High-Quality Lug type Butterfly valve Suppliers, Manufacturers

Its key feature is the lug design—threaded lugs (or ears) cast into the valve body, which allow it to be bolted directly to pipeline flanges on both sides without relying on the pipeline’s flange bolts for support. This design enables easy installation, removal, or maintenance of the valve without disconnecting the entire pipeline, making it suitable for systems where isolation is needed.

Product Description

Available as a tested package with a wide range of electric and pneumatic actuators and accessories to fit any application.

Ductile Iron Body
SS 304 Disc
EPDM Seat
100/200 PSI Close Off
Sizes 2″ to 30″

Implementations

The Series has been thoughtfully designed and optioned to cover most common butterfly valve applications. The Series has been successfully specified and installed in commercial heating and air conditioning applications including chilled water, makeup water, and other water applications.

Industrial applications such as sea water, food and beverage, paper and pulp, and even municipal water or air lines can easily be handled by the Series resilient seat butterfly valve.

A Valve for Every Application

Tianjin TOP offers the Series Butterfly valve with thousands of operators and actuator options that make it the go to solution. The availability of different pressure class ratings as well as materials make it a versatile solution.

Every application is different, and Tianjin Top or your authorized reseller are here to help you with an valve and actuator assembly to fit your needs.

The Series are available with simple options such as lever or gear operators all the way to complex solar powered or spring return electric units.

Additionally Tianjin Top offered in a 3-way butterfly valve assembly, an economical and efficient alternative to expensive hard to operate ball valves.

We can help you find your Valve Solution.

Additional Product Information

Stem design

Available in square shaft for easy mounting of actuators, levers and gear operators.

Top flange

Conforms to ISO 5211 for the mounting of actuators, levers and gear operators.

One piece shaft

Maintains disc position.

Resilient seat surface

Eliminates the need for gaskets on flanges.

Shaft pins

Enables a vibration free connection between the shaft and the disc.

Bi-directional secured seat

Phenolic backed seat is bi-directional and blow out proof.

O ring seal

Provides a seal to interior stem and bushings.

Bushings

Provide correct alignment of shaft through the body and reduces torque.

Stem seal

Positive seal in both directions to prevent leakage.

Disc edge

Smooth finished disc edge provides superior seal, reduces valve torque and provides bubble tight shutoff.

Bi-directional body & seat design

Suitable for bi-directional use at full rated pressure.

Backed seat support

Prevents stem leakage and high valve torque from poor installation.

Dead end service option

Available with special dead end service option that allows installation of valve on discharge/intake pipes with no downstream pipe or flange.

classification-by-connection-method

Packaging

Frequently Asked Questions

What are the standard configurations and sizes available?
The Series valves feature a ductile iron body, SS 304 disc, EPDM resilient seat, and offer 100/200 PSI close-off performance across a wide size range from 2″ to 30″.
Which industrial and commercial applications can this valve support?
It is suitable for commercial HVAC systems (chilled water, makeup water) as well as demanding industrial applications such as seawater, food and beverage processing, paper and pulp, and municipal water or air lines.
Does the valve require extra flange gaskets during installation?
No, the resilient seat surface design eliminates the need for separate flange gaskets, creating an efficient and reliable seal directly against mating flanges.
What actuator mounting standard is supported?
The top flange fully conforms to ISO 5211 with a square shaft design, allowing standardized and effortless mounting of manual levers, gear operators, and pneumatic or electric actuators.
Can this butterfly valve be configured for dead-end service?
Yes, a dead end service option is available that allows installation on discharge or intake pipelines without requiring a downstream pipe or flange.
Are multi-way configurations available?
Yes, Tianjin TOP offers 3-way butterfly valve assemblies, which serve as an economical, efficient, and easy-to-operate alternative to costly high-torque ball valves.

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