What is Resilient Seated Butterfly Valve Lug Type?

Resilient Seated Butterfly Valve,is also referred to as “concentric”,”rubber lined” and “rubber seated” butterfly valve,has a rubber (or resilient) seat between the external diameter of the disc and the internal wall of the valve.

Butterfly valve is a quarter-turn valve that rotates 90 degrees to open or close the media flow. It has a circular disc, also known as the butterfly, found at the center of the body that functions as the closing mechanism of the valve. The disc is connected to an actuator or handle through the shaft, which goes through from the disc to the top of the valve body.

The movement of the disc will determine the position of the butterfly valve.The resilient seated butterfly valve lug type can work as isolating valve if the disc rotates a full 90-degree turn, the valve is completely opened or closed.

Butterfly valve is also used as flow regulalting valve,if the disc does not rotate to a full quarter-turn, it means the valve is partially open,we can regulate the flow of fluids by various openning angle.

(CV/KV chart of resilient seated butterfly valve is available on request)

Resilient Seated Butterfly Valve Lug type,the most compact design with short face to face.it’s fit between two flanges,with studs passing from one flange through other. The valve is held in place and sealed with gasket by the tension of studs.A resilient seated butterfly valve lug type is a lightweight, maintenance-free, cost-effective, and reliable solution to various applications.

Resilient Seated Butterfly Valve Lug type,is usually used where the valve is at the end of the pipe since there is no 2nd flange to secure the studs. Instead, lugs are cast on the valve with tapped holes which matches the bolt pattern for the size and pressure classification of the flange. Bolts are passed through the flange holes and are threaded into tapped holes of the lug.

Main Features of NORTECH resilient seated butterfly valve lug type

WHY TO CHOOSE US?

• Quality and service:more than 20 years of experiences of OEM/ODM services for leading european valve companies.
• Quick delivery,ready for shipment 1-4 weeks,with considerate stock of resilient seated butterfly valves and components
• Quality guarantee 12- 24 months for resilient seated butterfly valves
• Quality control for each piece of butterfly valve

Main features of resilient seated butterfly valves lug type

• Compact construction results in low weight, less space in storage and installation.
• Centric shaft position,100% bi-directional bubble tightness,which makes installation acceptable at any direction.
• Full bore body gives low resistance to flow.
• No cavities in the flow passage,which makes it easy to clean and disinfect for potable water system etc.
• Rubber lined internally in the body makes fluid not to contact the body.
• Pinless disc design is helpful to prevent the leakage point on the disc.
• ISO 5211 top flange is convinient for easy automation and retrofitting of actuator.
• Low operating torques results in easy operation and economical actuator selection.
• PTFE lined bearings are designed for anti-friction and wear,no lubrication is required.
• Inserted lining to the body, liner easy to replace,no corrosion between body and lining, suitable for end of line use.

Resilient seated butterfly valve lug type design features of pinless disc

Types of Operation for Resilient seated butterfly valves lug type

Technical specification of resilient seated butterfly valves lug type

Standards:

Main parts materials of resilient seated butterfly valves lug type:

Valve body materials of resilient seated butterfly valves

Valve disc materials of resilient seated butterfly valve lug type

Rubber sleeve liner of resilient seated butterfly valve lug type

Product Application:

Where is the resilient seated butterfly valve wafer type used?