API 602 A105 Stainless Steel Forged Flange Welding Gate Valve Shut off Valve Butterfly Valve PVC Ball Valve Plastic Check Valve

API 602 A105 Stainless Steel Forged Flange Welding Gate Valve Shut off Valve Butterfly Valve PVC Ball Valve Plastic Check Valve

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

Product Details

In the years ahead, we will develop much more superior wafer style butterfly valve, two way butterfly valve, Double Flange Butterfly Valve for our customers, creating mutually beneficial business opportunities and profits. In order to better serve the majority of users, we will continue to innovate in product technology and quality, and tailor personalized products and services for customers. Our team emphasizes the tacit understanding of cooperation, in order to achieve the highest customer satisfaction for our most important mission. According to the different requirements of each customer and different usage conditions, we provide customers with professional design, manufacturing and installation solutions one-to-one, truly tailor-made. We are not satisfied with the present achievements but we are trying best to innovate to meet buyer's more personalized needs.

【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 company is a set of advanced technology and modern management tools research and development as one of the API 602 A105 Stainless Steel Forged Flange Welding Gate Valve Shut off Valve Butterfly Valve PVC Ball Valve Plastic Check Valve manufacturer. We're self-assured to create wonderful achievements while in the potential. The tenet of our company: honesty is the cornerstone, quality is the guarantee and win-win is the goal.

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