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The Hand Diaphragm PrimerPump (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.

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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

Lightweight, portable aluminum alloy body.

Easily mounted on most centrifugal pumps.

Tough and durable rubber diaphragm.

Units have a drain valve.

• INSTALLATION & OPERATION

  Attach mounting bracket to centrifugal pump or skid. Use non-collapsible hose or flexible tubing to connect primer suction inlet to pump. Install cut-off valve between the primer suction inlet and pump. Close cut-off valve immediately after priming. Make sure primer drain valve is closed. 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: Make sure drain cock is closed. Inspect check valve for blockage and free movement. Check suction side for air leaks. Connecting hoses should be straight and clear of debris. 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
  	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	¼-20 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

• Primers

  Exhaust Primer

  Power Primer

• Pumps

  Motorized Diaphragm Pump

• Oilfield

  Oil Centrifuge Machine

Please fill in the from Below

BUSINESS HOURS :

M-Th 8:00 AM – 5:00 PM

SHIPPING/RECEIVING :

M-F 8:00 AM – 3:00 PM

PHONE :

(713) 667-6691

FAX :

(713) 667-7867

BILLING ADDRESS :

P.O. Box 965, Stafford, TX 77497

SHIPPING ADDRESS :

10315 Brighton Lane, Houston, TX 77031

Please fill out the form below and we will be in touch very soon. If you are in need of immediate
assistance please call us and one of our representatives will be able to help you.

PROTEK P-3502C USER SM

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