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Green Instrument thread Fittings have been developed based on ASME B31.3 for instrumentation and process control in sizes 1/8" to 2". Green Thread and weld fittings have a wrench flat allowing standard Hex wrench assembly. This is one of the Green Pipe fitting benefits.

Male NPT to reduced male NPT
GNR Series Hex Reducing Nipple Fittings
GNR Series Hex Reducing Nipple Fittings-2
Unit of Measure
Items GNR Series Hex Reducing Nipple Fittings
GNR-4-2N-S
GNR Series Hex Reducing Nipple Fittings
GNR Series Hex Reducing Nipple Fittings
GNR-6-2N-S
GNR Series Hex Reducing Nipple Fittings
GNR Series Hex Reducing Nipple Fittings
GNR-6-4N-S
GNR Series Hex Reducing Nipple Fittings
GNR Series Hex Reducing Nipple Fittings
GNR-8-2N-S
GNR Series Hex Reducing Nipple Fittings
GNR Series Hex Reducing Nipple Fittings
GNR-8-4N-S
GNR Series Hex Reducing Nipple Fittings
Material N/A Stainless Steel 316/316L Dual Grade
P - Thread Type N/A NPT
P - Pipe Size N/A 1/4 N/A 3/8 N/A 3/8 N/A 1/2 N/A 1/2
P1 - Thread Type N/A NPT
P1 - Reduced Pipe Size N/A 1/8 N/A 1/8 N/A 1/4 N/A 1/8 N/A 1/4
L N/A 30.7 mm N/A 32.0 mm N/A 36.1 mm N/A 37.2 mm N/A 41.7 mm
E N/A 4.8 mm N/A 4.8 mm N/A 7.1 mm N/A 4.8 mm N/A 7.1 mm
H - Hex N/A 14.2 mm N/A 17.4 mm N/A 17.4 mm N/A 22.2 mm N/A 22.2 mm
Pressure Rating N/A