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Dn300 Size Butterfly Valve Flange Type Stainless Steel Body Material

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Address: Jianshe South Street, Yuhua District, Shijiazhuang City, Hebei Province, China

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China • Yuanda Valve Group Co., Ltd.

Dn300 Size Butterfly Valve Flange Type Stainless Steel Body Material

Country/Region	china
City & Province	shijiazhuang hebei
Categories	Valves

Product Details

DN300 Size Stainless Steel Body Material Flange End Butterfly Valve

Usage:

The valve can be used in the pipeline and equipment of corrosive media for blocking, sealing and regulating the flow rate, fully open position, the flow rate of the medium in the pipeline shall not be greater than 5M /s

Connection size:

Type	DN	Size
Type	DN	L	D	D₁	D₂	H₁	H₂	b-f	Z-Φd
D343W-16P	60	108	165	125	99	90	220	20-2	4-Φ18
	75	112	185	145	118	100	230	20-2	4-Φ18
	85	114	200	160	132	110	237	20-2	8-Φ18
	108	127	220	180	156	120	245	22-2	8-Φ18
	130	140	250	210	184	135	283	22-2	8-Φ18
	158	140	280	240	210	155	312	24-2	8-Φ22
	206	152	335	295	265	211.5	350	24-2	12-Φ23
	256	165	405	355	320	248.5	400	26-2	12-Φ26
	304	178	460	410	375	284	438	28-2	12-Φ26
	354	190	520	470	435	315	499	30-2	16-Φ26
	404	216	580	525	480	346	527	32-2	16-Φ30
	454	222	640	585	548	377	554	34-2	20-Φ30
	506	229	715	650	609	417	602	36-4	20-Φ33
	606	267	840	770	720	487	655	38-5	20-Φ36

Main part material

Part name	Material
Body,Disc,Yoke,Gland,End cover	CF8
Valve shaft,Cylindrical pin	F304
Butterfly plate sealing ring	304+XB450
Fasteners in body	35/45
Other connecting bolts, nuts and washers	201

Technical parameters

· Nominal pressure: 1.0, 1.6 MPa
· Nominal diameter: DN50-DN600mm
· Applicable temperature and medium:
·The main material is stainless steel CF8, suitable temperature -29 ~ 425℃, suitable medium: water, oil, steam and nitric acid corrosive liquid.
· Design and manufacture: JB/T 8527 metal seal butterfly valve
· Structure length: GB/T 12221 metal valve structure length
· Connecting end: GB/T 9113 integral steel pipe flange
· Inspection and test: GB/T 13927 valve inspection and test

The valve features:

1. The valve adopts three eccentric structure, with the tighter sealing function, the sealing performance is reliable.
2. Butterfly plate sealing ring adopts multi-layer plate combination of flexible graphite and stainless steel plate, medium corrosion resistance, erosion, maintenance free, long service life.
3. The sealing surface of the valve body is the body processing technology, resistant to medium corrosion and erosion, maintenance free, long service life.
4. High strength of butterfly plate, large flow area, small flow resistance.
5, the valve shaft is sealed with flexible graphite packing, the higher the medium pressure, the better the sealing. Wear of the packing can be compensated by continuing to compress the packing gland.

Matters needing attention:

1. This product should be stored in a dry warehouse and is strictly prohibited to be stored in the open air.
2. The medium flow direction should be consistent with the arrow direction on the valve body when the valve is installed.
3. The pressure test should be carried out before installation, and it can be installed after passing the test.
4. The pipe and valve cavity should be cleaned before installation.
5. The product shall not be subject to large external force after installation.
6. The operating conditions shall meet the technical requirements in the performance specifications.
7. Set the valve bracket if necessary.
8. Long-term storage, regular maintenance.