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Wika Mensor’s CPP7000-X Hydraulic Comparison Test Pump is designed with a 100,000 psi pressure range and 250 cm³ reservoir. The pump is essential in applications involving the testing, adjustment and calibration of mechanical and electronic pressure measuring instruments through comparative measurements. By connecting the test item and a sufficiently accurate reference measuring instrument to the test pump, on actuating the pump, the same pressure will act on both instruments. Through comparison of the two measured values at any given pressure value, a check of the accuracy and/or adjustment of the pressure measuring instrument under test can be executed.
| CPP1000-X | CPP1600-X | CPP7000-X | |
| Pressure range | 0 ... 1,000 bar (0 ... 14,500 psi) | 0 ... 1,600 bar (0 ... 23,200 psi) | 0 ... 7,000 bar (0 ... 100,000 psi) |
| Pressure transmission medium | Hydraulic fluid based on mineral oil / clean water, free of calcium-carbonate 1) | Sebacate oil | |
| Reservoir | 250 cm³ | 250 cm³ | |
| Pressure connections | |||
| Test connection | 2 x G ½ female threaded quick-connectors, freely rotating, exchangeable, with O-ring | 2 x M16 x 1.5 male thread, freely rotating, exchangeable, with sealing cone | |
| Distance between test connections | 300 mm (11.8 in) | 346 mm (13.6 in) | |
| Piston of the comparison test pump | |||
| Piston diameter | 8 mm (0.3 in) | 7.5 mm (0.3 in) | |
| Swept volume per revolution | approx. 0.1 cm³ | approx. 0.08 cm³ | |
| Overall swept volume | approx. 3.9 cm³ | approx. 2.5 cm³ | |
| Required force at | |||
| 250 bar (3,600 psi) | 2.0 Nm | 1.5 Nm | |
| 500 bar (7,200 psi) | 4.0 Nm | 3.0 Nm | |
| 1,000 bar (14,500 psi) | 8.0 Nm | 6.0 Nm | |
| 3,000 bar (43,500 psi) | -- | 18 Nm | |
| 5,000 bar (72,500 psi) | -- | 30 Nm | |
| 7,000 bar (100,000 psi) | -- | 42 Nm | |
| Material | |||
| Cylinder | Brass | Stainless steel | |
| Piston | Stainless steel | hardened stainless steel | |
| Piping | 1.4404 stainless steel, 6 x 2 mm (0.2 x 0.1 in) | 1.4404 stainless steel, 6 x 2 mm (0.2 x 0.1 in) | |
| Rear flange | Aluminium | -- | |
| Sealings | FKM, NBR (standard), optional EPDM 2) | NBR | |
| Stationary mounting | Stable base | Stable base | |
| Instrument base | |||
| Dimensions (L x W x H) | 400 x 375 x 265 mm (15.8 x 14.8 x 10.4 in) | 460 x 445 x 265 mm (18.1 x 17.5 x 10.4 in) | |
| Weight | 20 kg (44.1 lbs.) | 32.5 kg (71.7 lbs.) | |
1) Other pressure transmission media on request.
2) Using the EPDM variant (for aggressive media), Skydrol or brake fluid is permissible as pressure transmission medium.
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- Simple test pressure generation on site, in the laboratory or in the workshop
- For the testing, adjustment and calibration of all types of pressure measuring instruments
- Hydraulic pressure generation up to 7,000 bar (100,000 psi)