™ thermo-electric actuator for use with return manifolds. Twist the top to manually open. Power supply: 24 V AC/DC. Initial current draw: 800 mA. Power consumption: 3 W. Rating of micro-switch contacts: 5A (24 V). 31.5" wire lead connection.$60.02 -
Caleffi Universal Flow Switch
Universal Flow Switch for heating systems. 1" NPTM, Brass body, Suitable for 1" to 8" pipe. UL listed.Universal Flow Switch for heating and air conditioning systems. Suitable for 1" to 8" pipe size. Working pressure: 150 psi. Working Temperature: 250 F. Minimum Flow: 5.7 GPM. Rating of switch contacts : 5A. CE, cUL, NEMA Type 5, IP 54$121.97 -
Caleffi Pressure/Temperature Gage for Boilers with 3 1/8" Dial size
Caleffi Pressure/Temperature Gage for Boilers with 3 1/8" Dial sizeTridicator dual pressure / temperature gage for boilers. Dial size: 3 1/8". Pressure range: 0—75 PSI. Temperature range: 60—320 F. ¼" NPT rear probe.$16.73 -
Caleffi Series 521 Mixcal Three Way Mixing Valve Sweat
Caleffi Series 521 Mixcal Three Way Mixing ValveThe 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.$88.25 -
Caleffi Series NA100 3/4" Sweat Tail Piece for use with 1" Union
Caleffi 3/4" Sweat Tail Piece for use with 1" UnionTail piece. Low lead brass$5.85 -
Caleffi 573 Series Backflow Preventer and AutoFill Assembly 1/2" Sweat Union Inlet Dual Check Backflow Preventer plus Automatic Boiler Feed Valve with 1/2" NPT Female Outlet
Caleffi 573 Series Backflow Preventer and AutoFill AssemblyPre-adjustable automatic filling valve with backflow preventer. Brass body. Max. inlet pressure: 175 psi. Max. working temperature: 150°F. Setting pressure range: 3—60 psi. Preset outlet pressure: 15 psi.$84.75 -
Caleffi Series Z3 3-Way Diverting Valve with 3/4" Sweat 240 Degrees 20 gpm
Caleffi 3-Way Diverting Valve with 3/4" Sweat 240 Degrees 20 gpmThree-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.$36.13 -
Caleffi Series 669 Manifold PEX Flow Meters
Caleffi Series 669 Manifold PEX Flow MetersFlow meter for manifolds. Max: temperature: 180°F (669050). Max: temperature: 210°F (NA series). ¾" straight male x ¾" straight female connections$18.37 -
Caleffi Series 5022 High Capacity 1/2" NPT Male Air Vent
Caleffi Series 5022 High Capacity Air VentHigh Capacity automatic air vent. Brass body. Max. working pressure: 150 psi. Max. discharge pressure: 60 psi. Max. working temperature: 250°F.$18.29