Ductile Iron Doulbe Air Valve For Drinking Water

Loading Port:Tianjin

Payment Terms:TT OR LC

Min Order Qty:2 set

Supply Capability:1000 set/month

Product Description:

Wafer body style fits between FF or RF flanges
Upper and lower PTFE thrust washers
Dual plate Valves give maximum strength with minimum opening time
Torsion springs assist Valve closure, preventing flow reversal
Thrust washer reduce friction and wear of Valve plate hinges

Technical Data

SizeDN40-DN800
Working PressurePN10/PN16
Face to FaceDIN 3202-K3
Flange DrillingANSI B16.1 Class125,EN1092-PN10/PN16
Inspection and TestAPI 598

﹡For all available general design, face to face standard and flange drilling,please kindly contact CNBM directly.

Materials of Parts

PartsDescriptionMaterial
1BodyCast Iron/Ductile Iron/WCB
2DiscStainless Steel/Bronze/Ductile Iron
3ShaftStainless Steel
4SpringStainless Steel
5WasherPTFE
6SeatEPDM/NBR
7GasketPTFE
8Hex NutCast Steel

﹡For other material request,please kindly contact CNBM directly.

Dimensions

SizeLDD1D2R
DNNPSDIN PN10DIN PN16
401-1/2"43787857/25
502"43107107654027
652-1/2"46127127806035
803"64142142947042
1004"641621621178850
1255"7019219214511564
1506"7621821817113477
2008"89273273224182102.5
25010"114328328265220125
30012"114378378310260146
35014"127438444360298170
40016"140489489410350195
45018"152539555450385215
50020"152594617505438238
60024"178695734624.5538292
70028"229810804720662345
80032"241917911825762394

﹡For special Stem head dimensions,please kindly contact CNBM directly.