Di Body Manual Rubber Lining Wafer Butterfly Valve

Di Body Manual Rubber Lining Wafer Butterfly Valve

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

Product Details

We continue to introduce high-quality Stainless Steel Ball Valve, Lug Triple Offset Butterfly Valve, Wafer Triple Offset Butterfly Valve suitable for the market, which has won praise and trust from customers abroad. By studying and developing new techniques, we are not only following but also leading fashion industry. In many years of production practice, we have always insisted on management and technological innovation, and we can provide customers with the best solutions and best quality services. With the concept of 'excellent quality and first-class service', we will meet the challenges of the market.

【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.


We are advancing courageously along the road of 'groupization, industrialization, specialization, and internationalization' and continue to contribute to the Di Body Manual Rubber Lining Wafer Butterfly Valve industry all over the world. They're about to make their finest effort to meet buyers need. We respect talents and focus on technology with the spirit of stability, development, loyalty, efficiency, unity and innovation.

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