Factory Price PTFE Wafer Lug Water Pneumatic Fire Control Shut-off Manual Gearbox Butterfly Valves ASTM

Factory Price PTFE Wafer Lug Water Pneumatic Fire Control Shut-off Manual Gearbox Butterfly Valves ASTM

* Size: DN1200
* Pressure: PN16
* Connection: Double Flanged Ends
* Pressure direction: Bi-directional
* Operation : Pneumatic Actuator

Product Details

We've numerous great employees customers excellent at promoting, QC, and working with kinds of troublesome difficulty inside the generation method for butterfly valve for hot water, Flange Type Butterfly Valve, compressed air ball valve. We advocate mutual understanding, value diversity and look at our corporate culture from a global perspective. We are very willing to strengthen exchanges and cooperation with outstanding companies in the industry and develop together in the new economic situation. We build sustainable and stable customer relationships and promote the development of industry technology.

【Product Introduction:

Bi-directional triple offset butterfly valve no matter which direction the medium comes from, the two-way sealed three eccentric butterfly valve sealing butterfly valve can be sealed.

The butterfly valve uses a high-performance composite sealing pair, or a surfacing alloy steel sealing pair, zero leakage, and long life. Bidirectional Triple Offset Butterfly Valve's sealing surface materials are alloy steel, polylactide, rubber, and PTFE seals; the connection type is flanged and wafer type. 

The butterfly valve is suitable for which require two-way sealing, frequent opening and closing, high reliability, pure pipelines and important pipelines in petrochemical, electric power, alloy, transportation, large-scale construction and other fields.


Products Details:

*  Type: D643H-DN1200-PN16                                                                  * Connection Type: Flange Ends

*  Pressure type: Bi-directional                                                                  * Valve Structure: Triple Offset

*  Operation : Pneumatic Actuator                                                             * Actuator type:Single acting(spring return)

*  Face to face length : 470mm                                                                  * Standard: Design and manufacture BS EN 593

*  Application : Chemical,System Pharmaceutical,Power and Oil.             * Suitable Temperature : -29°C ~ 375°C

*  Suitale Pressure : PN≤1.6Mpa                                                               * Origin:CHINA.

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Product Features

1. Bidirectional Triple Offset Butterfly Valve solves the problem of two-way sealing of metal hard seal butterfly valves with three eccentric structures.

2. The butterfly plate adopts a truss type structure with good rigidity and small deformation.

3. The sealing surface of the valve plate and the valve seat is an oblique conical structure, and the temperature-resistant and corrosion-resistant alloy material is deposited on the inclined conical surface of the valve plate.

4. It adopts soft T-shaped multi-layer stainless steel sheets on both sides to form a sealing ring. It has zero leakage sealing performance under low temperature and high temperature conditions.


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Nowadays, the two-way sealing butterfly valve produced by many manufacturers adopts the same structural design as the ordinary one-way sealing butterfly valve, only increases the diameter of the valve stem and increases the thickness of the sealing ring. Although this structure can be sealed, it is limited to small diameter valves, and the flow rate in the pipeline is small.

ZHENGFENG VALVES Bi-directional triple offset butterfly valve is a new product designed in recent years according to the development needs of the use situation.Welcome to contact with us.


Our primary purpose is to give our shoppers a serious and responsible company relationship, giving personalized attention to all of them for Factory Price PTFE Wafer Lug Water Pneumatic Fire Control Shut-off Manual Gearbox Butterfly Valves ASTM. To achieve mutual success, we will make our best efforts to build a solid co-operation and transparent communication work with our companions. From source selection to design and R&D, manufacturing process to finished product installation, we check every level to fully guarantee the quality of each product.
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