Delivery Time:3-5 days
Certification:CE,FCC,MSDS

Electric centerline butterfly valves

Summary

Electric center line butterfly valve is made up of butterfly valve and electric actuator, input control signal  (4~20mA or 1~5V DC) and single~phase power to control the operation. It is strong function, small, light,  reliable performance, simple matching, big flow capacity. It’s especially suitable for the viscous medium  which contains particles, fibrous nature of the occasion. It widely applies to industrial automatic control  system such as food, pro~environment, light industry, petroleum, paper making, chemical industry and  electricity.

Valve Body 

Nominal Diameter: 50~400mm

Nominal Pressure: PN1.0, 1.6, 2.5 MPa

Connection type: flange

Material: HT200 ZG251 ZG1Cr18Ni9 ZG0Cr17Ni12Mo2 

Medium temperature: Common temperature type:-20℃~+200℃  Ventilation type:-400℃~+450℃

Applicable medium: freshwater,seawater,food,gas,alcohols,salt,acid,alkali,oil,steam,air etc

The Optional Material of Component in Valve

Main parts	Material	Applicable specs	Main parts	Material	Applicable specs
Body	Ductilecastiron Graycastiron Cast steel Stainless steel	50mm-300mm 50mm-300mm 50mm-300mm 50mm-300mm	Stem	Stainless steel 416 Stainless steel 316 Stainless steel 304 WCB nickel-phosphorus-plated	50mm-300mm 50mm-300mm 50mm-300mm 50mm-300mm
Disc	Stainless steel CF8 Stainless steel CF8M Ductile iron nickel-phosphorus-plated Ductile iron covered iron Aluminum Bronze	50mm-300mm 50mm-300mm 50mm-300mm 50mm-300mm 50mm-300mm	Seat	NBR EPDM VITON SEP Heat-resistant EPDM Wear-resistant EPDM	50mm-300mm 50mm-300mm 50mm-300mm 50mm-300mm 50mm-300mm 50mm-300mm

Sealing for Medium, Temperature Form 

Sealing Material

Temperature

Type of medium and applicability

Prominent  features

fresh water

Sea  water

salts

Strong  base

Weak  base

Strong  acid AAacid  acid

Weak  acid

gas

alcohols

air

steam

oil

food

Valve  seat

NBR

-12℃~82℃

A

A

A

B

A

D

B

A

C

A

D

A

B

Oil-proof

EPT

-35℃~135℃

A

A

A

A

A

C

A

B

B

A

A

C

A

Anti-aging

Corrosion-resistant  EPDM

-35℃~160℃

A

A

A

A

A

C

A

B

B

A