Ci/Di/Wcb/CF8 Wafer Butterfly Valve with EPDM/PTFE Seat

Ci/Di/Wcb/CF8 Wafer Butterfly Valve with EPDM/PTFE Seat

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

Product Details

In order to better develop our DI Butterfly Valve, Bidirectional Triple Offset Butterfly Valve, Metal To Metal Butterfly Valve, we continuously gather high-quality and high-tech talents to form a team of technical talents for development and research. We have a complete range of products, and customized equipment is available for users to choose from. With the development of the economy and society, customers are more and more dissatisfied with stereotyped products, the voice of the call to individualization is increasing. We take the client first and sincere cooperation as our principle, and sincerely look forward to communicating and cooperating with you and developing together. Based on the concept of sincere production and management, we serve our customers wholeheartedly, and strive to achieve high quality, high efficiency, preferential prices and good service.

【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.


After years of accumulation and development, we have now become a comprehensive enterprise of Ci/Di/Wcb/CF8 Wafer Butterfly Valve with EPDM/PTFE Seat integrating R&D, production, supply and marketing, and customer service. In terms of production, we will strictly control the quality and emphasize the control from the source to the finished product, that is, the control of the entire production process from raw materials to finished products. Our excellent R&D team provides a broad operation and innovation platform for the increasingly complex needs of customers.

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