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Category:

Butterfly Valve

Butterfly Valve-Control

Keyword：

Cast Iron Pneumatic Double Acting Soft Seal Wafer Butterfly Valve Factory

Pneumatic wafer butterfly valve is clamped between the two ends of the pipe flange, and then fixed with a set of bolts through the bolt hole. The body of pneumatic wafer butterfly valve volume is small, and the thickness is relatively thin, especially suitable for short distance between the two ends of the pipe or limited space in the occasion.

Standard
Design standard	API 600, EN 13709, DIN 3356, BS 1873, JIS B 2071, GB/T 12235-2007, ГОСТ 5762-2002, etc
Wall thickness standard	ASME B16.34, EN 12627, DIN 3356-1, BS 1873, JIS B 2071, GB/T 12224-2015, ГОСТ 3706, etc
Thread standard	ASME B16.5, EN 1092-1, DIN 2501, BS 4504, JIS B 2212, GB/T 9113-2000, ГОСТ 12815-80, etc
Pneumatic actuator standard	NEMA MG1, ANSI/ASME B30.1, ISA S20, DIN EN ISO 5211, JIS B 8391, GB/T 12222, ГОСТ 24705-2004, etc

Technical data
Pressure range	PN6, PN10, PN16, PN25
Size range	DN50 (2”)~DN1200 (48”)
Face to face	GB/T 12221-1989
Wafer ends	JB/T 79.1~JB/T 79.4, HG 20615/HG 20623/HG 20592, ANSI B16.5, ANSI B16.47
Temperature range	-40℃~200℃
Pressure test	GB/T 13927-1992, JB/T 9092-1999

Valve material
Body material	nodular cast iron
Disk material	nodular cast iron, carbon steel, stainless steel
Trim material	304, 316, 316L, 2205, 2507, 2Cr13, 4Cr13, F11, F22, etc
Seat material	ASTM A182 F304/F316/F316L combination R.TFE or graphite
Stem material	ASTM A276 420, ASTM A276 F304/F316/F316L
Soft seal material	neoprene, nitrile rubbe, ethylene propylene rubber, teflon, silicone rubber, fluorine rubber

Design feature
Body type	straight-through
Body shell strength	ASME B16.34, GB/T 9092, GB/T 13927, API 598
Seat structure	multi-layer
Flow characteristics	approximate equal percentage

Inspection and test
Leakage rating	ANSI FCI 70-2, EN 12266-1, DIN 3230-3, BS 6755-2, JIS B 2003, GB/T 13927-2008, ГОСТ 9544-2005, etc
Inspection and testing standard	API 598, EN 12266-1, DIN 3230, BS 6755-1, JIS B 2003, GB/T 13927-2008, ГОСТ 9544-2005, etc