PRODUCT
6inch worm gear fully lugged wafer butterfly valve
SIZE : DN40-350
Desgin Standard : EN593, API609 ,EN5155, EN1092 , ISO5211
Pressure : PN10/PN16 /150LB
Face to Face : DIN558-1, API609, DIN3202, ISO 5752.
Test Stanard : 12266-1,ISO5208, API598
Top Flange : ISO521
Operated : Gear Box , Lever , electrical /pneumatic actuator
Specifications:
|
Nominal pressue (MPa) |
1.0 |
1.6 |
|
|
Nominal diameter(mm) |
50-1000 |
50-1000 |
|
|
Test pressure |
Shell |
1.5 |
2.4 |
|
(MPa) |
Seal |
1.1 |
1.76 |
|
Applicable temperature |
150 |
||
|
Applicable medium |
water, Sewage, Sea water, Air, Vapor, Food, Medicine, Oils, Acids, |
||
|
Operating mode |
manual, worm gear, pneumatic, electric, etc. |
||
Standards:
|
Design & Manufacture |
Flange Connection |
Face to Face Dimension |
Test & Inspection |
|
EN593 API609 EN5155 EN1092
|
ISO5208 |
DIN558-1, API609 DIN3202, ISO5752 |
12266-1 ISO5208 API598 |
Material:
|
No. |
Part Name |
Material |
|
1 |
Body |
Carbon Steel/Stainless Steel/Cast Iron/Ductile Iron/ Al-Bronze |
|
2 |
Disc |
Al-Bronze/CF8M/Ductile iron/WCB |
|
3 |
Seat |
EPDM/PEFE/Buna/NBR/Hypalon |
|
4 |
Stem |
Carbon Steel/SS416/Alloy |
|
5 |
Bushing |
PTFE/Lubricating |
|
6 |
O ring |
EPDM/PEFE/Buna/NBR/Hypalon |
|
7 |
Pin |
SS316/SS416/SS304 |
Features:
1. Small in size, light in weight, easy installation and maintenance.
2. Simple and compact construction, quick 90 degree on-off operation.
3. Minimized operating torque, energy saving.
4. Flow curve tending to straight line, excellent regulation performance.
5. Long service life, standing the test of tens thousands opening/closing operations.
6. Wide selection of materials, applicable to various medium.
There are two types of lug-type butterfly valves: pressure through holes and threaded holes.
1. The installation method of lug adjustment for butterfly through-type pressure hole is the
same as that of clamped butterfly adjustment. Their stability is not as good as flange type;
2.The installation method of lug valves with threaded holes is different from that of wafer type and flange type.
The pressure hole of lug type butterfly valve is equivalent to a bolt. When connecting to the pipe flange,
the bolt method plate is penetrated and tightened directly. The pressure hole of the lug-type butterfly valve is sufficient,
and the bolts at the flange end are tightened with bolts. This kind of installation method is even more stable than the flange butterfly valve.
