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    Industrial water treatment

    The availability of process water plays an important role in industry since virtually every production process requires water. Whether it is for cooling, cleaning or as a starting material for aqueous solutions – depending on the application, the unwanted substances must be removed from the raw water or the desired substances added.

     

    This task is performed by water treatment plants, thus ensuring a functioning circuit. The GEMU product range can provide reliable solutions for components for measurement and control systems for these plants.

     

    A huge variety of valve types and automation components

    Durable, robust and optimised for their specific use: GEMÜ produces and supplies butterfly valves, diaphragm valves, globe and control valves, ball valves, as well as components for plant and plant sections for industrial water treatment.

  • Products

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    312

    Pneumatically operated multi-port globe valve

    • Media temperature: -10 to 180 °C
    • Ambient temperature*: -10 to 60 °C
    • Operating pressure*: 0 to 16 bar
    • Nominal sizes*: DN 15 to 100
    • Body configurations: Multi-port body
    • Connection types: Flange
    • Connection standards: ANSI | DIN | EN | ISO
    • Body materials: 1.4408, investment casting material
    • Seat seal materials: PTFE | PTFE, reinforced
    • Conformities: EAC | Oxygen
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    410

    Pneumatically operated butterfly valve

    • Media temperature :0 to 60 °C
    • Ambient temperature:-10 to 60 °C
    • Operating pressure :0 to 6 bar
    • Nominal sizes:DN 15 to 50
    • Connection types:Union end
    • Connection standards:BS | DIN
    • Housing materials:PVC-U, grey
    • Liner materials:EPDM | FKM
    • Disc materials:PVDF
    • Conformities:EAC
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    411

    Manually operated butterfly valve

    • Suitable for vacuum applications and low temperatures
    • High-quality butterfly valve made from stainless steel or brass
    • Available in small nominal sizes
    • Compact and robust body
    • Ergonomically designed hand lever with integrated locking device
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    411

    Pneumatically operated butterfly valve

    • Media temperature :-20 to 120 °C
    • Ambient temperature:0 to 60 °C
    • Operating pressure :0 to 10 bar
    • Nominal sizes:DN 15 to 50
    • Connection types:Clamp | Spigot | Threaded connection
    • Connection standards:ASME | DIN | EN | ISO | SMS
    • Housing materials:1.4408, investment casting material | CW614N, brass | CW617N, brass
    • Liner materials:EPDM | FKM | Silicone
    • Disc materials:1.4408, investment casting material | CW614N, brass | CW617N, brass
    • Conformities:ATEX | EAC | FDA
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    417

    Manually operated butterfly valve

    • Media temperature :0 to 60 °C
    • Ambient temperature:-10 to 60 °C
    • Operating pressure :0 to 6 bar
    • Nominal sizes:DN 15 to 50
    • Connection types:Union end
    • Connection standards:BS | DIN
    • Housing materials:PVC-U, grey
    • Liner materials:EPDM | FKM
    • Disc materials:PVDF
    • Conformities:EAC
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    423

    Motorized butterfly valve

    • Media temperature :0 to 60 °C
    • Ambient temperature:-10 to 60 °C
    • Operating pressure :0 to 6 bar
    • Nominal sizes:DN 15 to 50
    • Connection types:Union end
    • Connection standards:BS | DIN
    • Housing materials:PVC-U, grey
    • Liner materials:EPDM | FKM
    • Disc materials:PVDF
    • Supply voltage:12 - 24 V AC/DC | 12 V DC | 24 - 240 V AC/DC | 24 V AC, 50/60 Hz | 24 V DC
    • Operating time 90°:4 to 100 s
    • Protection class:IP 65, 66, 67, 68
    • Conformities:CSA | EAC
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    428

    Motorized butterfly valve

    • Media temperature :0 to 60 °C
    • Ambient temperature:-10 to 60 °C
    • Operating pressure :0 to 6 bar
    • Nominal sizes:DN 15 to 50
    • Connection types:Union end
    • Connection standards:BS | DIN
    • Housing materials:PVC-U, grey
    • Liner materials:EPDM | FKM
    • Disc materials:PVDF
    • Supply voltage:12 - 24 V AC/DC | 12 V DC | 24 - 240 V AC/DC | 24 V AC, 50/60 Hz | 24 V DC
    • Operating time 90°:4 to 100 s
    • Protection class:IP 65, 66, 67, 68
    • Conformities:CSA | EAC
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    481

