America Belt and Hose, LLC
Conversion Charts
We offer an extensive line of merchandise at competitive prices. We can custom build items including conveyor belts, hydraulic hose assemblies, suction hose assemblies, “O” rings, gaskets, and more.
Fraction to Decimal Conversion Chart
Maximum Recommended Air Flow (SCFM) through ANSI Standard Weight Schedule 40 Pipe
The flow values in the table below are based on a pressure drop of 10% of the applied pressure per 100 feet of pipe for 1/8”, 1/4”, 3/8” and 1/2” pipe sizes; and a pressure drop of 5% of the applied pressure per 100 feet of pipe for 3/4”, 1”, 1-1/4”, 2”, 2-1/2”, and 3” pipe sizes. The table gives recommended flows for pipe sizes at listed pressures and should be used to determine appropriate piping for air systems.
Water Discharge Table
This table is intended for general reference and general applicability only, and should not be relied upon as the sole or precise source of information available with respect to the subject covered. The user should also refer to and follow manufacturer’s specific instructions and recommendations with regard to such information, where they exist. Flow of water through 100 foot lengths of hose, Straight-Smooth Bore – U.S. Gallons per minute
Figures are to be used as a guide since the hose inside diameter tolerance, the type of fittings used, and orifice restriction all influence the actual discharge. Thus, variations plus or minus from the table may be obtained in actual service.
Pipe Flange Dimensions
Dimensions of Seamless and Welded Steel Pipe ASA-B36.10 and B36.19
Dimensions of 150 LB. ASA Steel Flanges
Dimensions of Tank Truck Flanges (TTMA Drilling)
Feet of Water to Inches of Mercury Conversion Table
Thread Dimensions
Nominal Dimensions of Standard Threads
Normal Engagement Length of NPT Thread in Inches (“A”)
Cam and Groove Nominal Take-Up Lengths
| Abbreviation | System Name | Compatibility | Seal Method |
|---|---|---|---|
| BSPP | British Standard Pipe Parallel | Male BSPP with Female BSPP Female BSPP with Male BSPP Female BSPP with Male BSPTr |
Washer Washer Washer |
| BSPTr | British Standard Pipe Taper | Male BSPTr with Female BSPTr Male BSPTr with Female BSPP Female BSPT with Male BSPTr Female BSPTr not compatible with Male BSPP |
Thread Washer Thread |
| CHT | American Standard Fire Hose Thread (1" National Hose Thread is Chemical Hose Thread, also knows as Booster Hose Thread) | 1" Male NH (NST) with 1" Female NH (NST) 1" Female NH (NST) with 1" Male NH (NST) 1" Thread is used on both 3/4" hose and 1" hose. Not compatible with other systems |
Washer Washer |
| GHT | Garden Hose Thread | Male GHT with Female GHT Female GHT with Male GHT Thread is same for all size hoses Not compatible with other systems |
Washer Washer |
| IPS | Iron Pipe Straight Thread | Generic Name for Straight Pipe Thread See NPSH for compatibility |
Washer |
| JIC | Joint Industrial Committee | Used with other mating JIC threads | Mechanical |
| NH or NST | American Standard Fire Hose Coupling Thread (National Hose thread also known as National Standard Thread) | Male NH (NST) with Female NH (NST) Female NH (NST) with Male NH (NST) Not compatible with other systems Thread pitch and diameters of fire threads may vary according to local and municipal regulations. Consult Factory. |
Washer Washer |
| NPT | American Standard Taper Pipe Thread (National Pipe Tapered) |
Male NPT with Female NPT Male NPT with Female NPTF Male NPT with Female NPSM Male NPT with Female NPSH Female NPT with Male NPT Female NPT with Male NPTF Female NPT not compatible with Male NPSM or Male NPSH |
Thread Thread Washer Washer Thread Thread |
| NPTF | American Standard Taper Pipe Fuel Dryseal Thread (National Pipe Tapered Fine) | Male NPTF with Female NPTF Male NPTF with Female NPT Male NPTF with Female NPSM Male NPTF with Female NPSH Female NPTF with Male NPTF Female NPTF with Male NPT Female NPTF with Male NPSM or NPSH Note: NPTF with NPTF threads do not require sealant for the initial use. After that, sealant is required. |
Thread Thread Washer Washer Thread Thread Not Compatible |
| NPSH | American Standard Straight Pipe for Hose Couplings (National Pipe Straight Hose) | Male MPSH with Female NPSH Female NPSH with Male NPSH Female NPSH with Male NPT Female NPSH with Male NPTF Female NPSH with Male NpSM |
Washer Washer Washer Washer Washer |
| NPSM | American Standard Straight Mechanical Joints (National Pipe Straight Mechanical) | Male NPSM with Female NPSM Male NPSM with Female NPSH Female NPSM with Male NPSM Female NPSM with Male NPT Female NPSM with Male NPTF |
Seal can be either mechanical or washer. Mating fittings must be of same type. |
| TIPT | Tapered Iron Pipe Thread | Generic name for Tapered Pipe Thread | Thread |
