Search results for 'vent'
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Caleffi Series 255 Dual Line Pump Station Return and Flow, 3 Speed
Caleffi Series 255 Dual Line Pump Station Return and Flow, 3 SpeedSolar pump stations are pre-assembled and leak-tested. Safety relief valve. Ball valves with built-in fl ow checks in return (and fl ow for dual-line models). Temperature gauges in return (and fl ow for dual-line models). Pressure gauge. Manual air vent (dual-line models only). Expansion tank connection. Connections for fl ushing and fi lling. Foam insulation. Balance/fl ow meter: ½—5 gpm scale. Pump: Grundfos UP15-100 Performance: 36 feet head / 8 gpm. Safety relief valve: 90 psi. Max. working pressure: 150 psi. Max. working temp: 360ºF. Connections: ¾" female thread. Agency approval: cULus.$506.44 -
Caleffi Series 251 Discal High Capacity Auto Air Vent 1/2" NPT Female
Caleffi Series 251 Discal High Capacity Auto Air Vent 1/2" NPT FemaleHigh-performance automatic air vent for solar heating systems. Working temperature range: -20—320ºF. Max. working pressure: 150 psi. Max. discharge pressure: 150 psi$55.10 -
Caleffi Series NA292 Shut Off Air Vent Valve 1/2" NPT Female to 1/2" Male
Caleffi Series NA292 Shut Off Air Vent Valve 1/2" NPT Female to 1/2" MaleShut-off for automatic air vent. Working temperature range: -20—360ºF. Max. working pressure: 150 psi.$24.01 -
Caleffi Series 250 Solar Automatic Air Vent
Caleffi Series 250 Solar Automatic Air VentAutomatic air vents are used in the closed circuits of solar heating systems. They allow air contained in the fluid to be released automatically during the filling process, through a valve operated by a float in contact with fluid in the system. The shut-off valves are used in combination with the automatic air vents to isolate them after filling the circuit of solar heating systems. .These series of products have been specially made to work at high temperatures with a glycol medium.$27.16
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