PRA Series Reducing Adapter

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Regulators
Valves
Fittings
Gas Systems
Welding, Cutting & Heating Apparatus

PRA Series Reducing Adapter

Features

Made of stainless steel 316L material

Maximum operating temperature of pipe fittings is 1000℉( 537℃ )

Processed in multi spindle CNC machine to ensure accuracy in all direction

Smooth and flat threaded surface for better conducive seal and higher wear-resistant

Each fitting is marked with the thread type, for ease-of-use and avoid misconnection

Dimensions

Ordering Information

Fitting Type	Thread 1	Thread 2	Model Number	A	E	F	Preset Pressure
FNPT to NPT Thread	1/4" NPT( F ) 3/8" NPT( F ) 3/8" NPT( F ) 1/2" NPT( F ) 1/2" NPT( F ) 1/2" NPT( F ) 3/4" NPT( F ) 3/4" NPT( F ) 3/4" NPT( F ) 1" NPT( F ) 1" NPT( F ) 1" NPT( F ) 1" NPT( F )	1/8" NPT 1/8" NPT 1/4" NPT 1/8" NPT 1/4" NPT 3/8" NPT 1/4" NPT 3/8" NPT 1/2" NPT 1/4" NPT 3/8" NPT 1/2" NPT 3/4" NPT	SS-PRA-FNT4-NT2 SS-PRA-FNT6-NT2 SS-PRA-FNT6-NT4 SS-PRA-FNT8-NT2 SS-PRA-FNT8-NT4 SS-PRA-FNT8-NT6 SS-PRA-FNT12-NT4 SS-PRA-FNT12-NT6 SS-PRA-FNT12-NT8 SS-PRA-FNT16-NT4 SS-PRA-FNT16-NT6 SS-PRA-FNT16-NT8 SS-PRA-FNT16-NT12	1.26 in.( 32.0 mm ) 1.33 in.( 33.8 mm ) 1.50 in.( 38.1 mm ) 1.58 in.( 40.1 mm ) 1.76 in.( 44.7 mm ) 1.75 in.( 44.4 mm ) 1.85 in.( 47.0 mm ) 1.82 in.( 46.2 mm ) 2.02 in.( 51.3 mm ) 1.96 in.( 49.8 mm ) 1.97 in.( 50.0 mm ) 2.16 in.( 54.9 mm ) 2.17 in.( 55.1 mm )	0.19 in.( 4.8 mm ) 0.19 in.( 4.8 mm ) 0.28 in.( 7.1 mm ) 0.19 in.( 4.8 mm ) 0.28 in.( 7.1 mm ) 0.38 in.( 9.6 mm ) 0.28 in.( 7.1 mm ) 0.38 in.( 9.6 mm ) 0.47 in.( 11.9 mm ) 0.28 in.( 7.1 mm ) 0.38 in.( 9.6 mm ) 0.47 in.( 11.9 mm ) 0.62 in.( 15.7 mm )	3/4 in. 7/8 in. 7/8 in. 1-1/16 in. 1-1/16 in. 1-1/16 in. 1-5/16 in. 1-5/16 in. 1-5/16 in. 1-5/8 in. 1-5/8 in. 1-5/8 in. 1-5/8 in.	6500 psi ( 447 bar ) 6600 psi ( 454 bar ) 5300 psi ( 365 bar ) 5300 psi ( 365 bar ) 4900 psi ( 337 bar ) 4900 psi ( 337 bar ) 4900 psi ( 337 bar ) 4600 psi ( 316 bar ) 4600 psi ( 316 bar ) 4600 psi ( 316 bar ) 4400 psi ( 303 bar ) 4400 psi ( 303 bar ) 4400 psi ( 303 bar )
ISO Tapered Thread ( Rc ) to ISO Thread ( R )	Rc 1/4" Rc 3/8" Rc 1/2" Rc 1/2"	R 1/8" R 1/4" R 1/4" R 3/8"	SS-PRA-FRT4-RT2 SS-PRA-FRT6-RT4 SS-PRA-FRT8-RT4 SS-PRA-FRT8-RT6	1.26 in.( 32.0 mm ) 1.50 in.( 38.1 mm ) 1.76 in.( 44.7 mm ) 1.75 in.( 44.4 mm )	0.19 in.( 4.8 mm ) 0.28 in.( 7.1 mm ) 0.28 in.( 7.1 mm ) 0.38 in.( 9.6 mm )	3/4 in. 7/8 in. 1-1/16 in. 1-1/16 in.	6600 psi ( 454 bar ) 5300 psi ( 365 bar ) 4900 psi ( 337 bar ) 4900 psi ( 337 bar )