China Factory DIN BS JIS Wcb Triple Offset Eccentric Butterfly Valve

• Media: Gas, Water, Steam
• Driving Mode: Electric, Manual
• Connection Form: Double Flange
• Structure: Centre Sealing
• Seal Form: Soft and Hard Sealing
• Valve Stem: Normal
• Model NO.: BVT-001
• Work Pressure: Low Pressure (Pn<1.6mpa)
• Working Temperature: Medium Temperature (120°C<T<450°C)
• Material of Seal Surface: Soft Weld
• Valve Body: Casting
• Standard: API609 En593 BS5155 En1092 ISO5211
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Delivery Time: 15-25 Days
• Disc Material: Di/Nylon/1.4469/1.4529/Saf2205/2507/CF8/CF8m etc
• Seat Material: NBR/EPDM/PTFE/Viton/Silicone etc
• Coating: Customized
• End Standard: Pn6/10/16/25/21/150lb/JIS5K/10K/As2129 Table D/E/F
• Materials: Carbon Steel, Stainless Steel, Aluminum Bronze
• Shutoff Tightness: Zero Leakage
• Transport Package: Wooden Case
• Specification: customized
• Trademark: Kamroo
• Origin: China
• HS Code: 8481804090
• Production Capacity: 10000PCS/Year

Product Description

Kamroo Valve offers a comprehensive range of Triple-offset Butterfly Valves in a variety of body styles and materials to address critical process requirements in diverse industries such as hydrocarbon, power, chemicals & fertiliser, water, etc. The product range covers valves in ASME classes up to 1500, in sizes up to 100" (2500 mm), in carbon steel, stainless steel and alloy steels, suitable for temperatures from -196°C to 538°C. Based on customer requirements, valves in higher pressure classes, larger sizes and other materials are also offered. 

 

The Double Offset Butterfly Valve is better suited for bubble-tight sealing, while the triple offset butterfly valve is better suited for high temperatures, high pressure, and abrasive media. In addition, this valve has a high sealing surface and requires less maintenance.

Triple-Offset valves use three offsets to create a high performance and low friction seal.

The fundamental feature of the valve design is the three offsets, these are highlighted in the 3D figure below:

Offset 1 - an offset between the shaft centreline and seat

Offset 2 - an offset between the centreline of the pipeline and the valve shaft

The valve shaft is offset from the centre line in both the X and Y axis, which makes up the first two offsets.

Offset 3 - An angular offset of the seating faces creating the conical geometry of the seat faces

The third offset consists of a conical angle on the sealing faces meaning the sealing faces only come into contact at the point of sealing.

Triple offset butterfly valves are commonly applicating in a variety of industries, including:

1. Oil and Gas: Triple offset butterfly valves applicate in the oil and gas industry. For pipeline isolation, compressor stations, and refining processes.
2. Chemical: Triple offset butterfly valves are popular in chemical plants for applications. Such as corrosive and abrasive fluid handling, high-temperature services, and toxic gas handling.
3. Power Generation: Triple offset butterfly valves play an important role in power generation. For applications such as steam isolation, turbine bypass, and cooling water control.

Main performance specifications

Nominal Diameter	nominal pressure	test pressure(MPa)			leakage rate	Temperature	Applicable Medium	Driving form
DN(mm)	PN(MPa)	strength test	Sealing test	Air tightness test	<0.1xDNmm³/s (in accordance with GB/T13927-92 standard	carbon steel -29 ºC~425 ºC Stainless steel -40 ºC~600 ºC	Air, water, steam, gas, oil products, and weakly corrosive media such as acids, alkalis, and salts	Worm gear transmission, pneumatic transmission, electric transmission