Ductile Cast Iron Di Ci Stainless Steel Barss EPDM Seat Water Resilient Wafer Lug Lugged Type Double Flange Industrial Butterfly Valve

Ductile Cast Iron Di Ci Stainless Steel Barss EPDM Seat Water Resilient Wafer Lug Lugged Type Double Flange Industrial Butterfly Valve

* Size : DN900
* Pressure : PN10
* Connection Type : Double Flange ends
* Rubber Liner type
* Water、Sea water application

Product Details

Under the leadership of the company's leaders, we have introduced a large number of talents and established a complete quality management system to ensure the quality of our Floating Ball Valve, EN Butterfly Valve, Water Butterfly Valve. Our new strategy will enhance the operating effectiveness of the company and promote its sustainable, healthy and stable development. Therefore, the company constantly improves surpasses itself, achieves good results in the continuous struggle in the industry and makes its modest contribution to the market to create a better tomorrow. Continuously meeting customer needs is our top priority, and we will do our best to guarantee each customer's service requirements.

【Main Introduction

Rubber Seated Butterfly Valve is a valve made of Ductile Iron.This type of valve is easy to install and maintain. It has no restrictions on the mounting direction and can be installed in any direction on the pipe.Is one of the major exports of zhengfeng valves. The main design standards by API609、EN593、GB/T 12238、AWWA C504...The products are mainly used in wastewater, seawater, waste gas, sewage and so on.


Products Information

* Nominal Diameter  : DN900                                                            * Pressure : PN10

* Connection Way : Flange ends                                                       * Operation : Free shaft for mounting Actuator

* F/F length : 337mm                                                                         * Painting Color : Gray

* Valve Structure : Rubber seated concentric struction                     * Seat Structure : NBR lined

* Suitable Temperature : -29°C ~ 110°C                                            * Suitale Pressure : PN≤10Bar

* Provide Matching Flanges and bolts : Yes                                      * Function : Throttle

* Body : Ductile Iron                                                                           * Disc : A351-CF8M

* Seat : Material NBR                                                                        * Stem : AISI410

* Manufacture standard : EN 593                                                      * End flanges dimension :EN 1092-1


微信图片_20191102135208QQ图片20191102171935


Material Characteristics

DI Butterfly Valve material has two kinds of iron: cast iron and ductile iron

Ductile iron has a strength advantage over cast iron. Ductile iron has a tensile strength of 60K, while cast iron has a tensile strength of only 31K. Ductile iron has a yield strength of 40K, while cast iron has no yield strength and eventual fracture. Strength Ductile Iron - The cost ratio is far superior to cast iron.

In most applications, such as water, brine, steam, etc., ductile iron is superior to steel in corrosion resistance and oxidation resistance. Due to the microscopic structure of ductile iron, the anti-vibration performance is weakened and the toughness is superior to steel, so it is more conducive to reducing the pressure.


With advanced technology, high-quality raw materials, and professional quality, our Ductile Cast Iron Di Ci Stainless Steel Barss EPDM Seat Water Resilient Wafer Lug Lugged Type Double Flange Industrial Butterfly Valve has exported to many countries and regions in the world, and has won unanimous praise in the market. Our company always believes that there are customers after customers and the beginning of service is the beginning of sales. Adhering to the principle of 'Enterprising and Truth-Seeking, Preciseness and Unity', with technology as the core, our company continues to innovate, dedicated to providing you with the highest cost-effective products and meticulous after-sales service.

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