Product Description

Hydraulic pumps of type PGH.-3X are gap-compensated internal gear pumps with fixed displacement.They mainly consist of: Mounting flange, housing,cover with through-drive, pinion shaft, internalgear, sliding bearings, axial washers and stop pin as well as the radial compensation consisting of segment, segment support and the seal rolls.The hydro-dynamically mounted pinion shaft drives the toothed internal gear in the direction of rotation shown.The tooth clearances opening in the suction area prime the fluid. The fluid is transported into the tooth clearances of pinion and internal gear, from the suction area into the pressure area.There, the fluid is displaced from the closing tooth clearances and delivered into the pressure port.Suction and discharge area are separated by the radial compensation elements and the tooth engagement between internal gear and pinion shaft.

With pressure lines, sufficient bursting resistance of thetubes, hoses and connection elements has to be ensured.The cross-sections should be based on the maximum flow in order to avoid additional excessive load of the pump due to backpressure. In this connection, you must also consider the pipe losses across the entire pressure line length and other line resistances (e.g. bends, pressure filters).The internal gear pump PGH is not equipped with devices for compliance with the maximum operating pressure. Setting and limiting the admissible operating pressure has to be ensured on the system side.The pressure relief valves necessary for that purpose are to be designed considering the maximum flow and the existing
pressure increase speed so that the admissible intermittent operating pressure is not exceeded.In the variable-speed drive, the pump can temporarily also be operated below the specified minimum speed, in the pressure holding function. The holding time and the related necessary
speed result from the operating viscosity and the pressure level. For the design, please contact Bosch Rexroth's Technical Sales.In the deactivated condition (speed = 0), a leakage flow flows through the pump back into the reservoir, depending on the load pressure. If this is to be securely prevented, a check valve has to be used.When using a check valve, please observe the information on bleeding in chapter 2.1.

FAQ

Q1: Wonder if you accept small orders?
A1: Do not worry. Feel free to contact us .in order to get more orders and give our clients more convener ,we accept small order.

Q2: Can you send products to my country?
A2: Sure, we can. If you do not have your own ship forwarder, we can help you.

Q3: What's your payment terms ?
A3: By T/T,LC AT SIGHT,100% full payment.

Q4: How long is your production lead time?
A4:It depends on product and order qty. Normally, it takes us 15 days for an order with MOQ qty.

Q5: When can I get the quotation ?
A5: We usually quote you within 24 hours after we get your inquiry. If you are very urgent to get the quotation.Please call us or tell us in your mail, so that we could regard your inquiry priority.

Fujian Zhichuan Mechanical Equipment Co., Ltd. is a company specializing in the import of electronic hydraulic products trade and sales.Our aim is to provide our customers with high quality imported machinery products andexcellent after-sales service. Our main business covers the fields of construction machinery,photovoltaic equipment, vacuum equipment, mining equipment and metallurgical and automo-tive equipment industries, providing various types of power equipment, electromechanicalproducts, assemblies and components. We sell hydraulic components of well-known brands athome and abroad and sell and design hydraulic cylinders, hydraulic complete systems, customhydraulic systems and renovation projects.

Our products are widely used in major domestic petroleum machinery plants, oil fields. mines, smelters, engineering machinery plants, shipbuilding plants, heavy vehicle manufactur-ing plants and other enterprises and research institutes. Meanwhile, in the field of mining equipment, we have rich experience and advantages and can provide customers with mining equip-ment, mining drilling rigs and accessories, open pit mining equipment, crushing equipment,grinding equipment, ore dressing equipment feeding equipment, conveying equipment, screen-ing equipment lifting storage and transportation equipment, complete sets of safety protectionand monitoring equipment for mining machinery, etc.

In the field of construction machinery, our products such as crawler excavation machinery. wheeled excavation machinery, loading machinery, earth-moving machinery, lifting machinery,industrial vehicles, compaction machinery, heavy vehicles, amphibious vehicles and somehydraulic packages for special vehicles are also widely recognized by our customers. in addi-tion, we also provide tunnel construction sets, pneumatic tools, military construction machinery and other products.

As a professional imported machinery products company, we focus on product quality andservice, and have gathered a group of highly qualified technicians and maintenance personnelwho are able to provide professional technical support and maintenance services to ourcustomers. We implement network sales of stock products through cooperation with distributorsaround the world, and it is our development direction and goal to establish a mutual trust, stableand long-lasting relationship. At the same time, we pursue the principle of following the rulesand cooperating with each other in good faith.