End Connection: Flange

Actuator type: Lever Handle/Worm Gear

Stem position: Concentric

Seat Materials: EPDM/NBR/VITON

Body Materials: Cast iron/Ductile Iron

Pressure: PN10, PN16, Class125

Suitable temperature:– 40 ~ 225 ℃

Disc type: Ductile Iron, WCB, CF8,CF8M, Al-bronze C958

Stem Materials: Carbon steel/Ductile iron/SS416, SS304, SS316

Size Range: DN50-DN300

Flange Drilling Standard: ANSI B16.1 class125, BS4504 PN10/PN16, DIN2501 PN10/PN16

Design Standard: API 609, MSS SP-67

Package: wooden case with plastic layer, wooden pallets with plastic layer, steel crates.

SKU: Resilient Seated Flange Type Butterfly Valve Category:

1. Introduction

The Flange Type Butterfly Valve has a flanged body and raised rims to allow its installation between two flanged pipes with the same dimension as the valve. Generally, there are two types of flange butterfly valves: the single flange butterfly valve and the double flanged butterfly valve.

flange butterfly valve connection

The Double Flanged Butterfly Valve is our star product. In terms of this double flanged butterfly valve, the bolts are used to connect the flanges at both sides of the valve to the pipe flanges. Inside this cast iron or ductile iron flange butterfly valve, there’s a round vane or disc for operation: when the valve is open, the disc lays parallel to the pipe and the direction of the current; when the valve is closed, the disc is rotated to plug the pipe.

flange type concentric butterfly valve

According to the position of the stem, we have centerline butterfly valve and offset butterfly valves of flange type. The concentric type is the most common type and usually comes with soft sealing. Thus the flange style resilient seated butterfly valve is one of our most popular products.


2. Specifications

resilient seated flange style butterfly valve specifications


3. Applications:

Due to its end connection of flange type, this double flanged butterfly valve is very appropriate for heavy-duty applications: in particular, the cast iron flange butterfly valve and ductile iron flange butterfly valve can bear harsh and tough environments.

flange butterfly valve applications

Flanged Butterfly Valves for use in commercial and light industrial applications. Hot and cold domestic water, HVAC, Condenser and chilled water, compressed air, and vacuum services.

Our Flange Type Resilient Seated Butterfly Valve isn’t only used for controlling, regulating, and throttling flow. It’s also used for dead-end service.


4. Advantages of our products:

resilient seated flange type butterfly valve

Tight sealing: the resilient seated butterfly valve of flange type is featured by soft-sealing: though this resilient seat might age or wear, it offers a better sealing effect. It’s worth mentioning that the rubber seat of our valve is of high oil resistance.

Steady connection: thanks to this flange type of end connection: our double flanged butterfly valve is suitable for high-pressure piping: on each flange butterfly valve, there is a total of 8 body bolts that connect through threaded holes in the body of the valve. This flange-type end connection also helps to support the pipes.