Hydronics
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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 -
Caleffi Series 573 Backflow Preventers 1/2" Sweat Inlet/Outlet
Caleffi Series 573 Backflow Preventers 1/2" Sweat Inlet/OutletDual check continuous pressure backflow preventer with atmospheric vent. Brass body. Max. working pressure: 175 psi. Working temperature range: 32—210°F. ASSE 1012 listed and CSA B64.3 certified.$39.29 -
Caleffi Series Z2 Z-One Valve Body, 2 Way 1" Sweat 7.5 Cv, 20 psi
Caleffi Z-One Valve Body, 2 Way 1" Sweat 7.5 Cv, 20 psiTwo-way on/off two position valve. Straight through 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$46.66 -
Caleffi Series 682 PEX-AL-PEX Fittings ASTM F1281 Standard
Caleffi Series 682 PEX-AL-PEX Fittings682 series fi ttings are compatible with any ASTM F1281 multilayer PEX-AL-PEX pipe. Max. working pressure: 150 psi. Working temperature for ASTM F1281 PEX-AL-PEX piping: -41—167°F with tubing rated 200°F.$5.04 -
Caleffi Series 5027 Automatic Air Vent NPTM With Check Valve
Caleffi Series 5027 Automatic Air VentAutomatic air vent with service check valve. Brass body. Max. working pressure: 150 psi. Max. discharge pressure: 90 psi. Max. working temperature: 240°F.$9.39 -
Caleffi Series 676 Two way Zone Valve Body only 3/4" Sweat
Caleffi Series 676 Two way Zone Valve Body only 3/4" SweatTwo-way zone valve body. For fi eld installation of thermo-electric actuators 656114, 656314 or 656414. Brass body and trim. Max. body pressure: 150 psi. Max. temperature: 200°F.$30.68 -
Caleffi Z-One 120V Normally Closed Valve Actuators
Caleffi Z-One 120V 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 546 Dirtcal Dirt Separaters Brass Sweat
Dirt Separator. Brass Body. 1/2" NPT Top Thread With Plug For Optional Air Vent, Code 502243A Max. Working Pressure: 150 PSI. Working Temperature Range: 32-250F. Particle Separation Capacity: To 0.2 milIn 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.$87.21