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Caleffi 519 519502A Differential Pressure By Pass Valve, 3/4 in, NPT, 9 gpm, Brass
Caleffi 519 519502A Differential Pressure By Pass Valve, 3/4 in, NPT, 9 gpm, Brass
Caleffi Differential Pressure By Pass Valve, Model: 519, 3/4 in Nominal, NPT Connection, 9 gpm Flow Rate, 150 psi Maximum Working, 2 to 10 psi Adjustable, Brass, 32 to 230 deg F, 5-11/16 in L
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$164.00Â /Â ea
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- Attributes
- Features & Benefits
- Documents
- Marketing Information
Attributes
BrandCaleffi
Connection TypeNPT
Dimensions5-11/16 " L
Flow Rate9
IndustryHydronics
MaterialBrass
Model519
Nominal Size3/4
Pressure Rating150 psi Maximum Working, 2 to 10 psi Adjustable
Temperature Rating32 to 230
Features & Benefits
- Adjustable from 2 to 10 psi
- Brass body
Documents
Marketing Information
The differential pressure by-pass valve is used in systems with a fixed speed circulating pump supplying several zones controlled by two way zone valves. This valve ensures that the head pressure of the pump is proportional to the number of two way valves being closed. It will by-pass the differential pressure created by the pump as the zone valves close, thus eliminating water hammer noise. The 519 Series is available with conventional NPT and sweat union connections. Also available for size 3/4 in, the Presscon copper tailpiece with union nut makes installation and maintenance fast, easy and efficient. Special slots in the EPDM O-ring allows fluid to leak during system testing if unpressed and provide a perfect leak-proof seal when completely pressed.
Caleffi 519 519502A Differential Pressure By Pass Valve, 3/4 in, NPT, 9 gpm, Brass
BrandCaleffi
MFG #519502A
Keller #40214
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$164.00Â /Â ea