Pingel Power-Flo Fuel Valve Positions

All Pingel Power-Flo Fuel Valves are coded with a four-digit number
followed by a series of letters, numbers or a mix of the two.


		The letters following the digits describe the number of outlets, base metal used to manufacture the valve, the valve ’s finish and the shape and design of the valve body. Letter in first position: A = Aluminum (may be polished or matte gray) C = Chromed brass D = Dual outlet T = Triple outlet Letter in second position: A = Aluminum (may be polished or matte gray) C = Chromed brass D = Diamond body design F = Flame engraved round body design G = Vertical groove engraved round body design H = Hexagon shaped body design L = Lightning engraved round body design R = Smooth round body design Letter in third position: F = Finned body design K = Knob control (instead of lever) L = Liberty engraved body design O = Oval body design V = Vacuum operated valve W = Wave body design Note: These letter designations apply only to regular Power-Flo valves. They do not apply to dirt valves, Guzzler valves or Nitro valves.
The first digit represents the valve series - the direction of the outlet in relation to the on-off position of the lever knob when installed on the left side of the motorcycle. 1 = 1000 Series 3 = 3000 Series 4 = 4000 Series (outlet towards rear) 6 = 6000 Series 8 = 8000 Series (triple outlets)

The second digit represents the size and type of thread used to mount to the fuel tank or adapter plate. 1 = 1/4” Male NPT 2 = 3/8” Male NPT 3 = 22mm Female (H-D) adapter nut included

The third digit represents the size and position of the outlet. 1 = 5/16” hose barb straight out 2 = 3/8” hose barb straight out 3 = -6AN male fitting straight out 5 = 5/16” in line hose barb 8 = 3/8” 90° hose barb facing down 9 = 5/16” 90° hose barb facing down

The fourth digit represents whether the valve is a race valve (no reserve) or a valve with reserve. 0 = Race valve - On-Off lever positions (no reserve) 1 = Reserve valve-On-Reserve-Off lever positions




4000 Series					1000 Series


6000 Series					6000 Series



1000 Series					4000 Series

-6AN, NPT, What Does It All Mean?

The AN (Army-Navy) standard was established many years ago by the US military to set a common measurement for hose and fittings. It designates the outside diameter (O.D.) of the ridged metal tube that is compatible with each size of fitting. Still used today, this AN dash standard is the benchmark measurement for military, industrial and performance hose applications. These dash sizes are expressed as the numerator of the fraction, with the denominator always being 16. For example, a -04 port is 4/16 or 1/4-inch.

Two common pipe thread sizes exist, the tapered National Pipe Thread (NPT) and the straight National Standard Free-Fitting Straight Mechanical Pipe Thread (NPSM). The tapered threads are for joining and sealing, the straight threads are only for joining. Pipe sizes do not refer to any physical dimensions. The outside diameter of each pipe or fitting must be measured and compared to a table for size identification. For example, a NPT pipe thread has an outside diameter of 1.050 inches. Each thread size has a defined number of threads per inch (TPI). The NPT pipe thread has 14 threads per inch. Both the TPI and OD of the thread are required for positive identification of thread size because several sizes have the same TPI.