API609 PN16 Cast iron Pinless lug butterfly vavle

Lug butterfly valves, with their bolted lug connections, are ideal for end-of-line use, often with a blind flange. They come in various designs and are versatile for flow control. Their robust connection minimizes thermal expansion issues, making them suitable for applications with significant temperature variations.

Product Details


The Lug Type Butterfly Valve differs from the Wafer Type by having lugs around its body for bolt connections, making it suitable for end-of-line service with a blind flange recommended. Available in both concentric and eccentric designs, the zero offset lug type is more common, often featuring resilient seats.


Lug-style butterfly valves can be used to open, close and control flow, and their unique end connection design allows them to be used as a stopper, a faucet that discharges at the end of a pipe. Lug-type butterfly valves are more suitable for applications with large temperature differences. Because lug-type butterfly valves are connected to the flanges on both sides by separate and shorter bolts, there is less chance of relaxation due to thermal expansion.




Face to FaceAPI609,BS5155,DIN3202,ISO5752
Mounting FlangeISO5211
Working PressurePN16(200PSI)
ApplicationWater works,Public facilities,Building Industry,Petrolem,Chemical,Steel,Metallurgy,Paper Making Industry,Foods,Beverage


1.Outstanding bidirectional sealing, low torque, 

2.Linear flow, excellent regulation, 

3.Simple flange installation, diverse sealing options, 

4.Integrated seat ring for longevity, 

5.Robust corrosion resistance, suitable for cutting and trimming.



 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.DN50 DN100 Ductile Iron Gearbox Grooved End Butterfly Valve

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!

DN50 DN100 Ductile Iron Gearbox Grooved End Butterfly ValveDN50 DN100 Ductile Iron Gearbox Grooved End Butterfly Valve DN50 DN100 Ductile Iron Gearbox Grooved End Butterfly Valve

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


3. Q: What's your product range?

A: We can produce Butterfly valve,Gate valve,Check valve,Y strainer,Rubber Joint


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

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