Worm Gear Lug WCB+6A Triple Eccentric Butterfly Valves
Body: WCB; Disc: 6A, Stem: 316. Seat: surface STL,Sealing ring: SS316+STL
Test / Inspection:
ISO 5208/API 598
Face To Face:
PS: We also can do according to customer's requirements.
Oval Turtle Disc Design
DBV butterfly valve adopts the unique oval turtle
advantages such as high strength, good flow
truss structure design of the disc. It has several
characteristics and low flow-resistance coefficient.
Unique Plum Pin Design
DBV butterfly valve adopts the plum pin design, which
is different from traditional pin design. As we all know,
traditional pin is straight to the stem, but the plum pin is
tilted to the stem. From the aspect of application, the plum
pin could afford higher pressure and larger diameter.
Internal Snap Ring and Bottom Cover Design
DBV butterfly valve adopts the unique stem design.
The bottom of the stem is slotted. The ring is embed
-ded to prevent the stem blow out. Then, the snap
bottom cover plays a same role. This design suits
for the valve which is larger than four inches.
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 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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Test Pressure (Mpa)
1. DBV butterfly valve is characterized by simple structure, small volume and light weight, and it is easy to install and adjust.
The valve is widely used in the medium and low pressure pipeline.
2. Good sealing performance，corrosion resistance，high pressure and temperature resistance, smart control and safe use.
3. The unique design of triple eccentricity makes no friction between the sealing surface and extend the valve service life.
4. The elastic seal is produced by the torque.
5. The wedge design makes the valve close more and more tightly by automatic sealing function, and there’s compensation
and zero leakage between the sealing surfaces.
1. Factory Overview
2. Storage and Warehouse
3. Package and Delivery
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