DIN Standard Fire Sprinkler Pipe Fittings Nipple Gas Pipe Smooth Surface

Synoptic table of iron pipe nipple

DIN Standard Black Both Threaded Casting Reducing Iron Pipe Nipple

1. The processing and production of malleable iron nipple apply Imported DISA from Denmark,DJ AMF Japan and SINTOKOGIO Japan into ensuring the quality.
    
2. The producer use the Oxford Instruments to test the quality of casting iron samples .
    
3. The maker use the high heat value nature gas anneal furnace , control the annealing process rigorously .
    
4. In order to prevent leakage,we require every pipe fitting nipple needs to be tested by air-tight test.
    
5. Controlling calibre of the thread,parallelism,angle and tooth type,each nipple will be examined by ring gauge.
    
6. The size range of iron pipe nipple’s outlet is from 4x3”to 8x6’’.
    
7. The main point of the material of the iron pipe nipple is toughness.
    
8. The surface is smooth without any sand hole.
    
9. Beyond the standard zinc coating thickness of ASME,EN,DIN and SI,(our products can be trustworthy.

Reference list of iron pipe nipple