Name: |
Forged Body Triple Eccentric Butterfly Valves |
Material: |
Body: F55; Disc: F55, Seal:F55+Graphite |
Nominal Pressure: |
300# |
Nominal Diameter: |
DN150 |
End Connection: |
Lug |
Structure: |
Triple Eccentricity |
Operation: |
Worm gear |
Valve type: |
Industrial Valve |
Working Temp.: |
-29℃~+315℃ |
Test / Inspection: |
ISO 5208/API 598 |
Face To Face: |
API 609 |
PS: We also can do according to customer's requirements.
Multi-layer Sealed Structure
This type design of butterfly valve has thoroughly eliminated
the mechanical wear and scratch between the two sealing faces,
making the sealing performance and service life of butterfly valves
greatly improved
Marking
Every valve in DBV with clear and beautiful marking
on the valve body,we usually do as our customers requirement
Flange face finish
Our flange face finish processing is very precise
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.
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
Worm Notice:
If you like our valves, please bookmark our Facebook,Twitter, which is
easier to find us. if you need it one day in the future, we do appreciate it
for your kindness.