Standards & Types:
1) BS 4504 PN6, DN15-DN1000, 1/2"-80", THREADED FLANGE, SCREWED FLANGE, BS PT FLANGE, GALVANIZED.
2) BS 4504 PN10, DN15-DN1000, 1/2"-80", THREADED FLANGE, SCREWED FLANGE, BS PT FLANGE, GALVANIZED.
3) BS 4504 PN16, DN15-DN1000, 1/2"-80", THREADED FLANGE, SCREWED FLANGE, BS PT FLANGE, GALVANIZED.
4) BS 4504 PN25, DN15-DN1000, 1/2"-80", THREADED FLANGE, SCREWED FLANGE, BS PT FLANGE, GALVANIZED.
5) BS 4504 PN40, DN15-DN1000, 1/2"-80", THREADED FLANGE, SCREWED FLANGE, BS PT FLANGE, GALVANIZED.
Material:
CARBON STEEL: A105, 20#, Cr20, Q235B, 16Mn, 20Mn, S235JR, RST37-2, C22.8, P245GH, P250GH, A350 LF.
STAINLESS STEEL: 304, 304L, 316, 316L, 1.4404, 1.4306, 1.4307.
Surface Antirust:
Surface antirust 1: Antirust light oil
Surface antirust 2: Black paint coating
Surface antirust 3: Yellow paint coating
Surface antirust 4: Galnavized (Hot Dipped Galvanized or Cold Galvanized or Electro Galvanized)
Surface Finish:
Surface finish 1: Stock finish
Surface finish 2: Sprial serrated
Surface finish 3: Two or three grooves (Water Lines)
Surface finish 4: Smooth finish
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BS4504 THREADED FLANGE PN16, SCREWED FLANGE PN16, BSPT FLANGE