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Category:

Butterfly Valve

Butterfly Valve-Control

Keyword：

Soft Seal Nodular Cast Iron Electric Flange Butterfly Valve Bidirectional Seal

Electric soft seal nodular cast iron butterfly valve is generally a medium structure, mainly composed of soft seal butterfly valve and electric actuator. Its sealing form adopts sealing structure, has good sealing performance (up to the season leakage), sealing material is a variety of glue, polytetraethyl. Electric flange butterfly valve feeding structure performance is better than the opposite center butterfly valve, the compression resistance is generally higher.

Standard
Design standard	MSS SP-70, API 600, ASME B16.34, EN 1171, EN 593, JIS B2071, JIS B2041, GB/T 12235, GB/T12234, etc
Wall thickness standard	ASME B16.34, API 600, EN 558-1, JIS B2071, EN 13709, GB/T 12235, GB/T 12234, etc
Thread standard	ASME B16.5, ASME B16.47, ASME B16.25, EN 1092-1, EN 1759-1, EN 12627, JIS B2239, JIS B2312, JIS B2071, GB/T 9113, GB/T 12221, GB/T 12224, etc
Actuator standard	ISO 5211, ISO 15552, ISO 6432, ASME B16.34, EN 14110, GB/T, JB/T, HG/T, GOST, KS, etc

Technical data
Pressure range	PN6, PN10, PN16
Size range	DN50 (2”)~DN1200 (48”)
Face to face	ASME B16.10, EN558-1, JIS B2002, GB/T 12234, GB/T 12235, BS EN558-1, DIN 3202, GOST 3706, etc
Flanged ends	ANSI B16.5, ANSI B16.47, EN 1092-1, JIS B2220, etc
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, 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	API 598, EN 12266-1, JIS B2003, GB/T 13927, BS EN12266-1, DIN 3230-3, GOST 9544, etc
Inspection and testing standard	API 598, EN 12266-1, JIS B2003, GB/T 13927, GB/T 12220, BS EN 12266-1, DIN 3230-3, GOST 9544, etc