    Pneumatically operated butterfly valve

    • Media temperature :0 to 60 °C
    • Ambient temperature:-10 to 60 °C
    • Operating pressure :0 to 6 bar
    • Nominal sizes:DN 15 to 50
    • Connection types:Union end
    • Connection standards:BS | DIN
    • Housing materials:PVC-U, grey
    • Liner materials:EPDM | FKM
    • Disc materials:PVDF
    • Supply voltage:12 - 24 V AC/DC | 12 V DC | 24 - 240 V AC/DC | 24 V AC, 50/60 Hz | 24 V DC
    • Operating time 90°:4 to 100 s
    • Protection class:IP 65, 66, 67, 68
    • Conformities:CSA | EAC
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    487

    Manually operated butterfly valve

    • Media temperature:-10 to 150 °C
    • Ambient temperature:-10 to 70 °C
    • Operating pressure :0 to 16 bar
    • Nominal sizes:DN 25 to 600
    • Body configurations:Lug | U section | Wafer
    • Connection standards:AS | ASME | BS | DIN | EN | ISO | JIS
    • Body materials:EN-GJS-400-15, SG iron material
    • Body coating:Epoxy
    • Liner materials:EPDM | FKM | NBR | SBR, abrasion resistant
    • Disc materials:1.4408, investment casting material | 1.4408, polished investment casting material | EN-GJS-400-15, SG iron material
    • Disc coating:EPDM | Epoxy | Halar® | Rilsan®
    • Conformities:ACS | ATEX | Belgaqua | DNV GL | DVGW Drinking water | DVGW Gas | EAC | FDA | WRAS
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    488

    Motorized butterfly valve

    • Media temperature :-10 to 150 °C
    • Ambient temperature:-10 to 70 °C
    • Operating pressure :0 to 16 bar
    • Nominal sizes:DN 25 to 600
    • Body configurations:Lug | U section | Wafer
    • Connection standards:AS | ASME | BS | DIN | EN | ISO | JIS
    • Body materials:EN-GJS-400-15, SG iron material
    • Body coating:Epoxy
    • Liner materials:EPDM | FKM | NBR | SBR, abrasion resistant
    • Disc materials:1.4408, investment casting material | 1.4408, polished investment casting material | EN-GJS-400-15, SG iron material
    • Disc coating:EPDM | Epoxy | Halar® | Rilsan®
    • Supply voltage:100 - 120 V AC, 50/60 Hz | 12 - 24 V AC/DC | 220 - 240 V AC, 50/60 Hz | 380 - 480 V AC, 50/60 Hz
    • Operating time 90°:4 to 100 s
    • Protection class:IP 65, 66, 67, 68
    • Conformities:ACS | ATEX | Belgaqua | CSA | DNV GL | DVGW Drinking water | DVGW Gas | EAC | FDA | WRAS
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    530

    Pneumatically operated globe valve

    • Media temperature :-10 to 180 °C
    • Ambient temperature:-10 to 60 °C
    • Operating pressure :0 to 40 bar
    • Nominal sizes:DN 15 to 100
    • Body configurations:2/2-way body
    • Connection types:Flange
    • Connection standards:ANSI | ASME | EN | ISO | JIS
    • Body materials:1.4408, investment casting material | EN-GJS-400-18-LT, SG iron material
    • Seat seal materials:PTFE | PTFE, reinforced
    • Conformities:ATEX | CRN | EAC | FDA | Functional safety | Oxygen | Reg. (EU) No. 10/2011 | Regulation (EC) No. 1935/2004 | TA Luft (German Clean Air Act)
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    532

    Pneumatically operated globe valve

    • Media temperature :-10 to 180 °C
    • Ambient temperature:-10 to 60 °C
    • Operating pressure :0 to 40 bar
    • Nominal sizes:DN 15 to 100
    • Body configurations:2/2-way body
    • Connection types:Flange
    • Connection standards:ANSI | ASME | EN | ISO | JIS
    • Body materials:1.4408, investment casting material | EN-GJS-400-18-LT, SG iron material
    • Seat seal materials:1.4404 | PTFE | PTFE, reinforced
    • Conformities:CRN | EAC | FDA | Functional safety | Oxygen | Reg. (EU) No. 10/2011 | Regulation (EC) No. 1935/2004 | TA Luft (German Clean Air Act)
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    536

