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dn50-dn400 pn16 Ductile Iron swing check valve for water
Specifications:
Nominal pressue (MPa) | 1.0 | 1.6 | |
Nominal diameter(mm) | 50-600 | 50-600 | |
Test pressure | Shell | 1.5 | 2.4 |
(MPa) | Seal | 1.1 | 1.76 |
Applicable temperature | 150 | ||
Applicable medium | Fresh 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 |
DIN3202 | DIN2533&EN1092 | DIN3202 F6 |
|
Material:
| N0. | Part Name | Material |
| 1 | Body | Cast Iron |
| 2 | Seat Ring | Cast Bronze |
| 3 | Disc | Cast Iron |
| 4 | Disc Ring | Cast Bronze |
| 5 | Body Gasket | EPDM |
| 6 | Bonnet | Cast Iron |
| 7 | Identification Plate | Alumium |
| 8 | Botts | Steel |
Application:
Chemicals, air, water, steam, oil, acids, salts ect
Features:
1. Small in size, light in weight, compact in structure,easy in maintenance.
2. Two torsion springs are used excreting on each of the pair valve plates,which close the plates quickly
And automatically.
3. The quick-close action prevents the medium from flowing back and eliminates water hammer effect.
4. Short body structure length and good rigidity.
5. This valve is tightly sealed, without leakage under the pressure water test.
6. Safe and reliable in operation,high interference-resistance.



IMGV---Tianjin Union Valve Co., Ltd. is a professional valve manufacturer with high quality products and internal management standards. It has a high reputation in the foundry industry. Our company has a modern factory, advanced manufacturing processing and testing equipment, strong technical force.
We have More than 200 employees, more than 30 years of professional experience, skilled technicians and operators, the products passed ISO 9001:2015 and CE certification, our main products are concentric butterfly valve,eccentric butterfly valve, triple-eccentric butterfly valve, soft seat gate valve, ball valve, check valve, Y-strainer, rubber joints, etc. With product quality and perfect service system, it is sold in dozens of countries and regions such as Europe, America, Southeast Asia, Middle East, Australia, North Africa, South Korea, Hong Kong,Taiwan and so on. Our company's purpose is: professional and technical support, perfect after-sales service!
We welcome you to contact us for more information and look forward to working with you!

1. Q: Are you a manufacturer or trading company ?
A: we are valve manufacturer and factory ,and not trading company.
2. Q: Do you have agent or representative abroad?
A: We dont have agent abroad,please contact us to purchase valves
from TIANJIN UNION VALVE CO.,LTD. directly.
3. Q: What's your product range?
A: We can produce Butterfly valve,Gate valve,Check valve,Y strainer,Rubber Joint
by ISO/ANSI/DIN/JIS/ EN/GOST/AS standard.
4. Q: Is there any stock in your factory? and how about your lead time?
A: We stock valves with normal sizes. The lead time depends on your quantity,
generally 30-35 days.
5. Q: Which countries do you export to ?
A: We export directly to vast majority of countries in the world.
6. Q: What certificates will you provide ?
A: We can provide CE/ ISO / WRAS
7. After-sales service
18 monthes year warranty for all kinds of products
As an experienced manufacturer, you can rest assured of the quality and sales service
8. Payment
T/T, L/C, OA, D/P, D/A
9.Transportation
Transported by DHL, UPS, EMS, Fedex, SF, by Air, by Sea
10. Do you provide free sample?
Free sample is ok for us.
11. Do you accept custom design on size?
Yes, if the size is reasonable

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