Single Flange or Double Flange Pneumatic Dust Butterfly Valve for Concrete Mixing Plant with Limit Switch and Solenoid Valve

Single Flange or Double Flange Pneumatic Dust Butterfly Valve for Concrete Mixing Plant with Limit Switch and Solenoid Valve

ZFVALVES Butterfly Valve the sealing ring is a composite structure of flexible graphite plate and stainless steel plate. It is mounted on the valve body and the sealing surface of the butterfly plate is welded with stainless steel

Product Details

We are proud of the high customer satisfaction and wide acceptance due to our persistent pursuit of high quality both on product and service for Gear Butterfly Valve, DIN Butterfly Valve, Cast Steel Ball Valve. Our company adheres to the corporate spirit of 'loyalty, benevolence, diligence, and innovation', has gathered a large number of outstanding talents and established a strong core leadership team. Opening up is a platform for rapid development. Under the background of economic globalization, our company is committed to providing first-class products and services to global customers. We actively attract talents, learn from others' strengths, and uphold the concept of integrity, professionalism and win-win. We adhere to the traditional spirit of ingenuity and on this basis to innovate and reform and strive to achieve practical, convenient, innovative products.

【Product Introduction】:

We ZFVALVES is a professional manufacturer of Double Flange Butterfly Valve. ZFVALVES offers a wide range of standard valves to meet the needs of customers around the world, including: API609 / ANSI / ASTM standards, AWWA / AWWA C207 standards, EN593 / DIN / BS standards, ISO standards, JIS / JIS B2220 standards, GOST / GOST 54432 standards Wait.


【Product Information】:

* Nominal Diameter : DN300

* Pressure : PN16

* Connection Type : Double Flange ends

* Body: A351 CF8

* Disc: A351 CF8M

* Seal: SS316+Graphite.

* Seat:Stainless steel Integral seat

* Stem: A182 F304

* Operation Way: Gearbox

* F/F length : 178mm

* Material Heat Treatment : Solution treatment.

* Need Extended Stem : No

* Suitable Temperature : -29°C ~ 425°C

* Suitale Pressure : PN ≤ 16Bar

* Suitable service : W.O.G. Acid. Corrosive service .

* Function : Shutoff & regulation

* Design and manufacture as per: EN 593

* Face to face dimension as per: EN 558

* End flanges dimension as per: EN1092-1

* Test & inspection as per: EN12266-1

* Supplying Mode : OEM production & ZFV brand .

Please contact us for detailed data


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【ZFVALVES Pressure Test Requirements】:

 1. Prior to shell testing, the valve shall not be painted or coated with other coatings that mask surface defects (phosphorization or similar chemical treatment is allowed to protect the valve surface prior to testing, but voids, pores and blisters should not be hidden, etc. Defect)

 2. When performing the sealing test, no external force should be applied to both ends of the valve, which will affect the leakage of the sealing surface. 

 3. For the visible leakage of the valve pressure test, the housing grinding and upper sealing tests are not allowed. If the test medium is a liquid, there should be no visible droplets or surface moisture. If the test medium is air or other gas, there should be no air bubble leakage.

 4. For low pressure seal testing of valve pressure test, visible leaks are not allowed to pass through the valve identification, the contact surface between the valve seat and the valve body, and there is no structural damage. Reference Standard API 598 Test Test Allowable Test Medium Leakage Rate Through Sealing Surface Duration.

We ensure that every outgoing valve is strictly inspected


Based on the optimization of industrial structure and driven by technological innovation, we have a good reputation in the Single Flange or Double Flange Pneumatic Dust Butterfly Valve for Concrete Mixing Plant with Limit Switch and Solenoid Valve industry for many years with the attitude of honesty. Best efforts will be produced to offer you the very best service and solutions. With advantage of industry management, the business has generally been committed to supporting prospects to become the current market leader in their respective industries.

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