    Pneumatically operated globe valve

    • Media temperature: -10 to 180 °C
    • Ambient temperature*: -10 to 60 °C
    • Operating pressure*: 0 to 40 bar
    • Nominal sizes*: DN 32 to 150
    • Body configurations: 2/2-way body
    • Connection types: Flange
    • Connection standards: ANSI | EN | ISO
    • Body materials: 1.4408, investment casting material | EN-GJS-400-18-LT, SG iron material
    • Seat seal materials: PTFE | PTFE, reinforced
    • Conformities: ATEX | CRN | EAC
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    620

    Pneumatically operated diaphragm valve

    • Media temperature :0 to 100 °C
    • Ambient temperature:0 to 60 °C
    • Operating pressure :0 to 10 bar
    • Nominal sizes:DN 15 to 150
    • Body configurations:2/2-way body
    • Connection types:Flange | Threaded connection
    • Connection standards:ANSI | BS | EN | ISO
    • Body materials:EN-GJL-250, cast iron material | EN-GJS-400-18-LT (GGG 40.3), PFA lined | EN-GJS-400-18-LT (GGG 40.3), PP lined | EN-GJS-400-18-LT, hard rubber lined | EN-GJS-400-18-LT, SG iron material | EN-GJS-500-7, ductile iron material, PFA lined | EN-GJS-500-7, ductile iron material, PP lined
    • Body lining:Hard rubber | PFA | PP
    • Diaphragm materials:CR | EPDM | FKM | NBR | PTFE/EPDM | PTFE/FKM | PTFE/PVDF/EPDM
    • Conformities:CRN | EAC | FDA | TA Luft (German Clean Air Act)
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    638

    2/2-way diaphragm valve

    • Media temperature :-10 to 180 °C
    • Ambient temperature:-10 to 60 °C
    • Operating pressure :0 to 40 bar
    • Nominal sizes:DN 15 to 100
    • Body configurations:2/2-way body
    • Connection types:Flange
    • Connection standards:ANSI | ASME | EN | ISO | JIS
    • Body materials:1.4408, investment casting material | EN-GJS-400-18-LT, SG iron material
    • Seat seal materials:1.4404 | PTFE | PTFE, reinforced
    • Conformities:CRN | EAC | FDA | Functional safety | Oxygen | Reg. (EU) No. 10/2011 | Regulation (EC) No. 1935/2004 | TA Luft (German Clean Air Act)
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    655

    Manually operated full bore diaphragm valve

    • Media temperature :0 to 100 °C
    • Ambient temperature:0 to 60 °C
    • Operating pressure :0 to 7 bar
    • Nominal sizes:DN 25 to 300
    • Body configurations:2/2-way body
    • Connection types:Flange
    • Connection standards:ANSI | EN | ISO
    • Body materials:EN-GJL-250, cast iron material | EN-GJS-400-18-LT, SG iron material | EN-GJS-500-7, ductile iron material
    • Body lining:Butyl | Hard rubber | Soft rubber
    • Diaphragm materials:CR | EPDM | IIR | NBR | NR
    • Conformities:CRN | EAC
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    656

    Pneumatically operated full bore diaphragm valve

    • Media temperature :0 to 100 °C
    • Ambient temperature:0 to 60 °C
    • Operating pressure :0 to 7 bar
    • Nominal sizes:DN 25 to 250
    • Body configurations:2/2-way body
    • Connection types:Flange
    • Connection standards:ANSI | EN | ISO
    • Body materials:EN-GJL-250, cast iron material | EN-GJS-400-18-LT | EN-GJS-400-18-LT, SG iron material | EN-GJS-500-7, ductile iron material
    • Body lining:Butyl | Hard rubber | Soft rubber
    • Diaphragm materials:CR | EPDM | IIR | NBR | NR
    • Conformities:CRN | EAC
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    675

