| Mounting | Screw Release |
| Series | P |
| Oil Reservoir | true |
| Manual Pressure Relief Valve | Yes |
| Body Material | Steel |
| Piston | Hard Chrome Plated |
| Maximum Pressure Rating | 1500 PSI |
| Piston Diameter | 1 1/4 in |
| Volume per Stroke | 1.84 in3 |
| Reservoir Volume | 250 in3 |
| Net Weight (w/o Oil) | 29-34 lbs |
| Operating Lever Size | 24 in3 |
P4A-250
With Oil Reservoir
With Adjustable Overload Relief Valve
With Manual Pressure Release Valve
Star P series pumps have built-in reservoirs. Hand operated P series pumps are available with either a screw pressure release valve for a controlled lowering speed, or an easy to operate cam release for a fast, time-saving lowering speed. Hand pumps are supplied complete with operating levers.
Maximum pressure of the hand pump is 10,000 PSI. The adjustable overload will be set at the maximum pressure at the factory unless a lower pressure is specified by the customer. The overload can be adjusted by the customer in the field, if required.
- Standard reservoir capacity to 250 cubic inches-larger sizes available
- Maximum pressure 10000 PSI
- All steel pump bodies
- Pistons ground and hard chrome plated
- Reservoir breather filter.
- 24″ Operating lever supplied
Downloads
- Limited Warranty
All Star pumps are covered by a limited warranty on materials and workmanship for one year from the date of manufacture. Star will repair or replace at its option any pump in which Star finds manufacturing defects. In order to get warranty service a pump must be returned to the Star plant freight prepaid with a written explanation of the problem.
Technical Data
Light hydraulic oil is recommended for use with Star pumps. Oils with SUS viscosity of 75 to 150 at 100 degrees Fahrenheit will give satisfactory performance (ISO grade 15, 22, or 32). In an emergency situation when the above oils are not available, use 5 W or 10 W motor oil or automatic transmission fluid.
All exposed surfaces of standard Star pumps are painted with one coat of industrial quality paint. Pumps painted with special colors with two coat finishes, or with prime coat only, and pumps with special plated or polished parts, are also available.
Dimensional Data
| Standard Reservoirs Capacity cu. In.** | |||
| 80 | 160 | 250 | |
| A | 8 | 8 | 10 |
| B | 3 5/16 | 3 5/16 | 4 5/16 |
| C | 6 5/8 | 6 5/8 | 7 5/8 |
| D | 8 | 8 | 9 |
| E | 1 5/8 | 1 5/8 | 2 1/2 |
| F | 4 | 4 | 6 |
| G | 9 1/2 | 15 1/2 | 10 1/2 |
**Other capacities quoted on request.