Marine Center Butterfly Valve
Marine Bronze Butterfly Valve
Applicable medium
Applicable medium：Fresh water,sea water,air,raw oil and product oil in the temprature under70℃
Applicable Scope:Used in trade such as marine,petroleum,metallurgy and food.
GB2555-81 Flange connection standard.
Operating Type of Butterfly Valve
|
Code |
Operating Type |
Code |
Operating Type |
|
A |
Handle Manual Valve |
D |
Hydraulic Valve |
|
B |
Handle Actuator and Spindle Extension Valve |
E |
Air-operated Valve |
|
C |
Worm Actuator Valve |
X |
Helix Manual Valve |
|
M |
Electric Controlled Valve |
|
|
Material of the butterfly
|
Parts Name |
Material |
Code |
|
Body |
Carbon steel |
G |
|
Globe cast iron |
M |
|
Greay cast iron |
T |
|
Bronze |
Q |
|
Stainless steel |
B |
|
Disc |
Bronze
Stainless steel |
|
|
Seat |
Nitrile butadiene rubber |
N |
|
Fluorine rubber |
F |
|
乙丙橡胶 Ethylene propylene rubber |
E |
Instruction
1. Wafer butterfly valve are generally used in pipeline ,so there is no mark on the lable.If flange butterfly valves are chosen, “F”should be added before the code name of relevant driven type to show in order.
2. If the live axle of the valve needs to be lengthen, “C”should be added before the code name of relevant driven type to show in order,and the necessary length should be marked.
3. The petrol or other medium in the temperature of 70℃-170℃,the sealing ring of FPM material should be chosen.
4. Fluorine rubber or Nitrile butadiene rubber is not suitable to the medium of Liquefied petroleum Gas.
GB/T3036-94 GB/T3037-94 V531
