Search results for 'hydronic gas water heater'
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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 -
Grundfos UPS15-55SFC 3-Speed Stainless Steel Circulator Pump
Grundfos UPS15-55SFC 3-Speed Stainless Steel Circulator Pump w/ IFC, 1/8HP, 115VGrundfos UPS15-55SFC is a 1/8HP, 3-speed Stainless steel Circulator Pump with removalble Integral Check Valve and flanged connections. 3 speeds of the Grundfos UPS15-55SFC model make this pump very versatile and allow to match the system's requirements by adjusting the speeds (Low/Med/High), thus optimizing it's performance. Stainless steel body of the circulator resists corrosion and allows to use UPS15-55SFC model in a variety of applications ranging from open loop radiant and hot water recirculation, to closed loop hydronic heating and even chilled water cooling. This model also replaces a number of competitive models from Taco, Bell & Gosset, Wilo and others.$281.32 -
Caleffi Series 521 MixCal 3-Way Thermostatic Mixing Valve with adapter
Caleffi MixCal 3-Way Thermostatic Mixing ValveAdjustable thermostatic and pressure balanced mixing valve for point of distribution in domestic water systems and radiant hydronic heating systems. Low-lead brass body. Internal anti-scale materials. Locking set point knob. Max. working pressure: 200 psi. Max. inlet temperature: 200ºF. Adjustable range: 85—150ºF. Gauge scale: 30—210ºF. Gauge accuracy: ± 6ºF. Gauge dial: 2" diameter. ASSE 1017 Listed. Lead Plumbing Law Compliance: (0.25% Max. weighted average lead content). Lead Plumbing Law Certified by IAPMO R&T.$119.71 -
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 -
Heat-Flo Heating Products
A Complete Line of Stainless Steel
- Indirect Water Heaters
- Solar Storage Tanks
- Storage Tanks
- Buffer Tanks
Heat-Flo, Inc. is a full service design and manufacturing firm dedicated to providing high quality, cost effective solutions for hydronic, solar, and electric based hot water heating system applications, and hydronic and radiant heating applications. Heat-Flo originates all product design, manufacturing, sales, and ongoing market support at our facility in Uxbridge, Massachusetts, USA. Please inquire for more Product Detail.
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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 676 Two-way Thermoelectric Zone Valve Including Actuator
Caleffi Series 676 Two-way Thermoelectric Zone ValveZone valves are used to control hot and chilled water in heating and air conditioning systems. Coupled with an electro-thermal control actuator and managed by a room thermostat, they allow automatic on/off control of the hydronic circuit on which they are installed. Their special feature is their compact size and they can therefore be installed almost anywhere including baseboard or directly in fan-coil units.$57.30 -
Grundfos UP15-29SU Stainless Steel Circulator Pump
Grundfos UP15-29SU Stainless Steel Circulator Pump, 1-1/4" Union, 1/6HP, 115VGrundfos UP15-29SU model circulator incorporates a stainless steel body design and 1-1/4" union connection, smaking it suitable for a wide range of open and closed loop radiant heating, hydronic heating, hot water recirculation, solar & other applications.$196.04 -
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 -
Tjernlund Gas Pressure Switch
Gas Pressure SwitchThe gas pressure switch is mounted on the casing of the water heater adjacent to the heater's thermostat/gas control valve. It should be mounted close enough so that the supplied 1/4" tubing will reach from the gas pressure switch fitting to the thermostat/gas valve pressure tap port. The two provided screws are self-tapping and drilling. The screws do not require the use of a drill and their 1/2" length assures that the inner tank will not be penetrated$86.00