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Butterfly valve series

  • Resilient Seated Butterfly Valve Wafer Type

    Resilient Seated Butterfly Valve Wafer Type

    Resilient seated butterfly valves,wafer type,lined with rubber sleeve.

    Centric shaft position,100% bi-directional bubble tightness

    Pinless disc design to prevent the leakage from the disc

    Compact design and simple structure

    Easy maintanance with replaceable parts

    Function as isolation valve and flow regulating valve.

    wide range of application and low cost.

    Wafer type between flanges of various standard

    NPS 1.5”-24”  Mounted between flanges ANSI B16.1,ASME B16.5

    Diameter 40mm – 600 mm between flanges EN1092 PN10,PN16,PN25

    Design standard: API 609, BS EN 593, MSS SP-67.

    Face-to-Face dimension: API 609, ISO 5752, BS EN 558, BS 5155, MS SP-67.

    Lever / worm gearbox operator / electric operator / pneumatic operator

    Working Pressure: PN10/16/25,Class125/150

    NORTECH is one of the leading China Resilient seated Butterfly Valve wafer type Manufacturer & Supplier.

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  • Double Flange Butterfly Valve

    Double Flange Butterfly Valve

    Double flange butterfly valve

    Design and Manufacture standard:API609/EN593

    Rubber seat vulcanized directly on the body.

    it could be used at the end of the pipeline.

    Face to face:ISO5752/EN558-1 series 13

    Flange end EN1092-2 PN10/PN16/PN25,ANSI 125/150

    DN 50mm-1200mm

    Body:Ductile iron/carbon steel/stainless steel/Alu-bronze

    Disc:Ductile iron/carbon steel/stainless steel/Alu-bronze

    Seat:EPDM/NBR/FKM/Silicone

    NORTECH is one of the leading China Double Flange Butterfly Valve Manufacturer & Supplier.

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  • Double Eccentric Butterfly Valve

    Double Eccentric Butterfly Valve

    Double eccentric butterfly valve high performance

    Design and Manufacture standard:API609

    Face to face:ANSI B 16.10

    Temperature and pressure ASME B 16.34

    Pressure rating ANSI 150/300/600

    DN50-DN1800(2″-72″)

    Body:Carbon steel/Stainless steel

    Disc:Stainless steel

    Seat:PTFE/RPTFE

    NORTECH is one of the leading China Double Eccentric Butterfly Valve Manufacturer & Supplier.

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  • Triple Eccentric Butterfly Valve

    Triple Eccentric Butterfly Valve

    Triple eccentric butterfly valve,high performance

    Design and Manufacture standard:API609

    Face to face:ANSI B 16.10

    Temperature and pressure ASME B 16.34

    Pressure rating ANSI 150/300/600/900

    DN50-DN1500(2″-60″)

    Materials:Carbon steel/Stainless steel/Monel/Hastelloy etc

    Seat:Multi-layer or metal-metal

    NORTECH is one of the leading China Triple Eccentric Butterfly Valve Manufacturer & Supplier.

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  • Double Eccentric Butterfly Valve rubber seated

    Double Eccentric Butterfly Valve rubber seated

    Design and Manufacture standard EN593/API609/AWWA C504
    Face to face:ANSI B 16.10/ ISO5752-13/EN558-1 series 13/14
    Flange end: ASME B16.5 / ASME B16.47 /AWWA C207/ EN1092-2
    Test: API598
    Pressure rating ANSI Class150/PN10/PN16/PN25
    DN350-DN2000(14″-80″)
    Body and disc:Ductile iron
    replaceable seat EPDM/NBR

    NORTECH is one of the leading China Double Eccentric Butterfly Valve AWWA Manufacturer & Supplier.

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  • U Type Butterfly Valve

    U Type Butterfly Valve

    Double flange U type butterfly valve

    Same construction as the wafer type butterfly valves,mounting between flanges.

    with integral flanges to facilitate the positioning and installation.

    Resilient rubber seat vulcanized on the body.

    Design and Manufacture standard:API609/EN593

    Face to face:ISO5752/EN558-1 series 20

    Flange end EN1092-2 PN10/PN16/PN25,ANSI 125/150

    Type U DN350-DN1200(14″-48″)

    Body:Ductile iron/carbon steel/stainless steel/Alu-bronze

    Disc:Ductile iron/carbon steel/stainless steel/Alu-bronze

    Seat:EPDM/NBR/FKM/Silicone

    NORTECH is one of the leading China U Type Butterfly Valve Manufacturer & Supplier.

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  • Resilient seated Butterfly Valve lug type

    Resilient seated Butterfly Valve lug type

    Resilent seated butterfly valves lug type,lined with rubber sleeve.

    Centric shaft position,100% bi-directional bubble tightness

    Pinless disc design to prevent the leakage from the disc

    Compact design and simple structure

    Easy maintanance with replaceable parts

    Function as isolation valve and flow regulating valve.

    wide range of application and low cost.

    Wafer type between flanges of various standard

    NPS 1.5”-24”  Mounted between flanges ANSI B16.1,ASME B16.5

    Diameter 40mm – 600 mm between flanges EN1092 PN10,PN16,PN25

    Design standard: API 609, BS EN 593, MSS SP-67.

    Face-to-Face dimension: API 609, ISO 5752, BS EN 558, BS 5155, MS SP-67.

    Lever / worm gearbox operator / electric operator / pneumatic operator

    Working Pressure: PN10/16/25,Class125/150

    NORTECH is one of the leading China Resilient seated Butterfly Valve lug type Manufacturer & Supplier.

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  • PTFE lined butterfly valve

    PTFE lined butterfly valve

    Design and Manufacture standard:API609/EN593

    Face to face:ISO5752/EN558-1 series 20

    Flange end EN1092-2 PN10/PN16,ANSI 125/150

    wafer/lug DN50-DN600(2″-24″)

    Body:Ductile iron/carbon steel/stainless steel

    Disc:carbon steel lined PTFE/stainless steel polished

    Seat:PTFE

    NORTECH is one of the leading China PTFE lined butterfly valve Manufacturer & Supplier.

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