13 Years Manufacturer Rubber Seat Flange Butterfly Valve Libya Manufacturer

13 Years Manufacturer Rubber Seat Flange Butterfly Valve Libya Manufacturer

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Our development depends on the advanced equipment, excellent talents and continuously strengthened technology forces. 13 Years Manufacturer Rubber Seat Flange Butterfly Valve Libya Manufacturer, welcomes all overseas friends and merchants to establish collaboration with us. We will provide you with honest, high quality and efficient service to meet your requirements.


GMK Resilient Seated Butterfly Valves are widely used in various industries for both on-off and regulating service. Compare with traditional Globe & Ball valve, butterfly valve is less weight and cost-effective. Followed by the rapid development on various elastomer materials, resilient seated butterfly valve are now used not only for water system but also for various chemical industries. GMK resilient seated butterfly valves are designed in accordance with API609 with axes of body、stem and disc concentric.

Product Range

-Valve size:

2” ~ 60” (DN50-DN1500)

-Pressure:

ANSI Class 125~150(PN10-PN16)

-Temperature:

-35℃~ 200℃

-Body Materials:

Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel

-Disc Materials:

Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel, Al-Bronze

-Seat:

EPDM ,NBR,VITON

End connection: Wafer, Lug, Double Flange

Technical Specifications

-Design: API 609, BS 5155, EN593, DIN 3354

-Face to Face: ASME B16.34

-End Flange: ASME B16.5

-BW End: ASME B16.25

-Screwed End: ASME B1.20.1

-Test: ASME B16.34, API 598, DIN 3230

-Marking: MSS SP25

-Special: NACE MR-01-75

Design Features

-Concentric design

-Bi-directional service

-Zero leakage

-Low torque

-Self cleaning

-Blowout-proof stem

-ISO 5211 top flange

-Optional extended stem design

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