D73H hard seal butterfly valve

It can be used for industrial and environmental protection, water treatment, high rise buildings, water supply and drainage pipelines for food, medicine and chemical industry.

Adoption of standards
Design criteria: GB/T 12238-1989 method
The connecting dimensions of orchid are GB/T9113.1-2000; GB/T9113.2-2000; GB/T9115.1-2000; GB/T9115.2-2000;
Structure length: GB/T12221-1989
Pressure test: GB/T 13927-1992

Dt73H/F	DN		结构长度（标准值	SIZE			法兰尺寸和螺栓孔尺寸（标准值）
							1.0MPa			1.6 MPa			2.5 MPa
Dt73H/F-(10.16.25) C.P.R.V	mm	inch	L	L2	H	H1	D1	Z-d	a	D1	Z-d	a	D1	Z-d	a
	50	2	43	265	330	350	125	4-18	90°	125	4-18	90°	125	4-18	90°
	65	21/2	46	265	362	267	145	4-18	90°	145	4-18	90°	145	4-18	90°
	80	3	49	320	375	275	160	8-18	45°	160	8-18	45°	160	8-18	45°
	100	4	56	320	410	295	180	8-18	45°	180	8-18	45°	190	8-22	45°
	125	5	64	340	425	305	210	8-18	45°	210	8-18	45°	220	8-26	45°
	150	6	70	390	465	320	240	8-22	45°	240	8-22	45°	250	8-26	45°