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How to Read Chinese Hose Fitting Model Numbers and Letters

Jul 14, 2025

The majority of part numbers for Chinese hose fittings adhere to the following conventions:

 

 

 

hose fitting

A. Head Type B. Thread Type C. Sealing Method Nominal Inner Diameter DN Code DASH
External Thread (1) Metric (0) Spherical (1) Straight Core (1) Braided Tail (1)
With Swivel Nut (2) NPSM Thread (1) Flat (2)
Fixed Nut (3) BSPP Thread (2) Flat with Seal Ring (3) 45° Bent Core (4) Spiral Tail (2)
Insert Welding (4) BSPT Thread (3) 24° Light Taper (4)
  ORFS Thread (4) 24° Heavy Taper (5) 90° Bent Core (9) Stripped Inner Core Tail (3)
  NPT Thread (5) 60° Taper (6)
  JIC Thread (6) 74° Taper (7) 22.5° Bent Core (2) Ultra-High Pressure Tail (7)
  SAE Thread (7) 90° Taper (8)
  Japanese Metric Thread (8)   30° Bent Core (3) Detachable (R5 Hose) (8)
  Japanese BSP Thread (9)   60° Bent Core (6) Insert Type (0)
Type B Ferrule (5) DIN (0)   67.5° Bent Core (7)  
  GB Metric (1)      
  Imperial (2)      
Type O Hinge (7) DIN (0)      
  GB Metric (1)      
  Imperial (2)      
Type F Flange (8) American Standard (7) 3000 PSI (3)    
    6000 PSI (6)    
    9000 PSI (9)    

 

 

 

 

 

 

 

 

 

 

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