Big Size API609 Big Size Cast Steel Flange&Wafer&Lug Type Triple Eccentric Metal Seal Butterfly Valve

Big Size API609 Big Size Cast Steel Flange&Wafer&Lug Type Triple Eccentric Metal Seal Butterfly Valve

Big size butterfly valve is light in weight, low in material consumption, small in installation size, easy to operate and quick, and it also has good function of flow adjustment and close zero leakage.

Product Details

We are in line with the concept of 'quality innovation for survival, reputation and efficiency for development' and we use precision Wafer Double Offset Butterfly Valve, Wafer Type Butterfly Valve, Cryogenic Ball Valve, high quality and efficient service to win your trust and support. After several years of development, with the help and support of new and old customers, our company has achieved certain results and gain a good reputation in the market. Our company has always taken 'green technology, leading the future' as its corporate purpose, and abides by the corporate spirit of 'integrity, pragmatism, teamwork, and innovation'. In the future, our company will be committed to promoting the development of the industry, and gradually develop towards a comprehensive and international direction.

【Product Introduction】:

ZFVALVES Big size butterfly valves are exported to Europe, Africa, Asia and other countries,it is widely used not only in petroleum, gas, chemical industry, water treatment and other general industries, but also in the cooling water system of thermal power stations.

In the foreseeable short time, especially in the use of large and medium-sized diameter, low pressure field, butterfly valve will become the dominant valve form.


【Product Parameter】:

* Nominal Diameter: 44 inch

* Pressure Rate: Class 150

* Connection: Double LUG ends type

* Structure: Triple offset desgin

* Body: WCB

* Disc: WCB

* Stem: AISI420

* Seal: Laminated stainless steel 304 + Graphite

* F/F Dimension: 230mm 

* Prime Coating: Color Black

* Coating RAL NO.: RAL5005

* Using Temperature: -29°C ~ 425°C 

* End flanges dimension: ASME B16.47 Series B

* Wenzhou city , ZJ province, China


5-25-4


【Big Size Butterfly Valve Feature】:

1. The disc of the valves is installed in the diameter direction of the pipe.

2. The sealed surface is made of hard alloy of cobalt by overlaying welding. Through thermal treatment, the hardness of disc in improved

3. Big Size Butterfly Valve has casting valve body, face-to-face size conforms to ISO5752, ASME B16.10, API609. 

4. Elastic property of composite metal sealing ring performs zero leakage.

5. Explosion-proof rod design is safe and reliable, fully meet the requirements of API609.

6. The valve position indicator on the rod and top mounting flange facilitates the disc position indication.


【Attention for seat surfacing】:

In the generation and application of butterfly valve are indispensable to the use of welding technology, the butterfly valve seat needs surfacing welding, then when welding we should pay attention to what? The following free from the professional production of big size butterfly valve zfvalves sorting release and hope to help with you:

* VT (visual inspection) is usually used to check for obvious welding defects, such as cracks, edging, molding defects, burn-through, spatter, etc

* When the sealing surface is finished, it is usually checked for cracks by PT according to the customer's requirements,

* The hardness of sealing surface should be tested after surfacing.

* Common surfacing materials:1CR13、2CR13、Stellite6、Stellite21、Stllite12、Cobalt-base alloy、Monel...

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'Sincerity, Innovation, Rigorousness, and Efficiency' could be the persistent conception of our organization for your long-term to establish alongside one another with shoppers for mutual reciprocity and mutual benefit for Big Size API609 Big Size Cast Steel Flange&Wafer&Lug Type Triple Eccentric Metal Seal Butterfly Valve. We plan to form an enterprise with strong market development capabilities, scientific research and development capabilities, project operation and maintenance capabilities. The three elements of corporate slogan, corporate philosophy and customer experience explain the meaning behind our company's existence, and at the same time clarify the basic principles that are the foundation of the company.

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