GEMÜ 491 Pneumatic metal butterfly valve

The GEMÜ 491 Edessa PTFE lined butterfly valve has a metal actuator and is pneumatically operated. The “Normally Closed”, “Normally Open” and “Double Acting” control functions are available. Disc and shaft are one piece, body and liner are available in different designs. The butterfly valve is available in nominal sizes DN 25 Up to 600 and in standard installation lengths ISO 5752/20 | EN 558-1/20 | API 609 category A (DIN 3202 K1) in wafer and lug body versions. The GEMÜ 491 Pneumatic Metal Butterfly Valve is a robust, high-performance valve designed for reliable shut-off and precise flow control in industrial piping systems. Featuring a durable metal body and pneumatically actuated operation, it ensures fast, accurate control with minimal torque. The 491 series offers excellent sealing, long service life, and is ideal for automated process applications in demanding industries such as chemical, petrochemical, and water treatment.

Key features
Suitable for chemically corrosive media
Bubble tight sealing, in accordance with EN 12266-1/P12, leak rate A
High-quality selection of materials can be combined in different ways
High level of plant reliability thanks to one-piece shaft and spring-washer-supported seal system
Long service life thanks to shaft bearings and special disc and liner geometry
Optional accessories are installed, set and tested so they are ready for operation

GEMÜ butterfly valves are widely used in water treatment systems in industries such as chemical and power plants. The standard configuration is a centerline butterfly valve, but double and triple eccentric butterfly valves are also available upon request. They can also be used with components such as position indicators, positioners, and process controllers to achieve various control functions.

GEMÜ Shut-off valves
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GEMÜ D480
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GEMÜ 490
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GEMÜ 498
GEMÜ 428
GEMÜ R478
GEMÜ D488
GEMÜ R488
GEMÜ 423
GEMÜ D458
GEMÜ R487
GEMÜ 497
GEMÜ D487
GEMÜ 411
GEMÜ R477
GEMÜ 417
GEMÜ D457
GEMÜ D481
GEMÜ R471
GEMÜ R481
GEMÜ 491
GEMÜ 415
GEMÜ D451
GEMÜ 410
GEMÜ 488
GEMÜ 487
GEMÜ Inga
GEMÜ TUGELA
GEMÜ Victoria
GEMÜ GAK

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Contact HKXYTECH today to learn more about the GEMÜ Shut-off valves and how it can support safe and efficient process control in your operations.