Triple Eccentric Flange Butterfly Valve

Size: 4″~104″(DN100~DN2600)
Design Standard: BS EN 593, API 609
Face to Face: BS EN 558 Series 13
Connection Standard:BS EN 1092 PN10/PN16, ASME B 16.1 CL 125
Top Flange Standard: ISO 5211
Pressure Rating: PN10, PN16, 175PSI,200PSI,250PSI,300PSI
Surface Treatment: ANSI/AWWA C550
Medium: Water, gas etc.
Certificate:WRAS, ACS, CE, NSF/ANSI 61, NSF/ANSI 372

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Product Description

Products Details

What is the triple eccentric Flange butterfly valve?

The triple eccentric flange butterfly valve is an advanced version of the eccentric butterfly valve, featuring three eccentric offsets in its design. This valve is engineered to provide superior performance, particularly in demanding applications that require tight shut-off, high pressure, and high temperatures. The triple eccentric metal hard-sealed flanged butterfly valve is a kind of manual valve with three eccentric flange connection and metal sealing, which is axially off-center, radially off-center, and the center surface of the valve seat is off-center.

Product Drawing

Main technical parameters
Nominal pressure (Mpa) Strength test MPa Seal test MPa Applicable temperature (℃) Applicable medium
1 1.5 1.1 ≤300℃ Water, gas, oil, hot air, etc.
1.6 2.4 1.76
2.5 3.8 2.75


Material of main parts
Body, butterfly plate Stem Sealing ring Filler
Cast steel, stainless steel Stainless steel Stainless steel Flexible graphite

Key Characteristics and Benefits of the Triple Eccentric Flange Butterfly Valve

Three Eccentric Offsets: Unlike the double eccentric valve, which has two offsets, the triple eccentric valve incorporates three offsets: one in the shaft, one in the disc rotation, and one in the sealing geometry. This unique design reduces wear and friction, enhancing the valve’s longevity and reliability.

Metal Seating: Triple eccentric valves often feature metal-to-metal sealing, which offers excellent durability and performance under extreme conditions, including high temperatures and pressures. This type of sealing provides tight shut-off, minimizing leakage in critical applications.

High Performance: Triple eccentric valves are known for their superior performance characteristics, including tight sealing, low torque requirements, and precise flow control. They are suitable for a wide range of industries, including oil and gas, petrochemical, power generation, and refining.

Malleable Iron SCC Short Compression Coupling NPT Thread

Application and Case

Products are used in fire protection system, water system, HVAC system, plumbing, gas system, irrigation system, etc.These products are used in many projects , such as China Taiwanese Building 101, Xiamen Building,Wuhan Expo Building and other famous landmark projects.


1. What is the minimum quantity of the order?
Answer: The purchase volume of mixed products is 4 tons

2. How long is the delivery time of the order?
Answer: The delivery time for general orders is about 30 days. If the order is urgent and we have stock, around 7 days.

3. What payment methods do you accept?
Answer: We accept payment terms such as TT, L/C, DP, Western Union, Paypal, etc.

4. Where is your departure port of shipment? Is it possible to deliver to the designated warehouse?
Answer: The port of departure of our goods is generally Tianjin Port or Qingdao Port. We can transport the goods to designated warehouses, such as Yiwu, Guangzhou, etc.

5. What certificates do your products have?
Answer: Our products have FM/UL certificates, and we cooperate with third-party quality inspection certification before the factory, such as SGS,TUV

6.What are the series of your products?
Answer: Our products are divided into heavy series, medium series and light series according to different markets and standards. In order to buy more competitive products for you, please communicate your purchasing needs with the salesperson.

7. Do product packaging cartons and labels support customization?
Answer: Packaging cartons and labels can be customized according to customer requirements.

8.Does the purchased product support customization?
Answer: The product supports customization, but there are purchase quantity requirements and mold costs. For details, please consult the salesperson.

9.What are the packaging methods of the product?
Answer: The packaging of the product includes carton packaging, pallet packaging, wooden box packaging, and woven bag packaging.