API ANSI DIN JIS BS Standard Control Butterfly Valve for Chemical Industry

• Standard: ISO
• Surface Treatment: Spray Paint
• Transport Package: Wooden Case Packaging
• Model NO.: customized
• Specification: Customized
• Trademark: OZEANHYDRAULIK
• Origin: Shanxi, China
• HS Code: 8481201000
• Production Capacity: 5000/Year

Product Description

Products Model No.

Products	Model No.
Butterfly Valve	D71X-16 DN40
Butterfly Valve	D71X-16 DN50
Butterfly Valve	D71X-16 DN65
Butterfly Valve	D71X-16 DN80
Butterfly Valve	D71X-10 DN100D
Butterfly Valve	D71X-16C DN50

Butterfly Valve Technical Description

1. Structural Principle

The disc of a hand-operated butterfly valve is installed along the pipeline's diameter. Within the cylindrical passage of the valve body, the disc rotates around its axis with a 0°-90° range of motion. At 90° rotation, the valve is fully open. These valves are typically installed horizontally.

 

2. Key Features

• Simple design, compact size, and light weight (minimal components).

• Quick 90° operation for fast open/close cycles with excellent flow control.

• Low pressure drop: When fully open, the disc thickness is the only flow obstruction, ensuring minimal resistance.
  
   

  3. Seal Types

  Elastic Seal (Soft Seat)	Metal Seal (Hard Seat)
  - Seal ring embedded in valve body or disc periphery - Limited temperature tolerance	- Longer lifespan - Higher temperature resistance - Difficult to achieve zero leakage

• 4. Application Guidelines

• For flow control: Precise sizing and type selection are critical.

• Ideal for large diameters due to structural advantages.

• Industries: Oil, gas, chemical, water treatment, and power plant cooling systems.
   

• 5. Common Types

• Wafer Type: Mounted between pipeline flanges with double-end bolts.

• Flanged Type: Features integral flanges bolted directly to pipeline flanges.
  
   

  Technical Notes:

• Horizontal installation is standard unless specified otherwise.

• Material options (e.g., EPDM for seals, CF8M for corrosive media) should align with operational requirements.
  
  

  Nominal Diameter		Face-to-Face Dimension	Handwheel Length	Overall Dimensions (Reference)
  DN	in	L	L1	H	H1	B
  50	2	45	230	220	90	88
  65	2.5	46	230	230	90	88
  80	3	48	230	230	90	88
  100	4	55	250	300	100	108
  125	5	59	260	350	110	114

  
  Company Information
• Ocean Hydraulic Group was established in 2001 and specializes in the design and manufacturing of automation equipment. The company customizes various industrial products, including high-precision, large-diameter hydraulic cylinders, hydraulic systems (Hydraulic power units), mud gun and tapping drill machines, slag skimmer machines, ladle tilting devices, extrusion machines, and automotive modification components, as well as steel structural components and riveted and welded components. The factory covers an area of over 20,000 square meters. Located just 500 kilometers from Beijing and Tianjin Ports and only 15 minutes from Taiyuan International Airport, Ocean Hydraulic has provided more than 10,000 sets of specialized equipment worldwide. Feel free to contact us at any time. 
•  
•