Name: |
WCB Triple eccentric butterfly valve |
Material: |
Body:WCB; Disc: WCB, Stem: 13Cr. Seat: SS304+graphite |
Nominal Pressure: |
PN16 |
Nominal Diameter: |
DN500 |
End Connection: |
RF |
Structure: |
Triple Eccentricity |
Operation: |
Worm gear |
Valve type: |
Industrial Valve |
Working Temp.: |
-29℃~+425℃ |
Design Standard: |
API 609 |
Test / Inspection: |
API 598/ISO 5208 |
NACE: |
NACE0175 |
PS: We also can do according to customer's requirements.
Plat pin 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, swage treatment, city building, etc.
RTJ Sealing Surface for Flange Connection
DBV butterfly valve adopts the design of multi-layer disc sealing ring, sealing by the inside graphite, applied
for low and middle pressure, asrecycle water, swage treatment, city building, etc.
Standard Bolts & Nuts
DBV ball valve adopts the standard bolts and nuts. It could extend the valve longer sevice life
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.
Factory Overveiw
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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