Pn16 DN200 EPDM Seat Di Semi-Lug Butterfly Valve

Pn16 DN200 EPDM Seat Di Semi-Lug Butterfly Valve

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

Product Details

Our company continuously adjusts and optimizes its operating products, strengthens market marketing and expansion, and has a large number of stable customers in the development of the Lug Triple Offset Butterfly Valve, LUG Double Offset Butterfly Valve, Pneumatic Ball Valve industry by virtue of advanced management methods, sensitive market information and comprehensive service. Our company abides by the quality policy of 'quality first, striving for perfection'. Our products have been affirmed by many parties. Our products are all over the world and have become the best in the same trade. In line with the quality policy of 'striving for quality, excellent service', we give full play to our strong R&D advantages to provide customers with excellent products and better services. Our company is committed to creating a first-class brand, establishing a good image of integrity, and providing high-quality services for consumers at home and abroad. We will communicate and work closely with the industry, and strive to improve product technology to reduce costs and increase efficiency.

【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 continue to innovate according to the needs of our customers, conduct transparent cooperation with our partners, and provide customers with the best comprehensive solutions and services in the field of Pn16 DN200 EPDM Seat Di Semi-Lug Butterfly Valve. We are with great passion and sincerity to further fulfill our global customers' needs with good quality and design innovation. We always pay attention to the latest developments in the industry and will always adhere to the concept of innovation, quality, and integrity.

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