Electric Wafer Hard Seal Butterfly Valve Model:WB-D973H

Electric Wafer Hard Seal Butterfly Valve Model: WB-D973H   Product Description   Feature: 1. Double eccentric structure, have the close tight sealing function, sealed performance is reliable. 2. High strength, large flow area, small flow resistance with frame structure .   Technology parameter :

Medium Temperature	-29 ~ 425°C Casting Steel,  -40 ~ 650°C Stainless Steel
Working Medium	Water, air, gas, weak corrosive fluids.
DN(mm)	50 ~ 1200
Nominal Pressure	PN0.6, 1.0, 1.6, 2.5Mpa

  Materials:

NO.	Name of parts	Materials
1	Body	WCB, AS, SS, QT4500
2	Disc	WCB, AS, SS, QT4500
3	Stem	2Cr13, SS, AS
4	Seal Ring	SS
5	Stem Packing	Flexible graphite

  Carried standard:

Manufacturer standard	JB/T 8527-97
Flange standard	GB9113-2000
Structure length standard	GB12221-89
Test standard	GB/T 13927-92

  Structures:   Our Services 1.R&D(Design according to clien's drawing and requirements).   2.Professional  mold manufacturer.   3.Molding parts ,such as plastic parts,rubber parts,electronic compoments,medical products,etc.   4.We will keep online every work day.   5.We will  reply your email and fax within 24 hours.   6.You may call us anytime if you have any question on our products.   7.If you have time in Ningbo.Sincerely welcome to visit us.Our factory is close to Ningbo port. FAQ Q1: What about the shipping methods?     A1:For  urgent order and light weight,you can choose the following express:UPS,FedEx,TNT,DHL,EMS ect.        For heavy weight,you can choose to deliver the goods by air or by sea to save cost.     Q2: What  about the payment methods?      A2:  We accept T/T,L/C for big amount,and for small amount,you can pay us by Paypal,Western Union,Moneygram, Escrow  ect.      Q3: Can I print our logo/barcode/unique QR code/series number on your products?       A3:Yes,of course.      Q4: Can I order some samples for our testing?      A4: Sure,we can arrange the sample to you by freight collect .For existing samples,1days and for  free, and for samples           with  your logo,3days and need sample cost,please understand.      Q5:Can you customized my products in special shape?       A5:Yes,we do OEM and ODM ,but for customized products ,we have a high MOQ and you need to stand the mould cost,           please understand!      Q6:How can you make sure we will receive the goods with high quality?      A6:Our QC team will inspect each batch of goods before delivery and all the raw material we used  are eco-friendly,we have           certificates  of CE,SGS,Rohs,EMS ect test. Company Information   For more details, please feel free to contact us!