    Manually operated diaphragm valve

    • Media temperature :-10 to 100 °C
    • Ambient temperature:0 to 60 °C
    • Operating pressure :0 to 10 bar
    • Nominal sizes:DN 15 to 150
    • Body configurations:2/2-way body
    • Connection types:Flange | Threaded connection
    • Connection standards:ANSI | BS | DIN | EN
    • Body materials:EN-GJL-250, cast iron material | EN-GJS-400-18-LT, SG iron material | EN-GJS-400-18-LT, SG iron material with hard rubber lining | EN-GJS-400-18-LT, SG iron material, PFA lined | EN-GJS-400-18-LT, SG iron material, PP lined | EN-GJS-500-7, ductile iron material, PFA lined | EN-GJS-500-7, ductile iron material, PP lined
    • Body lining:Hard rubber | PFA | PP
    • Diaphragm materials:CR | EPDM | FKM | NBR | PTFE/EPDM | PTFE/FKM | PTFE/PVDF/EPDM
    • Conformities:CRN | EAC | FDA | Reg. (EU) No. 10/2011 | Regulation (EC) No. 1935/2004 | TA Luft (German Clean Air Act)
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    710

    Pneumatically operated ball valve

    • Media temperature:-20 to 100 °C
    • Ambient temperature:-10 to 50 °C
    • Operating pressure :0 to 16 bar
    • Nominal sizes:DN 10 to 100
    • Body configurations:2/2-way body | Multi-port body
    • Ball configurations:Control ball | L-port | T-port
    • Connection types:Flange | Solvent cement socket | Spigot | Threaded connection | Union end
    • Connection standards:ASTM | BS | DIN | EN | ISO | JIS
    • Body materials:ABS | PP-H, grey | PVC-C, chlorinated | PVC-U, grey | PVDF
    • Seal materials:EPDM | FKM
    • Conformities:EAC
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    717

    Manually operated ball valve

    • Media temperature:-20 to 100 °C
    • Ambient temperature:-10 to 50 °C
    • Operating pressure :0 to 16 bar
    • Nominal sizes:DN 10 to 100
    • Body configurations:2/2-way body | Multi-port body
    • Ball configurations:Control ball | L-port | T-port
    • Connection types:Flange | Solvent cement socket | Spigot | Threaded connection | Union end
    • Connection standards:ANSI | BS | DIN | EN | ISO | JIS | NPT
    • Body materials:ABS | PP-H, grey | PVC-C, chlorinated | PVC-U, grey | PVDF
    • Seal materials:EPDM | FKM
    • Conformities:EAC
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    723

    Motorized ball valve

    • Media temperature:-20 to 100 °C
    • Ambient temperature:-10 to 50 °C
    • Operating pressure :0 to 16 bar
    • Nominal sizes:DN 10 to 100
    • Body configurations:2/2-way body | Multi-port body
    • Ball configurations:Control ball | L-port | T-port
    • Connection types:Flange | Solvent cement socket | Spigot | Threaded connection | Union end
    • Connection standards:ANSI | BS | DIN | EN | ISO | JIS
    • Body materials:ABS | PP-H, grey | PVC-C, chlorinated | PVC-U, grey | PVDF
    • Seal materials:EPDM | FKM
    • Supply voltage:12 V AC, 50/60 Hz | 12 V DC | 24 - 240 V AC/DC | 24 V AC, 50/60 Hz | 24 V DC
    • Operating time 90°:4 to 30 s
    • Protection class:IP 65, IP 67
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    B22

    Manually operated 2/2-way ball valve

    • Media temperature:-20 to 180 °C
    • Ambient temperature:-20 to 60 °C
    • Operating pressure :0 to 63 bar
    • Nominal sizes:DN 8 to 100
    • Body configurations:2/2-way body
    • Ball configurations:Control ball
    • Connection types:Flange | Spigot | Threaded connection
    • Connection standards:ASME | DIN | EN | ISO | NPT
    • Body materials:1.4408, investment casting material
    • Seal materials:PTFE
    • Conformities:ASME GEMÜ B31.3 | ATEX | EAC | FDA | Oxygen | Reg. (EU) No. 10/2011 | Regulation (EC) No. 1935/2004 | Regulation (EC) No. 2023/2006 | TA Luft (German Clean Air Act)
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    B52

