Best Quality DIN F4 DN50-600 Cast Iron Di Rising Stem Resilient Seat Gate Valve Swing Check Valve Wafer Butterfly Valve Stop Valve

Best Quality DIN F4 DN50-600 Cast Iron Di Rising Stem Resilient Seat Gate Valve Swing Check Valve Wafer Butterfly Valve Stop Valve

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

Product Details

To constantly improve the management system by virtue of the rule of 'sincerely, good faith and quality are the base of enterprise development', we widely absorb the essence of related products internationally, and constantly develop new products to meet the demands of customers for PTFE Seated Butterfly Valve, Lever Butterfly Valve, Butt Weld Triple Offset Butterfly Valve. Our enterprise insists on innovation to promote the sustainable advancement of organization, and make us become the domestic high-quality suppliers. We are always looking forward to forming successful business relationships with new clients around the world. Our business activities and processes are engineered to make sure our customers have access to widest range of products with the shortest supply time lines. Quality is factory's lifestyle abide by the contract', conforms on the market requirement, joins from the market competition by its good quality likewise as provides more comprehensive and superb support for customers to let them become large winner.

【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 committed to provide Best Quality DIN F4 DN50-600 Cast Iron Di Rising Stem Resilient Seat Gate Valve Swing Check Valve Wafer Butterfly Valve Stop Valve that is reliable and simple to use relying on our scientific and process management, as well as continuous innovation and improvement. The working principles we insist on is, rigorous, innovative, pragmatic, enterprising, efficient, diligent and honest. Our company has always pursued the business philosophy of 'development by quality, navigation by science, and customer satisfaction as its purpose'.

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