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DEMA Engineering

DEMA pioneered dilution control systems by introducing the first slide-bar faucet proportioner in 1956.  They now provide one of the largest ranges of chemical dosing and fluid control products in the global market. 

DEMA offers a full line of proven quality built fluid control devices, components, and systems to handle different fluid types, pressures, and applications. Their expertise in machining and casting fluid control devices is the backbone of their business and has built their reputation in manufacturing and process engineering markets.

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  • DEMA Inlet Barb, 1/4" w/ O-Ring

    DEMA
    UWS Part #: DE-63.79
    MSRP: $2.54
    MSRP: $2.54 - MSRP: $2.54
    MSRP: $2.54
    UWS Price: $2.54

    DEMA right-angle inlet barb for dispenser and proportioners.  1/4" NPT fitting with o-ring.

    MSRP: $2.54
    MSRP: $2.54 - MSRP: $2.54
    MSRP: $2.54
    UWS Price: $2.54
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    DEMA Inline Diaphragm Check Valve, Viton, 1/4" x 1/4"

    DEMA
    UWS Part #: DE-60.54
    MSRP: $4.23
    MSRP: $4.23 - MSRP: $4.23
    MSRP: $4.23
    UWS Price: $3.60

    This inline check valve features a viton diaphragm for chemical resistance and inserts between two pieces of 1/4" ID tubing.  Ideal for use in long...

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    MSRP: $4.23
    MSRP: $4.23 - MSRP: $4.23
    MSRP: $4.23
    UWS Price: $3.60
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    DEMA Mixrite Proportioner, 0.4 - 4.0% (25:1 - 250:1), 11 GPM, Aflas Seals, Hastelloy Springs

    DEMA
    UWS Part #: DE-572CW
    MSRP: $486.02
    MSRP: $486.02 - MSRP: $486.02
    MSRP: $486.02
    UWS Price: $413.12

    MSRP: $486.02
    MSRP: $486.02 - MSRP: $486.02
    MSRP: $486.02
    UWS Price: $413.12
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    DEMA Brass Manifold Valve, 5 Station, Non-Metering, NC, 1/4" NPT, 120 VAC DIN Coil

    DEMA
    UWS Part #: DE-492M5.8.6D
    MSRP: $272.77
    MSRP: $272.77 - MSRP: $272.77
    MSRP: $272.77
    UWS Price: $259.13

    The 492M is a mini diaphragm manifold valve featuring 1/4” inlets and outlets in a brass body.  This model is configured as follows: 5 station man...

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    MSRP: $272.77
    MSRP: $272.77 - MSRP: $272.77
    MSRP: $272.77
    UWS Price: $259.13
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    DEMA Brass High Pressure Solenoid Valve, SS Piston and Sleeve, Normally Closed, 3/8" 1200 PSI PTFE 24VDC Coil

    DEMA
    UWS Part #: DE-453S.4
    MSRP: $140.48
    MSRP: $140.48 - MSRP: $140.48
    MSRP: $140.48
    UWS Price: $119.41

    DEMA Brass Pilot-Piston solenoid valve for high-pressure applications. FEATURES: 24 VDC Coil 3/8" NPT Inlet and Outlet 1200 PSI Max Brass Body Sta...

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    MSRP: $140.48
    MSRP: $140.48 - MSRP: $140.48
    MSRP: $140.48
    UWS Price: $119.41
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    DEMA Brass High Pressure Solenoid Valve, SS Piston, Normally Closed, 3/8" 1200 PSI PTFE 120VAC Coil

    DEMA
    UWS Part #: DE-453P.6
    MSRP: $122.47
    MSRP: $122.47 - MSRP: $122.47
    MSRP: $122.47
    UWS Price: $104.10

    DEMA Brass Pilot-Piston solenoid valve for high-pressure applications. FEATURES: 120 VAC Coil 3/8" NPT Inlet and Outlet 1200 PSI Max Brass Body St...

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    MSRP: $122.47
    MSRP: $122.47 - MSRP: $122.47
    MSRP: $122.47
    UWS Price: $104.10
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    DEMA Brass Diaphragm Solenoid Valve, Normally Closed, 3/8" 125 PSI EPDM 120VAC Coil

    DEMA
    UWS Part #: DE-443P.6
    MSRP: $48.45
    MSRP: $48.45 - MSRP: $48.45
    MSRP: $48.45
    UWS Price: $41.18

    DEMA Brass diaphragm solenoid valve for low-pressure applications. FEATURES: 120 VAC Coil 3/8" NPT Inlet and Outlet 125 PSI Max Brass Body EPDM S...

