Hand Diaphragm Pump

The Hand Diaphragm Pump (HP) is a single-chamber air and liquid pump. The chamber has 2 opening flapper valves for suction and discharge. The diaphragm is actuated by the fulcrum handle bracket, air and/ or liquid is pulled into the chamber through the suction valve and expelled through the discharge valve. The Protek Hand Pump (HP) is portable, lightweight, and dependable.

download Hand Diaphragm Pump catalogue

FEATURES

Ideal for priming pumps or as portable pump.

Large inlets allow transfer of many types of liquids.

Upon request, unit can be provided with a wooden base to optimize stability for tough primes.

Easily delivers up to 30 GPM.

Maximum leverage design facilitates easier pumping.

INSTALLATION & OPERATION

Insert handle into fulcrum, making sure that fulcrum and handle holes align before inserting the fulcrum pin.
Place pump on a solid foundation that is as close as possible to the fluid that is going to be pumped. (This positioning should make the suction line as short and direct as possible.)
Attach suction pipes to the suction inlet and to the discharge outlet.
- Suction line must be sloped upward in order to provide continual feed into the pump.

SAFETY & RECOMMENDATIONS
To extend diaphragm and valve life, flush the pump with water after each use.

Replace the diaphragm and valves that show signs of wear, cracking or corrosion.

Troubleshooting

If you cannot get the HP to prime, try one of the following:

Make sure there is no debris left inside where the valves are. Any debris can cause clogging.
Inspect the diaphragm for any tears or cracks.
Check the line for any blockage or loops. The line must be straight and not twisted in any way.
Check all sections of the suction line for air leaks.
If the eyebolt assembly becomes loose from the diaphragm assembly:
1. Remove the bolts which connect the retainer ring and pump body so that the diaphragm assembly can be removed.
2. Remove the diaphragm assembly and tighten the jam nut located on the underside of the diaphragm assembly until the bottom jam nut is even with the bottom of the eyebolt.
3. Re-assemble the pump by reversing the dis-assembling process. *When re-assembling the pump, have the pump’s discharge side to your left, and make sure that the opening of the eyebolt is facing you.

Hand Diaphragm Pump – Parts

HP700 PARTS		HP900 PARTS		DESCRIPTION
H0701		H0901		Pump Body
H0703		H0903		Retainer Ring
H0704		H0904		Fulcrum
H0705		H0905		Suction Flange
H0706		H0906		Discharge Flange
H0707C		H0907C		Diaphragm
H0709		H0709		Diaphragm Plate (2 Req’d)
H0710		H0910		Discharge Valve
H0714		H0910		Suction Valve
H0902A		H0902A		Fulcrum Pin Assembly
H0912	(See Chart Below.)	H0912	(See Chart Below.)	Handle pipe w/ Grip Assembly
D0347A		D0347A		Fast Pin Assembly
X0019		X0019		Eyebolt Assembly
X0D01		X0D01		Thumbscrew

HANDLE ASSEMBLY – #H0912
PART#	DESCRIPTION
H0712	Grip
H0911	Handle Pipe

DIAPHRAGM ASSEMBLY – #H0707A & H0907A
PART#	DESCRIPTION
H0707C/H0907C	Diaphragm
H0709	Diaphragm Plate (2 Req.)
X0019	Eyebolt w/ Nuts

REPAIR KITS
HP7RK	HP9RK	DESCRIPTION
H0707C	H0907C	Diaphragm
H0709	H0709	Diaphragm Plate (2 Req.)
H0710	H0910 (2 Req.)	Discharge Valve (Also Suction Valve for HP900)
H0714	–	Suction Valve (HP700/HP7RK Only)
D0347A	D0347A	Clevis Pin Assembly
H0902A	H0902A	Fulcrum Pin Assembly
X0019	X0019	Eyebolt Assembly
X0D11	X0D11	3/8-16″ Jam Nut (2 Req.)
X0H21	X0H21	5/16-18″ x 2″ HH Bolt (4 Req.)
X0H31	X0H31	5/16-18″ x 1″ HH Bolt (8 Req.)
X0H41	X0H41	5/16-18″ Nut (4 Req.)

PRIMER CAPACITY CHART
MODEL#	INLET/ OUTLET	CAPACITY	MAXIMUM SUCTION LIFT	MAXIMUM DISCHARGE HEAD	APPROX. NET WEIGHT
HP700	1-½” NPT	½ gal./Stroke	20 ft.	10 ft	15 lbs.
HP900	2” NPT	1 gal./Stroke	15 ft.	10 ft.	18 lbs.