Material: |
CF8 |
Nominal Pressure |
PN16 |
Nominal Diameter: |
DN250 |
End Sealing: |
Wafer |
Face To Face: |
ASME B16.10 |
Working Temperature: |
-254℃~500℃ |
Test And Inspection: |
API 598MSO 5208 |
End Connection: |
Wafer |
NACE: |
NACE 0175 |
Certificate: |
ISO9001, ISO14001, ISO28001, TS, CE,TUV |
PS: We also can do according to customer's requirements.
Marking
Every valve in DBV with clear LOGO and Marking on the valve body.
Casting of Disc
We choose the best raw material supplier of Stainless steel ASTM A351 CF8
Metal to Metal sealing
We protect every tiny detail of the seat sealing,very smoothly
to ensure excellent sealing performance.DBV butterfty valve
adopts all metal forged seal ring,overlays stellite alloy on the
sealing surface,its advantages are anti-wear,anti-erosion
and long service life,etc.
Flange face finish
The ASME B16.5 code requires that the flange
face(raised face and flat face)has a specific
roughness to ensure that this surface be compatible
with the gasket and provide a high quality seal.
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.
Metal to Metal Design
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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