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    MSRP: $48.45
    MSRP: $48.45 - MSRP: $48.45
    MSRP: $48.45
    UWS Price: $41.18
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  • DEMA DIN-Q-Coil 24VDC

    DEMA
    UWS Part #: DE-41.9D.5.4
    MSRP: $20.91
    MSRP: $20.91 - MSRP: $20.91
    MSRP: $20.91
    UWS Price: $20.91

    Replacement DEMA Solenoid Valve Coil, 24 VDC.

    MSRP: $20.91
    MSRP: $20.91 - MSRP: $20.91
    MSRP: $20.91
    UWS Price: $20.91
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  • DEMA DIN-Q-Coil 24VAC/60 Hz

    DEMA
    UWS Part #: DE-41.9D.5.3
    MSRP: $17.92
    MSRP: $17.92 - MSRP: $17.92
    MSRP: $17.92
    UWS Price: $17.92

    Replacement DEMA Solenoid Valve Coil, 24 VAC.

    MSRP: $17.92
    MSRP: $17.92 - MSRP: $17.92
    MSRP: $17.92
    UWS Price: $17.92
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  • DEMA Spade Coil Assembly 24VDC

    DEMA
    UWS Part #: DE-41.9.5.4
    MSRP: $14.30
    MSRP: $14.30 - MSRP: $14.30
    MSRP: $14.30
    UWS Price: $14.30

    Replacement DEMA Solenoid Valve Coil, 24 VDC.

    MSRP: $14.30
    MSRP: $14.30 - MSRP: $14.30
    MSRP: $14.30
    UWS Price: $14.30
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  • DEMA Spade Coil Assembly 24VAC/60 Hz

    DEMA
    UWS Part #: DE-41.9.5.3
    MSRP: $10.00
    MSRP: $10.00 - MSRP: $10.00
    MSRP: $10.00
    UWS Price: $10.00

    Replacement DEMA Solenoid Valve Coil, 24 VAC.

    MSRP: $10.00
    MSRP: $10.00 - MSRP: $10.00
    MSRP: $10.00
    UWS Price: $10.00
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  • DEMA Junction Box Coil Assembly 24VAC/50-60 Hz

    DEMA
    UWS Part #: DE-41.9.2.3
    MSRP: $27.26
    MSRP: $27.26 - MSRP: $27.26
    MSRP: $27.26
    UWS Price: $27.26

    Replacement DEMA Solenoid Valve Coil, 24 VAC.

    MSRP: $27.26
    MSRP: $27.26 - MSRP: $27.26
    MSRP: $27.26
    UWS Price: $27.26
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  • DEMA DIN Connector And Power Cord Assembly 24"

    DEMA
    UWS Part #: DE-41.77.100110.24.US
    MSRP: $12.09
    MSRP: $12.09 - MSRP: $12.09
    MSRP: $12.09
    UWS Price: $12.09

    MSRP: $12.09
    MSRP: $12.09 - MSRP: $12.09
    MSRP: $12.09
    UWS Price: $12.09
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  • DEMA Solenoid Valve Repair Kit - 458PS

    DEMA
    UWS Part #: DE-41.33.2
    MSRP: $81.89
    MSRP: $81.89 - MSRP: $81.89
    MSRP: $81.89
    UWS Price: $81.89

    This kit contains the parts to repair and overhaul DEMA Solenoid Valves 458PS.

    MSRP: $81.89
    MSRP: $81.89 - MSRP: $81.89
    MSRP: $81.89
    UWS Price: $81.89
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  • DEMA Solenoid Valve Repair Kit - 458P

    DEMA
    UWS Part #: DE-41.33
    MSRP: $76.47
    MSRP: $76.47 - MSRP: $76.47
    MSRP: $76.47
    UWS Price: $76.47

    This kit contains the parts to repair and overhaul DEMA Solenoid Valves 458P.

    MSRP: $76.47
    MSRP: $76.47 - MSRP: $76.47
    MSRP: $76.47
    UWS Price: $76.47
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  • DEMA Solenoid Valve Repair Kit - 453P & 453S

    DEMA
    UWS Part #: DE-41.31
    MSRP: $50.66
    MSRP: $50.66 - MSRP: $50.66
    MSRP: $50.66
    UWS Price: $50.66

    This kit contains the parts to repair and overhaul DEMA Solenoid Valves 453P and 453S.

