concentric butterfly valve with double shafts

Product Description

Concentric Butterfly Valve:
1.Valve Standards:Complies with EN**3/BS***5/MSS SP**7;

2.Working pressure and temperature:
Size DN*0 to DN**0,working pressure PN*6/Class **5;
Size DN*0 to DN**0,working pressure PN*0/Class **0;
Size DN*0 to DN**0,working pressure PN*5/Class **0;
Temperature from**0℃ to *2℃ for NBR liner;
Temperature from**0℃ to **0℃ for Viton liner;

3.Top Flange:Complies with ISO ***1/1;

4.Flange Types:
EN*****2 PN*0/PN*6/PN*5,ANSI B*6.1 Class **5;
ANSI B*6.2 Class**0,BS *0 Table D/E,JIS *0K/*6K;

5.Operator:Handlever of worm gear operator;

Main Materials:
Part Name         Material                                                                 ASTM Spec.
Body                    Cast Iron/Ductile Iron                                         A**6 Class B/A**6 *******2
Shaft                    Stainless Steel                                                   AISI **0
Disc                     Stainless Steel/Bronze/                                     A**1 CF8/ B*2 C****0
                             Ductile Iron Chrome Plated or FBE coated    A**6 *******2
Bushing              PTFE                                                                      Commercial
Liner                    EPDM/NBR/Viton                                                  Commercial
O-ring                  EPDM/NBR/Viton                                                  Commercial