DESCRIPTION:
Surface finishing: Black, hot-dipped and electrical galvanized malleable iron.
Shape: Reducing ribs (optional).
Type:GI HEX NIPPLE
1.America STANDARD
MATERIALS: ASTM A-197, ASTM A47
DIMENSIONS: ASME B16.3,
1/4 inch–6 inch
THREADS: ANSI B1.20.1
2. DIN flange standard:
Material: DIN1692
Dimension: EN 10242 DIN 2950
Thread: ISO 7/1 DIN 2999
3 . British standard:
Materials: ISO 5922, BS143 and BS1256
Dimension: ISO 49
Thread: ISO 7/1