**Double Flange Type Concentric Butterfly Valve**

**Specifications:** Size: DN40-DN1000 Nominal Pressure: PN10/16, 150-300LB Working Temperature: -15°C to 135°C Suitable Media: Chemicals, air, water, steam, oil, acids, salts, and more **Standards:** - Design Standard: API609, BS EN593, GB/T12238 - Face to Face: API609, DIN3202, ISO5752, BS5155 - Flange Drilling: DIN2501 PN10/16, ANSI 125/150, BS4504, JIS, 5K10K - Top Flange: ISO5211 - Test Inspection: API598 **Material:** | Part | Material | |------|----------| | Body | Cast Iron, Ductile Iron, WCB, Stainless Steel | | Disc | Ductile Iron, WCB, Stainless Steel, AI-Bronze | | Stem | Stainless Steel, Carbon Steel, Monel | | Seat | EPDM, NBR, PTFE, VITON | | O-ring | EPDM, NBR | | Bushing | PTFE, Bronze | **Application:** This butterfly valve is widely used in chemical, industrial, water treatment, and household systems. It can handle a variety of media such as chemicals, air, water, steam, oil, acids, and salts. **Features:** - Compact and well-designed structure with easy installation and maintenance - Quick 90° operation with minimal torque required - Excellent flow control performance with a linear flow characteristic - Long service life capable of withstanding thousands of operations - Bubble-tight sealing under pressure testing - Wide range of materials available for different media and environments **Why Choose Us?** We offer competitive pricing while maintaining high-quality standards. Our factory has over 20 years of experience in manufacturing valves and is located in Jinnan District, Tianjin, China. We cover an area of 1,000–3,000 square meters with advanced production equipment and are certified by ISO 9001:2000 and CE. **Our Products:** We specialize in producing soft-sealed butterfly valves, gate valves, strainers, check valves, and more. With a strong R&D team and efficient management system, our products have been exported to the US, Canada, Europe, Japan, Australia, and other regions, achieving annual sales of over $10 million. **Our Services:** - Timely delivery of goods - Customization of company logos on valve bodies - Custom color options based on your requirements - Production of valves according to different international standards for various markets **Contact Us for More Information!** ![China Manufacturing Cast Iron Pneumatic Flange Type Butterfly Valve](http://i.bosscdn.com/uploads/16/05/35/e2baa6727a71b028dbd6367108.jpg) ![China Manufacturing Cast Iron Pneumatic Flange Type Butterfly Valve](http://i.bosscdn.com/uploads/7b/58/bc/896e3da1aa1030ee64aedaeede.jpg) ![China Manufacturing Cast Iron Pneumatic Flange Type Butterfly Valve](http://i.bosscdn.com/uploads/37/27/ea/676c11de574d1a9e1484dec723.jpg) ![China Manufacturing Cast Iron Pneumatic Flange Type Butterfly Valve](http://i.bosscdn.com/uploads/96/98/6e/2df5822db70875d5dff9b4ecfd.jpg) ![China Manufacturing Cast Iron Pneumatic Flange Type Butterfly Valve](http://i.bosscdn.com/uploads/be/00/a6/7c9c8397e95e8915991230896e.jpg) ![China Manufacturing Cast Iron Pneumatic Flange Type Butterfly Valve](http://i.bosscdn.com/uploads/4a/c5/34/d5f3badcc60e48952c43dabefc.jpg)

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Guangdong Jintai Titanium Industry Co.,ltd , https://www.pzhjintaitio2.com

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