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Cast Iron Butterfly Check Valve

Size Range: 2~24"(DN50~DN600)
Pressure: PN10, PN16, Class125
Body Materials: Cast Iron, Ductile Iron , WCB , Stainless Steel, Bronze
Seat Materials: NBR, EPDM
Disc Materials: Ductile Iron, WCB, CF8,CF8M, Al-bronze C958
Stem Materials: SS416, SS304, SS316

Categories

Tel: +86 18538315922
Fax: +86-371-55883235
E-mail: weisidun@wsdvalve.com
Address: ZhengZhou,HeNan,China.

Product introduction:
The wafer butterfly check valve is a energy-save product.It is manufactured based the foreign advanced technology and in accordance with relative international standards.This product is featured by excellent retaining per-formance,high safety and reliability and low flow resistance.It is suitable for systems in the industries of petrochemical food processing,medicine,textile,paper-making.Water,supply,drainage,metallurgy,energy,and light industry,etc,used as a check valve in one way.

Featutes:
1.Small in size,light in weight,compact in structure,easy in maintenance.
2.Two torsion springs are used excerting on each of the pair valve plates.Which close the plates quickly and automatically.
3.The quick-close action prevents the medium from flowing back and eliminates water-hammer effect.
4.This valve is short in length,so that it is rigid and easy to mount.
5.It is easy to install on pipeline which is laid horizontally or vertically.
6.This valve is tightly sealed without leakage under the pressure water test.
7.Safe and reliable in operation,high interference-resistance.

 

Parameters

WeiSiDun Group

Nominal DN(mm) Measurement(mm)
L R D Do
40 43 23.5 92 55
50 43 28.5 107 65.5
65 46 34.5 127 81
80 64 44 142 95
100 64 52.8 162 121
125 70 66.5 192 148.3
150 76 74.5 217 171
200 89 87.5 272 225
250 114 127 328 265
300 114 147 378 310
350 127 173 438 360
400 140 198 489 410
 Wafer Check Valve Main parts & material
Name Material
Valve body Grey iron, DI
Disc Ductile iron
Spring Stainless steel
Seal ring NBR
Shaft Carbon steel
Function & specification          
Type

Nominal Pressure

 (MPa)

Testing Pressure Suitable
 temperature
Suitable
 medium
Strength(Water)(MPa) Sealing(Water)(MPa)
DH77X-10 10 1.5 1.4 ≤80 Water
DH77X-16 16 2.4 1.8

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