Changeable Eccentric Butterfly Valve

Description:
This valve have patented in China.

Size: DN50--DN150

Nominal Pressure: PN1.0Mpa/ PN1.6Mpa/ PN2.5Mpa/ PN4.0Mpa

Temperature: -30C--425C

Suitable medium: water, salt, acid, alkali, natural gas, air, ethanol, oil, food, steam etc.

Material:

Body: cast iron/ cast steel/ ductile iron/ stainless steel

Disc: stainless steel (CF8M/ CF8/ CF3M)/

    Ductile iron plated with nickel-phosphor/

    Double way stainless steel

Stem: stainless steel 304/ stainless steel 316/ stainless steel 416

    Precipitation hardening stainless steel

Packing: flexible PTFE/ flexible graphite/ rubber

Seat: changeable PTFE/ PTFE/ stainless steel multiple layer

Characteristics:

1.In order to achieve automatic compensation after the packing was used up, the

hole that contents packing set with a pair of butterfly spring.

2.Valve packing is made from excellent performance flexible PTFE, so its sealing performance is reliable.

3.To prevent the valve stem from axial movement, use circular gasket and split collar ring structure, split collar ring is made from brass material to ensure that the valve stem can turn freely.

4.In order to eliminate the error of manufacture and installation, the cover border adopts spring collar structure, and achieves no screw cover border; effectively increase the effective measuring flange sealing.

5.Seat has a self-sealing structure, the capacity of bearing pressure when the media reverse flow achieves positive flows 0.6 times.

6.Disc and stem are connected with heterotypic stem with no pin; butterfly disc hoist process has a dynamic variable eccentric function, thus greatly reduce the hoist torque.

7.To prevent corrosion between the valve stem and the valve body, avoid seat preventing disc, reduce operating torque, the shaft hole equipped with a self-lubricating PTFE composite sleeve.

8.There is wearable composite PTFE t

Place of Origin:	China(Mainland)
Brand:	Shaner
Model No. :	800D
Payment Terms :	FOB/ CFR
Quantity:	100,000 pcs per year
Minimum Order :	1,000kg
Price Terms :	according to type and size
Packaging:	wooden case
Delivery Lead Time :	according to type and size