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Salient Features 'Maintenance Free' High Performance Design. Bubble Tight Closer provides process efficiency. Dynamic Live Loaded Seal Design give super safe operation. Intact Performance in severe conditions of corrosion, abrasion, and temperature fluctuation. Technical Specification Design Standard : BS EN 593:2004 (Formerly BS 5155) Drilling : ANSI B16.5 / DIN PN10/16 Face to Face : API 609 / DIN 3202 K1 / BS 5155 / ISO 5752 / BS EN 558-1/2 Lining Thickness : 3 to 5 mm Testing Standard : BS EN 12266-1&2 (2003) Material M.O.C. Option Cast Steel ASTM A216 Gr.WCB ASTM A351 Gr. CF8 / S.S.304 ASTM A351 Gr. CF8M / S.S.316 Lining Material PFA | FEP | PVDF | PP | HDPE Test & Inspection Data Hydraulic Test¥ : Seat – 11 Kg/Cm² Pneumatic Test¥ : Seat – 6 Kg/Cm² Spark Test :15 K.V. D.C