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Product Introduction |
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Butterfly Valve |
| Resilient-seated Expantion Wafer Type Butterfly Valve |
| Summarize |
| Employing the non-pinned stem/disc connection, has effectively reduced the internal leak-tightness of the metallic seal wafer type Butterfly Valve. Sealing automatical technology not only lower the operating torque, but also increace the products¡¯ reliability, furthermore it is very convenience for maintaining. This type of products kept non-leaking record in more than 50,000 times operation under pressure, which is far beyond the normal butterfly level. |
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| material of Parts |
No |
Names of parts |
Material |
1 |
Stem |
SS |
2 |
Retaining ring |
65Mn |
3 |
Thrust washer |
SS |
4 |
Bushing |
Lubricating Bronze |
5 |
O-ring |
EPDM NBR |
6 |
Bushing |
Lubricating Bronze |
7 |
Bushing |
Lubricating Bronze |
8 |
Disc |
Plated Ductile Iron, Dutile Iron Nylon Coating, Stainless Steel, Aluminum Bronze, Polyether chloride Coating |
9 |
Seat |
NBR,EPDM,PTFE,CR |
10 |
Body |
HT200,QT450,WCB,P,R |
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| performance |
Nominal Diameter DN mm(inch) (mm) |
DN50-DN1000 |
Nominal Pressure PN Mpa (MPa) |
1.0/1.6 |
Shell Testing (MPa) |
1.5/2.4 |
Sealing Testing (MPa) |
1.1/1.76 |
Working Temperature ( ¡æ ) |
-30-135 |
Suitable Mediums |
Water, sea water, oil, alkali, weak acid, salt, organic compound, and ect. |
Standard Material |
Body |
HT200,QT450 |
Disc |
PA11 Coating |
Seat |
EPDM,PTFE |
Stem |
45# |
Seal ring |
EPDM |
Outside Coating |
Epoxy Powder Coating |
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