Marine double flange cast steel butterfly valve
Product Description
Structure features
1. Butterfly valve has a simple structure, small volume, light weight and material consumption economic, small installation size, quick switch, 90 reciprocating rotary and low driving torque, etc, used for truncation, connecting and regulating medium in pipe, has good flow control characteristics and close the sealing performance
2. Butterfly valves can transport mud which accumulated the least liquid in the apertures, under low pressure, it can achieve good sealing performance. The regulating performance is good.
3. The streamline design of the butterfly plate, make the loss of the fluid resistance is small which is a kind of energy-saving products
4. Valve stem for stem structure, through conditioning processing, it has the good comprehensive mechanical properties and anti-corrosion characteristic, when the butterfly valve opening and closing the valve stem make rotation movement up and down and run, not only the valve stem packing is not easy to damage, but also possess reliable sealing performance. With the butterfly plate fixed cone pin, overhanging end to prevent rushed out of the design, in order to avoid broking out of the valve in the stem and disc joint.
5. The connection including the flange connection, clash connection, butt welding and lugs on the clip
6. With manual drive form, worm gear transmission, electric pneumatic, hydraulic electric hydraulic linkage actuator, which can realize remote control and automation
Advantages
1. Open/close convenient and rapid, saving effort and small fluid resistance, can often operation.
2. Simple structure, small dimension, length short structure, small volume, light weight, suitable for large diameter of the valve.
3. Can transport the mud accumulating the least liquid in the apertures
4. Under low pressure, can achieve good sealing.
5. Adjust the good performance.
6. Wide open seat effective circulation channel area is larger, the fluid resistance is small.
7. Open-close torque is small, due to the rotation axis disc basic equal role by the medium, and the torque in the opposite direction, thus opening and closing the case.
8. Sealing surface materials commonly used rubber plastic so low pressure sealing performance is good.
9. Easy installation.
10. Flexible operation and effort, can choose manual electric pneumatic hydraulic way.
Marine pneumatic stainless steel wafer butterfly valve;
Valves standard : GB,JB,JIS,API,CBM etc.
Material : cast steel,cast iron,cast copper,forged steel,stainless steel,plastics,etc.
Certification : CCS,LR,BV,ABS,DNV,GL,KR.
Main Products:
a) standard marine-purposed butterfly valve
b) blind plate valve
c) lifting stop valve
d) check valve
e) gate valve
f) sea valve
g) valve chest
h) quick close valve
i) storm valve
Additional Specification:
with nominal diameters of DN6MM-DN750MM,
Nominal pressure PN0.1Mpa-PN6.4Mpa;
Certificates:
It has certified by some authoritative ship classification societies such as CCS,GL,BV,DNV,KR,ABS,ISO9000:2000 Quality system;
Air pipe head is certified by CCS,KR,GL ISO9000:2000 Quality system.
How to order:
1) Mounting type:
2) Flange standard:S-ISO/J-JIS/G-GB etc.
3) Materials of valve seat: Buna-N rubber?
Fluorinel-containing Rubber?
or tetrafluoro thylene containing rubber?
4) Materials of Valve body:Cast steel?
Cast Iron?
Ductile cast iron?
Bronze?
Stainless steel?
5) Nominal diameter:DN(mm)
6) Nominal pressure PN (mpa)
7) Operating type:Handle manual?
Worm manual?
Spiral operating manual?
Electrodynamic type?
Pneumatic type?
hydraulic type?
8) Structure type:Centric Type?
Double eccentric type?
Audited Supplier 
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