Dungs Screw Based Orifice
PART # SBO-677
DESCRIPTION: 2" NPT BORE 1.450"; BETA RATIO 0.725, HEAD LOSS 48%; 2350 CFH PART # 269261
½” - 2” NPT; rated 250 PSI
Low cost metering device permits accurate setting of burner air and gas flow for optimum efficiency.
+/- 1 % accuracy depending on location, measurement accuracy and proper use of correction factors.
One piece machined brass connection
Includes brass hex-head screws to plug holes when measurements are not being taken.
For temperatures up to 300 °F.
1/8” NPT pressure taps.