Date Posted :
2018-09-18
Valid Until :
2018-11-18
01. valve design and manufacturing : as per API 6D.
02. flange dimension and drilling : as per ANSI b 16.5 up to 24" dn (for 22" dn-mss sp 44) & as per ANSI b 16.47 (series-a) for 26" dn and above.
03. face to face dimension : as per ANSI b 16.10.
04. materials of construction : (a) body, bonnet & cover: Forged steel ASTM a105.
(b) ball: Forged steel ASTM a105 with 0.003" electroless nickel plating.
(c) stem: Forged steel ASTM a105 with 0.003" electroless nickel plating.
(d) seat: PTFE.
(e) seat retainer: ASTM a182-f316.
(f) bolting: ASTM a193-b7 and ASTM a194-2h for bolts and nuts respectively.
(g) seal: Primary seals electroless nickel coated, secondary nitrile o-rings (double block and bleed
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