Di Body Four Hole Rubber Seal Wafer Butterfly Valve with Ce Approval

Di Body Four Hole Rubber Seal Wafer Butterfly Valve with Ce Approval

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

Product Details

After years of continuous innovation and development, we have grown into a DIN Butterfly Valve, Metal To Metal Butterfly Valve, API Butterfly Valve supplier integrating design, research and development, production and sales. What hasn't changed is our distinct company culture based on the belief that every individual matters and has something unique to contribute. Our company has strong economic strength and offers excellent sale service. We have a deep understanding of the meaning of 'customer-oriented', and will 'service' throughout every detail of the company's operation and management, so as to win extensive trust and support from customers. Our company has many years of industry experience, through years of research and development, we have created our own brand.

【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 our professional knowledge and commitment to the market, we position ourselves as a trusted business partner of our customers to meet customer needs by providing reliable and innovative Di Body Four Hole Rubber Seal Wafer Butterfly Valve with Ce Approval. We emphasize the cooperation, mutual encouragement, and continuous improvement of self-qualification among employees, so as to promote the sustainable development of the company. We strictly operate every proceduress in the production process, aiming to provide you with reliable products and quality services.

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