Di Ci EPDM Ptfeductile Iron Lever Opreated Wafer Lug Butterfly Valve

Di Ci EPDM Ptfeductile Iron Lever Opreated Wafer Lug Butterfly Valve

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

Product Details

We make sure that all our Cast Steel Ball Valve, API 609 Double Offset Butterfly Valve, Metal-seated Butterfly Valve are rigorously debugged several times prior to leaving the factory to ensure that each customer receives high quality products. Aggressive price with top quality and satisfying support make us earned extra customers. We hope the new strategy will allow our company to adjust to the changing times and continue to grow and develop in fierce competition. We have the most advanced technology and systematic management with unique advantages in terms of quality and price. We feel that our warm and professional support will bring you pleasant surprises as perfectly as fortune.

【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.


Since the establishment of our company, we have been focusing on the Di Ci EPDM Ptfeductile Iron Lever Opreated Wafer Lug Butterfly Valve field. We pay attention to every request made by customers, fully consider every detail, actively do a good job of service, and provide customers with a full range of product solutions. We will increase the development of new products, continue to explore new areas, as always adhere to the 'pursuit of excellence, sincere to forever' principle, dedicated to the majority of customers. Should you have got any interest in our products and solutions, remember to never wait to call us.

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