Pneumatic three eccentric butterfly valve(Fork cylinder)
manufacturer: Shanghai MeiYan Yi Pump & Valve Co., Ltd.
Eml: sales@1bengfa.com
Tel: +86 (21) 5640 2009
Mob: +86 138 1691 3072（WeChat Same Account）
product drawing
Pneumatic three eccentric butterfly valve(Fork cylinder)
features
D641H triple eccentric butterfly valve is on a basis of double eccentric butterfly valve created angle (sealing surface inclined ), thus forming a triple eccentric butterfly valve. This structure in the process of hoist without abrasion and bruises, and its closeing torque is small, good cutting performance, long service life, also has the function of regulating and cut off two kinds.
applicable scope
This series of products are widely used in petroleum, chemical industry, electric power, metallurgy, environmental protection, textile, paper and other industrial automation control system, suitable for liquids, gases, coal gas, natural gas, steam and other medium cutting off and regulating flow control.
technical parameters and performance indicators
PN：0.6、1.0、1.6、2.5、4.0、6.4MPa
DN：DN100～1000mm
temperature scope：-100～+500℃
metal sealing leakage class：Ⅵ
soft sealing leakage class：Ⅵ (zero leakage)
flow characteristic: approximately equal percentage
body structure: wafer, flange, butt welding, jacket insluation
bonnet type: standard, low temperature, high temperature
actuator:pneumatic piston actuatorm pneumatic diaphragm actuator, electric device, manual device, electric-hydraulic device
According to the condition can equip with hydraulic buffer device, thereby eliminating water hammer, protecting system pipeline security.
specification and technical parameters
| DN(mm) | rated flow coefficient Kv | flow characteristic | PN(MPa) | rated corner | locator signal (mA) | power（electric） | air source pressure (MPa) | leakage class | working temperature(℃) |
| 100 | 390 | equal percentage | 0.6 1.0 1.6 2.5 4.0 6.4 |
90º 60º |
4～20 0～10 |
220VDC 380VAC |
0.4~0.6 0.25~0.4 |
Ⅴ Ⅵ |
-100 to +500 |
| 150 | 1150 | ||||||||
| 200 | 2030 | ||||||||
| 250 | 3150 | ||||||||
| 300 | 4550 | ||||||||
| 350 | 6200 | ||||||||
| 400 | 8100 | ||||||||
| 450 | 10260 | ||||||||
| 500 | 13500 | ||||||||
| 600 | 19800 | ||||||||
| 700 | 27000 | ||||||||
| 800 | 35700 | ||||||||
| 900 | 44600 | ||||||||
| 1000 | 55080 |
