Triple offset BW butterfly valve DN1800 PN6 Gear box operated
Body: Q245R; Disc: WCB, Stem:A182 F6A. Seat: SS304+Graphite
Metal seated butterfly valve
Test / Inspection:
Face To Face:
PS: We also can do according to customer's requirements.
Every valve in DBV with clear typecasting.Our big size butterfly
valves also can comply with the leakage class A.(Zero Leakage).
Fixed pin to prevent disc from loosening,in this way to ensure stable sealing
Accurate processing the disc to ensure excellent sealing.
Many big size disc we also have them in stock to ensure
short delivery time
The top flange design comply with ISO 5211,The yoke is
convenient for assembling worm gear, pneumatic, electric,
hydraulic and pneumatic & hydraulic actuators.
Triple Eccentricity Design Features
The stem is offset on both the X (1)and Y (2) axis of the valve'scenter line. This produces a cam一like motion.
The third offset (3)consists of an inclined conical profile machined into the valvesealing 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 seatand seal ring are fully engaged torque
is applied in order to create a bi一directional, zero leakage, metal-to一metal seal. Forthis reason, triple
offset valves are often defined as "torque" seatedrather than”position” seated as in the case of resilient
or highperformance 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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Main Technology Parameters
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