    MSRP: $50.66
    MSRP: $50.66 - MSRP: $50.66
    MSRP: $50.66
    UWS Price: $50.66
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  • DEMA Solenoid Valve Repair Kit - A414P

    DEMA
    UWS Part #: DE-41.28
    MSRP: $17.05
    MSRP: $17.05 - MSRP: $17.05
    MSRP: $17.05
    UWS Price: $17.05

    This kit contains the parts to repair and overhaul DEMA Solenoid Valves A414P.

    MSRP: $17.05
    MSRP: $17.05 - MSRP: $17.05
    MSRP: $17.05
    UWS Price: $17.05
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    DEMA Solenoid Valve Plunger Kit - Buna 401P & 424.2

    DEMA
    UWS Part #: DE-41.24
    MSRP: $8.89
    MSRP: $8.89 - MSRP: $8.89
    MSRP: $8.89
    UWS Price: $7.56

    This kit contains the parts to replace the valve plunger, plunger spring, valve seat, and o-ring for DEMA Solenoid Valves 401P and 424.2.  Contains...

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    MSRP: $8.89
    MSRP: $8.89 - MSRP: $8.89
    MSRP: $8.89
    UWS Price: $7.56
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  • DEMA Mixrite 500 Series Spring Kit

    DEMA
    UWS Part #: DE-36000000191
    MSRP: $19.54
    MSRP: $19.54 - MSRP: $19.54
    MSRP: $19.54
    UWS Price: $19.54

    DEMA Mixrite 500 Series Spring Kit

    MSRP: $19.54
    MSRP: $19.54 - MSRP: $19.54
    MSRP: $19.54
    UWS Price: $19.54
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  • DEMA 221 Series .161 Dual Barb Rocket Injector Repair Kit

    DEMA
    UWS Part #: DE-22.161
    MSRP: $35.71
    MSRP: $35.71 - MSRP: $35.71
    MSRP: $35.71
    UWS Price: $35.71

    DEMA Rocket Injector repair kits include the barbs, check valves, seals, screws, and orifice required to rebuild the corresponding Rocket injector.

    MSRP: $35.71
    MSRP: $35.71 - MSRP: $35.71
    MSRP: $35.71
    UWS Price: $35.71
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    DEMA Rocket Single Barb (.086 Nozzle) Injector Assy. Blue, 2.6 GPM

    DEMA
    UWS Part #: DE-211.086
    MSRP: $68.09
    MSRP: $68.09 - MSRP: $68.09
    MSRP: $68.09
    UWS Price: $57.88

    Single Barb Rocket Injector, 3/8" NPT Standard Connect, 2.6 GPM, 0.086" Diameter Orifice The Rocket injector was designed to be the most versatile ...

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    MSRP: $68.09
    MSRP: $68.09 - MSRP: $68.09
    MSRP: $68.09
    UWS Price: $57.88
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    DEMA Rocket Single Barb (.070 Nozzle) Injector Assy. Orange, 1.7 GPM

    DEMA
    UWS Part #: DE-211.070
    MSRP: $68.09
    MSRP: $68.09 - MSRP: $68.09
    MSRP: $68.09
    UWS Price: $57.88

    Single Barb Rocket Injector, 3/8" NPT Standard Connect, 1.7 GPM, 0.070" Diameter Orifice The Rocket injector was designed to be the most versatile ...

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    MSRP: $68.09
    MSRP: $68.09 - MSRP: $68.09
    MSRP: $68.09
    UWS Price: $57.88
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  • DEMA Rocket Low Flow Single Barb (.029 Nozzle) Injector Assy. White, 0.30 GPM

    DEMA
    UWS Part #: DE-211.029
    MSRP: $68.09
    MSRP: $68.09 - MSRP: $68.09
    MSRP: $68.09
    UWS Price: $68.09

    Single Barb Rocket Low Flow Injector, 3/8" NPT Standard Connect, 0.30 GPM, 0.029" Diameter Orifice The Rocket injector was designed to be the most ...

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    MSRP: $68.09
    MSRP: $68.09 - MSRP: $68.09
    MSRP: $68.09
    UWS Price: $68.09
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  • DEMA 211 Series Single Barb Injector Check Valve Repair Kit

    DEMA
    UWS Part #: DE-21.001
    MSRP: $4.38
    MSRP: $4.38 - MSRP: $4.38
    MSRP: $4.38
    UWS Price: $4.38

    DEMA Rocket Injector check valve kits include only the ball, spring, and o-rings necessary to replace the check valve portion of a Rocket injector.

    MSRP: $4.38
    MSRP: $4.38 - MSRP: $4.38
    MSRP: $4.38
    UWS Price: $4.38
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