Hydraulic hand pumps play an essential role in every industry that requires the testing and calibrating of pressure instruments such as pressure transmitters, gauges, and switches. From energy production and health care to construction and wastewater management, they perform a very necessary function that ultimately helps keep our global economy running safely and efficiently.
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With such a wide range of uses, there&#;s no single hand pump that serves the needs of every application. In this article, we&#;ll take a look at the basic functionality of hydraulic hand pumps and outline some of their most important characteristics.
Hand-operated hydraulic pumps convert mechanical energy into hydraulic energy (a combination of pressure and flow) by delivering hydraulic fluid under pressure through directly applied manual effort. They use the simple principle of a handle providing leverage to an internal piston. The piston then forces hydraulic fluid into the cylinder port. Water and hydraulic oil are the most common fluids, but a variety of pressure media may be used. The hydraulic energy generated is used to supply pressure for testing, adjusting, and calibrating different types of measuring instruments. This differs from pneumatic hand pumps, which generate pressure using air, a very compressible gas, rather than an incompressible fluid medium.
Hydraulic pressure test pumps are ideal for applications where a high level of pressure (10,000 psi or 70 MPa) is required. They&#;re typically used with a digital pressure calibrator to calibrate pressure transmitters and pressure gauges and in pressure switch testing and leak testing. Because they are lightweight and don&#;t require a power source, hand-operated hydraulic pumps are ideal in field testing situations where electric power or compressed gas sources are unavailable or unsuitable. They are especially well suited to hazardous locations in the oil and gas industry where electrically powered equipment is very expensive.
Hydraulic hand pumps have come a long way since their humble beginnings. Today, there are a variety of styles and pressure ranges available, and they are all generally engineered to be rugged, lightweight and easy to use. But there are a few essential characteristics of the hydraulic hand pump that are worth highlighting, particularly in comparison to their pneumatic equivalents.
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Overall, hydraulic hand pumps are designed to increase your operational efficiency. They are available in a wide range of pump styles and flow rates with varying pressure options tailored to different applications.
If you&#;re involved in the energy, oil and natural gas industries and regularly perform pressure calibration testing on instruments, Ralston Instruments offers two Hydraulic Hand Pump models that are definitely worth a look. Oilfields can be particularly rough on hand pumps, but the rugged design of the QTHP psi / 35 MPa and XTHP 10,000 psi / 70 MPa ensures the same level of efficiency, precision, and stability that make hydraulic hand pumps such an excellent choice, both in the field and off. We also offer EPDM seals which are necessary for calibrating Skydrol in the aviation industry and not commonly offered with similar hydraulic gauges.
For questions about hydraulic hand pumps or any of our pressure calibration products, give us a call at 800.347., contact us or get a quote today!
Servo hydraulic systems are used in various industries to control and regulate a wide range of equipment. These systems are powered by hydraulic fluids that create high pressure to control the movement of mechanical components. Read More: https://heicoin.com/blog/advantages-and-disadvantage-of-servo-hydraulic-system/
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