Casting butterfly valve Hydraulic Valves rubber seated with low pressure
Specifications
Hydraulic control butterfly valve
Flange type
rubber seated
Operated with counter weight and hydraulic cylinder
1. Size, pressure, medim and temp. range as listed below:
|
Size |
DN100 to DN4000 |
|
Pressure |
PN10, PN16, PN25, PN40 |
|
Suitablem |
water, and other weak corrosive liquid etc. |
|
Temp. |
-10~120°C |
2. Standard items:
|
Description |
Standard |
|
Design and manufacture |
EN593 |
|
Face to face |
ISO5752 series14, EN558-1 series 14, DIN3202 F4 |
|
Flange and drilling |
ISO7005-2, EN1092, DIN2501 |
|
Pressure test |
EN12266 ISO5208 |
|
Top flange of bare shaft valve |
ISO5211 |
|
Top flange on worm gearbox for e-actuator |
ISO5210 |
3. Main part material items:
|
Name |
Material |
|
Body |
ductile cast iron, WCB, stainless steel |
|
Disc |
ductile cast iron, WCB, stainless steel, Al-bronze |
|
Stem |
SS420, SS431 |
|
Disc seat ring |
EPDM,NBR,VITON |
|
Body seat ring |
SS304 |
|
Retainer |
SS304, SS316 |
|
Shaft bearing |
Al-bronze, self-lubricating bearing |
|
Bolt & nuts |
8.8 grade galvanized, SS304 |
|
Coating |
epoxy coating, thickness: min. 250 microns, color code: RAl5015, 5017, 5010, and etc. |
Notes: Other materials are available on request
4. Operating mode: lever, counter weight, hydrualic cylinder, and pack unit.
