Cast Iron DIN Flanged Type Butterfly Valve Technical Specification

1. Introduction to cast iron flanged type butterfly valve.

Flanged style are mainly applied to larger size cast iron butterfly valves(14" and larger) that have larger face-to-face dimensions, which are more apt to leak from thermal expansion. Usually flanged valve bodies can withstand the thermal expansion in some severe services such as high temperature, high pressure or fire sensitive applications. They have integral flanges on the body that match relative international standards: EN1092-1, DIN, JIS B2220, BS4504, or ASME B16.5, and ASME B16.1 etc.

2. G.A drawing of cast iron flanged type butterfly valve.(DIN flanged).

3. Materials for cast iron flanged type butterfly valve(DIN flanged).

ITEM NO.	DESCRIPTION	MATERIALS
1	Body	ASTM A126 Grey Iron, ASTM A536 Ductile Iron
2	Disc	Ductile Iron(Nickel Plated), Aluminum Bronze, SS304, SS316, Monel
3	Stem	SS416, SS304, SS316, Monel
4	Seat	Buna-N, EPDM, PTFE, Neoprene, Viton
5	O-Ring	Buna-N(Viton as optional)
6	Bushing	PTFE

4. Data sheet of dimensions

SIZE		Φ D	H	H1	H2	L	DIN PN10		DIN PN16
DN	INCH	Φ D	H	H1	H2	L	Φ D1	n - Φd	Φ D1	n - Φd
400	16"	580	957	296	376	216	515	16 - Φ27	525	16 - Φ30
450	18"	640	1007	315	406	222	565	20 - Φ27	585	20 - Φ30
500	20"	715	1085	352	448	229	620	20 - Φ27	650	20 - Φ33
600	24"	840	1246	441	518	267	725	20 - Φ30	770	20 - Φ36
700	28"	910	1415	473	560	292	840	24 - Φ30	840	24 - Φ36
800	32"	1025	1528	527	620	318	950	24 - Φ33	950	24 - Φ39
900	36"	1125	1742	581	685	330	1050	28 - Φ33	1050	28 - Φ39
1000	40"	1255	1863	653	735	410	1160	28 - Φ36	1170	28 - Φ42
1200	48"	1485	2240	796	917	479	1380	32 - Φ39	1390	32 - Φ48

*All dimensions are in mm unless otherwise specified.

*DIN flanged dimensions are according to EN1092-1.

Views: Author：hbmetals Date:15/02/23