DN50-DN800 Worm Gear Double Flange Cast Iron Di Factory Butterfly Valve BS DIN ANSI JIS Check Valve Globe Valve Cheap Ss Ball Valves

DN50-DN800 Worm Gear Double Flange Cast Iron Di Factory Butterfly Valve BS DIN ANSI JIS Check Valve Globe Valve Cheap Ss Ball Valves

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

Product Details

We aim to create more value for Low Temperature Butterfly Valve, Water Butterfly Valve, 150LB Flanged Butterfly Valve. At present, we have established good strategic partnership with many enterprises, and have independent R&D team. At present, our company continuously develops new products, and carries out overall planning and comprehensive management of the enterprise with scientific and advanced management concepts. Our specialist engineering team will often be ready to serve you for consultation and feedback. With a wide range, good quality, reasonable prices and stylish designs, our solutions are extensively used in beauty and other industries.

【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 cutting-edge technology and a strict quality control system in this area, we can guarantee the excellence and outstanding quality of our DN50-DN800 Worm Gear Double Flange Cast Iron Di Factory Butterfly Valve BS DIN ANSI JIS Check Valve Globe Valve Cheap Ss Ball Valves. We start from innovation, aim to achieve the best user experience and maximize value creation to achieve industry development. Our company pursues excellence, continuously wins in the market competition, surpasses self in the introspection and surmounts mediocrity in the study.
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