1.1 KiB
Model TR-88 Manual Transfer Pump
The TR-88 is a hand-operated diaphragm pump intended for moving potable water between storage containers where no power is available.
Specifications
- Rated flow: 4.5 liters per minute at 60 strokes per minute
- Maximum suction lift: 6.5 meters
- Wetted materials: polypropylene body, EPDM diaphragm, stainless steel hardware
- Dry weight: 1.9 kg
- Inlet and outlet: 25 mm barbed
Maintenance
Replace the EPDM diaphragm every 500 operating hours or every three years, whichever comes first. The diaphragm is the only wear part that will strand the pump; everything else degrades gracefully.
Flush with clean water after every use. The TR-88 tolerates silty water but the check valves will stick if sediment is allowed to dry inside the chambers.
Known limitation
The TR-88 must not be used with any fluid above 40°C. The EPDM diaphragm softens above that point and will deform permanently against the seat, after which the pump will not hold prime.
Spares kit
The TR-88 spares kit, part number TR88-SK2, contains two diaphragms, a set of four check valve umbrellas, and two barb O-rings.