    Motorized ball valve

    • Media temperature:-20 to 180 °C
    • Ambient temperature:-20 to 60 °C
    • Operating pressure :0 to 63 bar
    • Nominal sizes:DN 8 to 100
    • Body configurations:2/2-way body
    • Ball configurations:Control ball
    • Connection types:Flange | Spigot | Threaded connection
    • Connection standards:ASME | DIN | EN | ISO | NPT
    • Body materials:1.4408, investment casting material
    • Seal materials:PTFE
    • Conformities:ASME GEMÜ B31.3 | ATEX | EAC | FDA | Oxygen | Reg. (EU) No. 10/2011 | Regulation (EC) No. 1935/2004 | Regulation (EC) No. 2023/2006 | TA Luft (German Clean Air Act)
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    BOFS

    Floating ball valve

    • Valve type: floating ball valve
    • Body material: WCB, 304, 304L, 316, 316L
    • Working pressure: 0-50 bar
    • Maximum working temperature ℃: 600 ° C
    • Diameter range DN: 15-200
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    D451

    Pneumatically operated butterfly valve

    • Media temperature :5 to 90 °C
    • Ambient temperature:-20 to 60 °C
    • Operating pressure :0 to 10 bar
    • Nominal sizes:DN 50 to 300
    • Body configurations:Wafer
    • Connection standards:ANSI | EN | JIS
    • Body materials:PP, reinforced
    • Liner materials:EPDM | FKM
    • Disc materials:PP-H | PVC-C | PVC-U
    • Conformities:EAC
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    D457

    Manually operated butterfly valve

    • Media temperature :5 to 90 °C
    • Ambient temperature:-20 to 60 °C
    • Operating pressure :0 to 10 bar
    • Nominal sizes:DN 50 to 300
    • Body configurations:Wafer
    • Connection standards:ANSI | EN | JIS
    • Body materials:PP, reinforced
    • Liner materials:EPDM | FKM
    • Disc materials:PP-H | PVC-C | PVC-U
    • Conformities:EAC
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    Inga

    Triple Eccentric Butterfly Valve

    • Valve type: triple eccentric butterfly valve
    • Body material: WCB,304,304L,316,316L
    • Working pressure: 0-100 bar
    • Maximum working temperature ℃: 425 ° C
    • Diameter range DN: 50-600
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    R677

    Manually operated diaphragm valve

    • Media temperature :-10 to 80 °C
    • Ambient temperature:-10 to 50 °C
    • Operating pressure :0 to 10 bar
    • Nominal sizes:DN 15 to 100
    • Body configurations:2/2-way body
    • Connection types:Flange | Spigot | Union end
    • Connection standards:ANSI | ASTM | BS | DIN | EN | ISO | JIS
    • Body materials:ABS | Inliner PP-H, grey / outliner PP, reinforced | Inliner PVDF/outliner PP, reinforced | PP, reinforced | PVC-U, grey | PVDF
    • Diaphragm materials:EPDM | FKM | NBR | PTFE/EPDM
    • Conformities:EAC | FDA | NSF
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    R690

    Pneumatically operated diaphragm valve

    • Media temperature :-10 to 80 °C
    • Ambient temperature:-10 to 50 °C
    • Operating pressure :0 to 10 bar
    • Nominal sizes:DN 15 to 100
    • Body configurations:2/2-way body
    • Connection types:Flange | Spigot | Union end
    • Connection standards:ANSI | ASTM | BS | DIN | EN | ISO | JIS
    • Body materials:ABS | Inliner PP-H, grey / outliner PP, reinforced | Inliner PVDF/outliner PP, reinforced | PP, reinforced | PVC-U, grey | PVDF
    • Diaphragm materials:EPDM | FKM | NBR | PTFE/EPDM
    • Conformities:EAC | FDA | NSF
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    TUGELA

    Double eccentric butterfly valve

    •  Valve type: double eccentric butterfly valve
    • Body material: WCB,304,316,316L
    • Working pressure: 0-50 bar
    • Maximum working temperature ℃: 230 ° C
    • Diameter range DN: 50-600
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