Flange or Wafer Ends Butterfly Valve
| Min. Order: | 1 Set/Sets |
|---|---|
| Payment Terms: | T/T |
| Supply Ability: | 2000 |
| Place of Origin: | Zhejiang |
Company Profile
| Location: | Wenzhou, Zhejiang, China (Mainland) |
|---|---|
| Business Type: | Manufacturer, Service |
| Main Products: | Api Steel Gate Valve, Cast Floating Ball Valve, Ball Valve, Ball Valve Metal Seat, Y Pattern Globe Valve |
Product Detail
| Model No.: | D41 |
|---|---|
| Means of Transport: | Ocean, Air |
| Power: | Manual |
| Standard or Nonstandard: | Standard |
| Pressure: | Others |
| Structure: | Butterfly |
| Material: | Casting |
| CLASS150-600LB: | 1/2"-48" |
| Production Capacity: | 2000 |
| Packing: | PLYWOOD CASE |
| Delivery Date: | 30 DAYS |
Product Description
Detail
The triple eccentric butterfly valve provides matched performance, reliability and quality for the harsh conditions of critical process applications, steam isolation, high cycle frequency, and temperature extremes,
The superior design of the disc/shaft engagement and the precision machined sealing components combine with innovative design geometry to provide improved cycle life, lower operating torque, and reliable performance in extreme temperatures.
Feature
-Triple Eccentric Design
Eliminates wear associated with sealing surface contact and maintains sealing integrity and high cycle life.
-Wide Angle Seat Design
Eliminates wedging and binding of the seat/disc engagement.
-Bubble-Tight Closure
Ensures process efficiency with reduced cost of maintenance.
-Self-Centering Disc Design
Accommodates thermal cycling and temperature without binding.
-Robust Single-Piece Shaft
Minimizes shaft deflection which promotes bi-directional sealing.
-No Plastics or Elastomers
Standard design provides fire safety.
-Bearing Protector Rings
Prevent solid particles from coming in contact with bearing surfaces.
-Blow out-Proof Shaft
Complies with API 609 to improve safety for operating personnel.
-Low Break and Operations Torque
Enables simplified, cost-effective automation
Triple Eccentric Design
As the name implies, there are three separate offsets designed into the triple offset butterfly valve. Two of the offsets apply to the location of the shaft in respect to the centerline of the bore and the centerline of the disc/seat sealing surfaces:
Offset 1: The shaft is offset behind the seat axis to allow complete sealing contact around the entire seat.
Offset 2: The shaft centerline is offset from the pipe and valve which provides interference free opening and closing of the valve.
Offset 3: The third offset in the design is the axis of the seat cone angle that is inclined from the centerline of the valve bore to minimize rubbing of the seat/seal contact surfaces during operation and to preserve sealing integrity over the cycle life of the valve. This wide angle seat also eliminates wedging or binding of the disc.
Material
Part Name Material
Body Cast Iron, Ductile Iron, Carbon Steel, Cast steel, Stainless Steel
Disc Cast Iron, Ductile Iron, Carbon Steel, Cast steel, Stainless Steel
Shaft Stainless Steel, Carbon Steel Coated With Electroplate
Seat Stainless Steel, Natural Rubber, Nitrile Rubber, Neoprene, EPDM, Silicone Rubber, PTFE, Bronze
O-Ring Stainless Steel, Neoprene, Nitrile Rubber
Standard
Design: ASME B16.34/API 609
Face to Face: ASME B16.10
Dimensions: ISO 5752/API 609
Flange Dimensions: ASME B16.5/ASME B16.47/ISO 7005
Testing: API 598/API 6D
Quality Assurance: ISO 9001
