The GPI HP-100 DUAL-FLO
®
Petroleum Hand Pump is de-
signed to manually pump petroleum products compatible
with aluminum and Buna-N. The user has the flexibility of
operating the pump at two flow rates. A setting of 1/2-gallon
provides faster high-capacity flow. A 1/4-gallon setting al-
lows for easier pumping of fluids. The HP-100 Hand Pump is
designed for use on a tank with a 2-inch bung.
Read Me!
Observe standard precautions when handling fuel.
• Keep fuel away from open flame or spark.
• Do not refuel vehicles or equipment with engines running
or while equipment engine is hot.
• Do not smoke while refueling.
Use the HP-100 Hand Pump only with petroleum products
such as diesel fuel, kerosene, and gasoline. This equipment
should not be used to pump chemicals.
Damage Inspection
Upon receipt of your pump system, carefully inspect visible
components for any damage that may have occurred during
shipping. Note that the pump includes a suction pipe, dis-
charge hose, and nozzle. If any parts are damaged or
missing, please contact your distributor.
GENERAL INFORMATION
HP-100 Dual-Flo
®
Petroleum Hand Pump
Owner’s Manual
Use the following procedures to install the HP-100 Hand
Pump on a tank with a 2-inch bung.
Install Suction Pipe
1. Remove the two protective plugs from the pump inlet and
outlet ports.
2. Wrap the threaded end of the suction pipe with 3 to 4 turns
of Teflon
®
tape.
3. Insert the suction screen into the inlet cover.
4. Place the spacer in the inlet cover to secure the inlet screen.
5. Install the suction pipe into the inlet cover and tighten
firmly with a pipe wrench.
INSTALLATION
5252 East 36th Street North
Wichita, KS USA 67220-3205
TEL: 316-686-7361
FAX: 316-686-6746
“ A G r e a t P l a i n s Ve n t u r e s S u b s i d i a r y ”
www.gpi.net
1-800-835-0113
Rev. - 921407-09
11/02
Figure 1
Install Pump on Tank
1. Before installing the pump, clean the tank interior of all dirt
and foreign material.
2. Lubricate the threads of the inlet cover with Teflon
®
tape
or a thread-sealing compound approved for use with
petroleum fuels.
3. Extend the adjustable suction pipe to its full length and
carefully insert it into tank opening. The suction pipe will
adjust to the length needed and rest on the bottom of tank.
NOTE: The suction pipe supplied has a variable length of 22
to 40 inches. If additional length is needed, order the 15-
inch Suction Pipe Extension Kit.
4. Thread the inlet fitting of the pump onto the tank and turn
the pump to tighten snugly.
NOTE: To prevent the buildup of pressure and possible fuel
leakage through the nozzle, make sure the tank is vented.
Install Hose and Nozzle Assembly
Apply 3 to 4 wraps of Teflon
®
tape to the threaded end of the
hose and hand-tighten into the outlet cover until snug.
Install Handle
The HP-100 Hand Pump gives the operator a choice of two
flow settings:
• 1/4 gallon setting has low resistance and pumps 1/4
gallon per stroke cycle.
• 1/2 gallon setting has higher resistance and pumps 1/2
gallon per stroke cycle.
Volume per stroke is determined by connecting the piston
shaft to the appropriate handle setting as outlined below.
NOTE: Clevis pins may be installed from either side of handle.
1. Slide the handle grip onto the pump handle.
2. To install the links on the pump, insert a long clevis pin
through the link ends and the pump’s link holes. Secure
with a small cotter pin. (Figure 1)
