Gas, Water, Steam
Manual, Electric, Hydralic, Pneumatic
Flange, Weld, Wafer
Centre Sealing
Metal and Hard Sealing
Normal
Low Pressure (Pn<1.6mpa)
Medium Temperature (120°C<T<450°C)
Hard Weld
Casting
API609 En593 BS5155 En1092 ISO5211
Industrial Usage, Water Industrial Usage, Household Usage
15-25 Days
Di/Nylon/1.4469/1.4529/Saf2205/2507/CF8/CF8m etc
NBR/EPDM/PTFE/Silicone etc
Customized
Pn6/10/16/25/21/150lb/JIS5K/10K/As2129 Table D/E/F
Carbon Steel, Stainless Steel, Aluminum Bronze
Zero Leakage
Wooden Case
customized
China
8481804090
Product Description
Metal seated butterfly valve is the newly-developed long-life and energy-saving products.
A metal seated butterfly valve is a type of valve which can be used for isolating or regulating flow. The closing mechanism is the disc, which sits in the center of the valve body. The disc is connected to a handle or actuator via the shaft, which passes from the disc through the top of the valve body. Unlike a ball valve, the disc of the butterfly valve is always present in the flow, which will induce a pressure drop.
• Triple offset geometry
• Integral metal seal ring sealing
• Zero Leakage for both way
• Anti-blow out shaft
• Fire safe design to API607
• Replaceable Seat & Disc Sealing
• 0°-90°control, no jump area
• Friction free
A metal seated butterfly valve operates in a quarter turn style, meaning that rotating the closed disc 90° will fully open the valve, and vice versa. They can also be opened incrementally in order to throttle flow.
A metal seated butterfly valve operates in a quarter turn style, meaning that rotating the closed disc 90° will fully open the valve, and vice versa. They can also be opened incrementally in order to throttle flow. This can be accomplished manually, but throttling flow is more precise when used in conjunction with an actuator. Actuators can be customized to allow incremental flow, by using positioners in the case of pneumatic and hydraulic actuators, or by using modulating boards in the case of electric actuators.
Applications of Metal Seat Butterfly Valves
Metal Seated Butterfly Valve is widely used in petroleum, natural gas, piped gas and medicine, food industry, industrial environmental water treatment and shipping industry.
Application standards
Valve Marking: MSS-SP-25
Design & Manufacture: API 609, EN 593
Face to Face Dimension: API 609, ISO 5752, EN 558
End Connection: ASME B16.5, ASME B16.47, EN 1092, JIS B2220, GOST 12820
Test and Inspection: API 598, EN 12266, ISO 5208
| No | Part | Material |
| 1 | Body | ASTM A351 CF8 |
| 2 | Seal Ring | Graphite + SS304 |
| 3 | Retainer Flange | ASTM A182 F304 |
| 4 | Pin | ASTM A276 304 |
| 5 | Disc | ASTM A351 CF8 |
| 6 | Stem | ASTM A276 304 |
| 7 | Stem Packing | Graphite |
| 8 | Stem Beating | SS304 + PTFE |
| 9 | Bolt | ASTM A193 B8 |
| 10 | Nut | ASTM A194 8 |
| 11 | Yoke | ASTM A216 WCB |
