Expansion Butterfly Valve

(0 reviews)

Get Price

(96) Views

(0) Contacts

Contact Company

Eun Kwang Inotech Co., Ltd.

Busan, South Korea

(297) Views

(0) Contacts

Intention of development
In case of replacement of old valve or broken-down, working process is complicated caused by flange rubber packing.
After removal of old valve or broken valve, it is impossible to input the new valve by interferences of rubber packing.
Accordingly, theprocess is very complicatedas stated.
Cutpiping, connectionflange welding,attachvalve, connectexpansionjoint .
These process lead stop of water supply long time along with big budget loss.
Inorder to improve these matters, wede signed.
This valve has not only expansional structure itself but also same face to face dimension of K.S specification.
(AWWA C207, BS 4504, DIN)
Therefore, withthis valve,notnecessary cuttingpiping, welding, flangeconnection,etc.
Itenables savingadditional materials,timelossandbudget.
Strong points of maintenance
●With simple valve structure, consist of a few parts lead rare defective points.
●Without any dismantling of installed pipes, it is possible to workout remove and installation.
● Expansion Butterfly valve prevent damages of Valve and piping from the deformation of heat or fluid impact
Composition & Structure
Specification
Composition
It consistsof Valve Body 1, Valve Body 2(movableflange, rubberpacking,guidering)
Structure
Insert rubber packing into the valve flange after separation of oneside flange itself.
Separated flange was made to stand working pressure sufficiently .
Inserted rubber packing into the flange role as a flange joint packing as well as preventing leakages completely.
It shuts off the any leakage seven for the long time use.
Operation of Expansion butterfly valve
Expansion Butterfly Valve Replacement Process
Assembly finished valve section
Movable flange was moved into the body inorder to insert easily to empty space of removed existing valve.
Moveof Movable flange
Movable flange was placed on the outside of valve body in order to connect piping flange.

                                                            Nominal Size
                                                            D200mm~D2800mm
                                                        
                                                            Working Pressure
                                                            7.5kgf/cm2 ~20kgf/cm2
                                                        
                                                            Connection
                                                            Flange rating : AWWA C207 , ANSI, DIN ,BS,etc
                                                        
                                                            Face to Face Dimensions
                                                            AWWA C504 standard, But other standard are available on request
                                                        
                                                            Type of-Fluid
                                                            Service Water, Sea Water
                                                        
                                                            Actuators
                                                            manually, electrically, pneumatic, headstock
                                                        
                                                            Materials body and valve disc
                                                            •KS D 4302(ductile cast iron) GCD 450  •KS D 4101(cast Steel) SC 410  •KS D 4103(Stainless steel Castings) SSC 13
                                                        
                                                            Body, Disc coating
                                                            •Basic : Liquid Epoxy  •Special : Lining, ceramic, the other materials are available on request

Features & Strong points of Expansion Butterfly valve

● It is possible to proceed removal , replacement even in case of small leakages.
● No more additional process of cut piping, welding, flange connection,etc make an easy installation.
● Very short installation time --Suitable fore mergency repair or replacement.
● Need minimum space.
● Cutting,Welding,expansionjoint,Flange of its additional materials& work are not necessary which lead saving big budget .