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Double Flanged Butterfly Valve

1. Small in size, light in weight, easy installation and maintenance.
2. Simple and compact construction, quick 90 degree on-off operation.
3. Minimized operating torque, energy saving.
4. Flow curve tending to straight line, excellent regulation performance.
5. Long service life, standing the test of tens thousands opening/closing operations.
6. Wide selection of materials, applicable to various medium.

Quality Assurance

We have a dedicated quality control team and advanced testing equipment to ensure consistent product quality.

Timely Delivery

With reliable raw material suppliers and streamlined production processes, we guarantee on-time delivery.

Excellent After-Sales Service

Our team of valve experts provide impeccable after-sales support

Certifications

Our products hold up to 10 international authoritative certification certificates, ensuring compliance with global standards.

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Product Description – Double Flanged Butterfly Valve

The double flanged butterfly valve is a heavy-duty flow control solution widely used in engineering projects and municipal water systems. Featuring full-face flanges on both ends, this valve ensures a secure, leak-proof connection—ideal for pipelines requiring stable and long-term sealing performance.

Manufactured from high-strength materials and available in a range of sizes, it offers excellent resistance to pressure and corrosion, making it suitable for water treatment plants, pumping stations, HVAC systems, and industrial fluid control. The valve’s centered disc and streamlined flow path minimize pressure loss, while its robust construction allows for easy maintenance and long service life.

As one of China’s leading valve manufacturers, we offer customizable configurations to meet specific project requirements, including actuation types, sealing materials, and international flange standards. Whether you’re managing a new infrastructure build or upgrading existing systems, this double flanged butterfly valve delivers the reliability, durability, and performance your project demands.

Performance:

Nominal pressue (MPa) 1.0 1.6
Nominal diameter(mm) 50-1000 50-1000
Test pressure Shell 1.5 2.4
(MPa) Seal 1.1 1.76
Applicable temperature 150
Applicable medium Fresh water, Sewage, Sea water, Air, Vapor, Food, Medicine, Oils, Acids,
Alkalis, etc.
Operating mode manual, worm gear, pneumatic, electric, etc.

Standard:

Design & Manufacture Flange Connection Face to Face Dimension Test & Inspection
MSS SP-67
API609
EN593
DIN PN10/16/25; ANSI B 16.1
BS4504; ISO PN10/16
JIS B 2212/2213
BS 10 table D; BS 10 table E
API609
ISO5752 series 20
BS5155
API 598

Material List:

No. Part Name Material
1 Body Carbon Steel/Stainless Steel/Cast Iron/Ductile Iron/ Al-Bronze
2 Disc Carbon Steel/Stainless Steel/Cast Iron/Ductile Iron/ Al-Bronze
3 Seat EPDM, NBR, VITON, PTFE
4 Stem Carbon Steel/Stainless Steel314/Stainless Steel316
5 Bushing PTFE/Lubricating
6 O ring EPDM/PEFE/Buna/NBR/Hypalon
7 Pin SS316/SS416/SS304

U Type Butterfly Valve drawing

Dimensions:(mm)

U Type Butterfly Valve DIMENSIONS

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Double Flanged Butterfly Valve

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