1P series external gear pumps Group 1 GEAR PUMPS Quality Products for Mechanical & Fluid Power

an excellence in engineering www.jbj.co.uk/pumpsandmotors.html Reduce noise levels by an average of 15 dBA. Gear pump high pressure, teflon shaft seal can Including group 2, 3 and multiple pumps. The bear over-pressures of over 210 bar. A system of helical profile of the gears reduces pressure radial sealing at the shaft that can bear enormous oscillations and vibrations produced by the pump internal over-pressures without resulting in and transmitted to the other components, reducing damage. This radial sealing is particularly useful in the noise of the hydraulic system. Axial forces single direction...

2 Stage, High / Low Pumps Contents quality products for mechanical & fuid power Page Full range of gear pumps and motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Basic design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1P Series installation and running information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1P Series ordering...

www.jbj.co.uk/gear-pumps.html 0.25 - 0.5 Series Micro Gear Pumps Extensive range and very high performance of these pumps integrated in to micro power packs make them ideal for many applications from aerospace to marine, medical to automotive. 1P Series Gear Pumps High production rates, performance consistency and absolute reliability ensure this a benchmark product for the hydraulic power pack market. ALP Series Gear Pumps This product range includes pumps of displacements (up to 200cc/rev) in a full aluminium configuration, able to withstand medium to high pressures and using different versions...

Gear Pumps Basic Design Drive Gear Driven gear Bushings Body Flange Cover Rotary shaft seal Compensation seals Anti-extrusion seals Stop ring External gear pumps are the most popular pumps used in modern hydraulic systems. They feature versatility, strength and long useful life. Their simple construction ensures limited purchase costs and servicing. Thanks to these basic concepts, together with ever improving product design and features, research based on many years of experience, accuracy in material selection, production process followed in great detail and tests on mass-produced parts, our...

Gear Pumps 1P Series Product RangeMARZOCCHIPOMPE 1P Marzocchi gear pumps are available in different displacements that can be obtained by changing the thickness of the gear toothed band. Different flanges, shafts, inlet and pressure ports are available. The following items are also available: - bi-rotational pumps - pumps with pressure limiting valve - double pumps. Available displacements are indicated below: Special Versions The following 1P models for special uses are available: “V” - Version suitable for fluid hi-temperature applications. Range between -10°C and +120°C with P1, P2 and P3...

Gear Pumps 1P Series Installation and Running Information It is essential for correct running, top performance and longer life of the ALP series hydraulic gear pumps to follow the installation and running information provided in this catalogue. Some general considerations should be made regarding the hydraulic system, in which the pump is to be fitted. Special attention should be given to hydraulic system design and assembly, especially to intake, delivery, return and drain pipes and position of system parts (valves, filters, tanks, heat exchangers and accumulators). Proper safety devices and reliable...

Gear Pumps 1P Series Installation and Running InformationMARZOCCHIPOMPE always pre-filter the fluid when filling up or topping up the system. Fit a proper tank; its capacity should be proportional to the volume displaced in one working minute. Fluid contamination levels should be monitored by use of correct filter types. Two parameters tell which filter is most suitable: absolute filtering power and • • filtering ratio. Low absolute filtering power and high • filtering ratio for small particles help ensuring good filtration. It is then very important to limit not only the size of particulate,...

Gear Pumps 1P Series Installation and Running InformationMARZOCCHIPOMPE Pressure Definition Product tables show three max. pressure levels (P1, P2 and P3) to which each pump can be used. P3 = peak max pressure. P2 = intermittent max. pressure. P1 = continuous max. pressure. Pressure diagram as a function of time. P1, P2 and P3 values can be attained only if system does not go over the following rotation speeds:

Gear Pumps 1P Series Installation and Running Information Direction of Rotation The P1 series gear pumps are available as single rotation and bi-rotational. The direction of rotation is defined in the following way: looking at the front of the pump with the driver shaft positioned upward and sticking toward the observer, it will be a mono-directional right "D". ALP...D pump therefore with right. "D" rotation, if its rotation will be clockwise and therefore the inlet port will be on the left while the outlet port will be on the right. Vice-versa it will be a monodirectional left ALP...S therefore...

Gear Pumps Absorbed power Calculate hydraulic power (P), transferred to fluid from a pump subject to a pressure differential between inlet and delivery as follows: P = (Q • Dp) / (600 • htot) [kW] Q = flow rate [litre/min.] Dp = pressure differential [bar] htot = total pump efficiency (hhm • hvol) Values for hvol and hhm (and consequently htot) depend on pressure differential between supply and delivery, rotation speed, fluid features (temperature and viscosity) and filtering degree. Contact jbj Techniques technical office, email: [email protected] or telephone: +44 (0)1737 767493 for further details on efficiency....