Flange Type Butterfly Valve

Flange Type Butterfly Valve

ZFV flange type triple offset butterfly valve, which can fully ahieve zero leakage sealing. In a situation with variety of harsh, critical process control pipeline, we can use triple offset butterfly valve, which is safe in using and low cost in price. * Size : DN1800 , DN800 * Pressure : PN6 *...

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Product Details

ZFV flange type triple offset butterfly valve, which can fully ahieve zero leakage sealing. In a situation with variety of harsh, critical process control pipeline, we can use triple offset butterfly valve, which is safe in using and low cost in price.

 

* DN1800 Nominal Diameter

* PN6 Pressure Rate 

* Double Flange ends type 

* Bare shaft with top flange , flange dimension conform ISO5211

* 5900/N.m Operating Torque  

* 670mm FTF Dimension

* Triple offset disc desgin

* stainless steel 304 + Graphite laminated seal 

* Prime Coating Color Blue

* Coating RAL NO. RAL9005

* -29°C ~ 280°C Using Temperature  

* For Shutoff function 

* Design and manufacture EN593

  Face to face dimension EN558

  End flanges dimension EN1092-1

  Test & inspection as EN12266-1

* Wenzhou city , ZJ province, China

* 3.1 certificate provided along with Materials  

Material of Main Valve Part :

      No
                                     Part Name
                     Material
        1                                      Body                   A216 WCB
        2                                      Disc                   A216 WCB
        3                                   Seat Seal               SS304+Graphite
        4                                      Stem                    A276 410
        5                                    Packing               Flexible Graphite


Triple offset butterfly valve product overview:

1. The elastic property of the laminated metal seal makes the valve have zero leakage performance .

2. The torqe sealing ensure valve is in consistance bi-directional zero leakage .

3. The rigth angle rotary friction design is achieved by a unique triple offsets principle that eliminates friction between the valve seat and seal ring in the 90 degree rotation.

4. Stellite hard faced integral body seat can meet various working situation, increase using life, providing a convenient maintenance.

5. Intigral casting valve body, the face to face dimension conform  ISO5752, ASME B16.10, API609, the valve can be repalced with high performance butterfly valve, providing a easy and flexible way for  installation.

6. All metal construct plus zero leakage property, make the valve have fire safe characteristics.

7. Anti Blow-out stem design is safe and reliable, fully meet the requirement of API609.

8. The valve position indicator on the stem rod and top mounting flange are helpful for the disc position indicating.

9. Three eccentric butterfly valve stem adopts a through shaft structure, stem and disc connection with key or key group .  

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