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Hand Diaphragm Primer

Hand Diaphragm Primer Pump

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THE HAND DIAPHRAGM PRIMER PUMP(DP) is an air pump that creates vacuum suction in a centrifugal pump priming line and pulls water up into the pump to prime it. These centrifugal pump primers are popular for their portability and simplicity.

Protek Specialty Diaphragm Primer Models: DP5, DP7, and DP9

The DP primer has a flapper check valve in the diaphragm and a disk check valve at the bottom of the unit. Air flows through the bottom check valve on the diaphragm up stroke then through the diaphragm valve on the down stroke. Diaphragm is actuated through a connecting rod eyebolt attached to a fulcrum handle bracket.

The Protek Specialty DIAPHRAGM PRIMER PUMPS are centrifugal pump primers, ideal for  use in irrigation, firefighting, liquid extraction, and fluid distribution applications.

Compatible products : Centrifugal Pump, hand pump, skid.

Common names : hand pump primer, centrifugal pump primer, suction lift
primer, portable primer, centrifugal primer, centrifugal water pump primer, permanent primer.

FEATURES

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Lightweight, portable aluminum alloy body.

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Easily mounted on most centrifugal pumps.

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Tough and durable rubber diaphragm.

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Units have a drain valve.

 

 

 

 

  • INSTALLATION & OPERATION

    1. Attach mounting bracket to centrifugal pump or skid.
    2. Use non-collapsible hose or flexible tubing to connect primer suction inlet to pump.
    3. Install cut-off valve between the primer suction inlet and pump.
    4. Close cut-off valve immediately after priming.
    5. Make sure primer drain valve is closed.
    6. A cut-off valve should be used at the pump discharge to prevent air from being drawn through the discharge line while priming.
  • MAINTENANCE

    • Remove any debris under the diaphragm after each use.
    • Clear all fluids from inside the unit after each use.
  • TROUBLESHOOTING

    If DP is not priming the pump, check the following:

    1. Make sure drain cock is closed.
    2. Inspect check valve for blockage and free movement.
    3. Check suction side for air leaks.
    4. Connecting hoses should be straight and clear of debris.
    5. Call Protek Technical Support for additional help.
  • Hand Diaphragm Primer – Parts

    DP5 DP7 DP9 Description
    D0055 D0087 D0062 Lower Housing
    D0056 D0088 D0063 Upper Housing
    D0054 D0058 D0061  Diaphragm
    D0107 D0104 Mounting Bracket
    D0093 D0093 D0093 Handle Bracket
    D0303 Diaphragm Plate (2 Req’d)
    D0003 1-½” Locknut
    D0127-A D0127-A D0127-A Connecting Rod Assembly
    D0050 D0050 D0051 Fulcrum Eyebolt
    D0004 D0004 D0004 Check Valve
    D0340 D0340 D0340 Drain Valve
    D0347A D0347A D0347A Clevis Pin Assembly
    X0D01 X0D01 X0D01 Thumb Screw
    HANDLE W/ GRIP ASSEMBLY – #D0095
    PART # DESCRIPTION
    D0094 Grip
    D0094-5 Handle Pipe
    Handle W/ Bracket Assembly – #D0047
    PART # DESCRIPTION
    D0093 Handle Bracket (Includes 2 Fast Pins & Thumb Screw)
    D0095 Handle with Grip Assembly (See Above Chart)
    OLD STYLE PARTS (Available Upon Request)
    Old Style DP9
    PART # DESCRIPTION
    D0001 Fulcrum Bracket
    D0129 Fulcrum Link (2 Req’d)
    Old Style DP5 & DP7
    D0339 Ball Check Valve
    D0300 ¾” MPT x ½” FPT Valve Bushing
    REPAIR KITS D05RK , D07RK , D09RK
    PART# DESCRIPTION
    D0004 Check Valve (Disk)
    D0054, D0058, D0061 Diaphragm
    D0303 (DP5 only) Diaphragm Plate (2 req.)
    D0340 Drain Valve
    X0D04 ¼”-20 x 1″ Bolt (4 Req’d)
    X0D10 ³/8″ Flat Washer (2 req.)
    X0D11 Jam Nut (2 Req.)
    X0D12 ¼ Self Locking Nut (4 Req.)
    PRIMER SELECTION CHART
    PRIMER PIPE SIZE
    DP5 2”, 3”, 4”
    DP7 4”, 5”, 6”
    DP9 6”, 8”, or Larger
    PRIMER CAPACITY CHART
    # of Strokes to Prime Through 25’ of 4” Suction # of Strokes to Prime Through 25’ of 6” Suction # of Strokes to Prime Through 25’ of 8” Suction
    PRIMER 5” HG 10” HG 15” HG 5” HG 10” HG 15” HG 5” HG 10” HG 15” HG
    DP5 10 27 55
    DP7 6 15 32 12 33 65
    DP9 4 9 20 10 23 45 17 37 77
    * Hg = Inches of Mercury

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Area of Interest :

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BUSINESS HOURS :

M-F 8:00 AM – 5:00 PM

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SHIPPING/RECEIVING :

M-F 8:00 AM – 3:00 PM

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PHONE :

(713) 667-6691

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FAX :

(713) 667-7867

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BILLING ADDRESS :

P.O. Box 478, Bellaire, TX 77402

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SHIPPING ADDRESS :

5116 Elm St, Houston, TX 77081

INDUSTRIES & APPLICATIONS

Agricultural
irrigation

Fire
Fighting

Chemical
plants

Construction

Drilling,
excavations

Processing
plants

Pulp mills

Water treatment
plants

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