Name: |
GO DI QT450 Flange Triple Eccentric Butterfly Valve |
Material: |
Body:QT450; Disc: QT450, Stem: SS410. Seat: Overlay 13Cr. |
Nominal Pressure: |
PN10 |
Nominal Diameter: |
DN800 |
End Connection: |
Flange |
Structure: |
Triple Eccentricity |
Operation: |
Worm gear |
Valve type: |
Industrial Valve |
Working Temp.: |
-29℃~+200℃ |
Design Standard: |
API 609 |
Test / Inspection: |
API 598/ISO 5208 |
Face To Face: |
API 609 |
PS: We also can make according to customer's requirements.
Yoke Design
DBV butterfly valve adopts the design of top flange yoke as standard ISO5211.
It is more beautiful, and also convenient to assemble the actuator.
Multilayer-304+graphite Sandwich Design
DBV butterfly valve adopts the design of multi-layer disc sealing ring, sealing by the inside
graphite, applied for low and middle pressure, as recycle water, swagetreatment, city building, etc.
Turtle Back Disc Design
DBV butterfly valve adopts the design of turtle back disc, not only strengthening the disc to be more
strong, but also making it looks very beautiful.
Triple Eccentricity Design Features
The stem is offset on both the X (1)and Y (2) axis of the valve's
center line. This produces a cam一like motion. The third offset (3)
consists of an inclined conical profile machined into the valve
sealing surface. This allows rotary engagement and disengagement
of the seat and seal ring without interference. All rubbing
between seat and seal ring is thereby eliminated. Once the seat
and seal ring are fully engaged torque is applied in order to
create a bi一directional, zero leakage, metal-to一metal seal. For
this reason, triple offset valves are often defined as "torque" seated
rather than”position” seated as in the case of resilient or high performance products.
Multi-layer disc sealing ring
Multi-layer disc sealing ring adopts ss304 and graphite laminated,
sealing by the inside graphite, applied for low and middle pressure,
as recycle water, swage treatment, city building, etc. DBV multi-layers are all stainless steel 304+graphite or 316+graphite or better material.
Company Profile:
DBV VALVE CO., LTD is manufacturer of valves.
Email: [email protected]
Wenzhou Factory :No.96 Fanhua East Road,OuBei,WenZhou,Zhejiang,China,325102
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