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Text version of the page
| Configuration of High Pressure Gear Pump KP 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||
| 1 Housing 2 Gearing 3 Drive Shaft End 4 Flange Mounting Cover 5 End Cover 6 Double-Gland Bearing with special plane bearing bushes 7 Rotary Shaft Lip-Type Seals 8 Pressure Field Sealing for axial clearance compensation 9 Sealing of the Housing | General Characteristics | |||||||||||||||||||||||||||||||||||||||||||||||||
| 589621 473 | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Mounting Pipe Connection Direction of Rotation Weight Fitting Position Permissible Ambient Temperature Range | Flange and Foot-Type Flange Type, G-GAs thread on request Clockwise or Anticlockwise refer to Dimensional Sheets Optional $u min = - 20 °C | |||||||||||||||||||||||||||||||||||||||||||||||||
| + 60 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Operating Characteristics | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Description | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Operating Pressures Inlet Port Short Time Outlet Port Fluid Temperature Range | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Accordingly to its configuration - the Design Principle is illustrated by the Sectional Figure - the Kracht External Gear-Type Pump Series KP1 is to be classified into the category of the so-called Gland-Type Bearing Pumps. All essential functional parts as the gearing and the gland bearings are located in an aluminium housing (cast iron on request possible) manufactured of a high strength extrusion alloy which are closed on each side by an end cover or by a flange mounting cover respectively. The gearing of case hardening steel in surface hardened condition consists of the driving shaft pinion and the driven shaft pinion. Highest manufacturing quality is assured by grinding and honing of the tooth flanks. The surfaces of the journals are superfinished. An important reduction of the type dependent deviation of the volumetric flow and of the pressure pulsation incident thereto was achieved on the basis of the great teeth number (z = 13) and of the specially shaped teeth. The gland bearings located on both sides of the gearing carry the journals in heavyduty multicompo-nent plane bearing bushes and contain additionally those sealing elements which serve for the pressure field sealing to compensate the axial clearance. All sealings are optionally available in Perbunan (NBR) or Viton (FPM) compounds in dependence on the different applications concerning the temperature ranges and/or medium requirements. If required the pumps can be supplied with a Pressure Relief Valve-Type DBD... - directly attached to the pump or with special valve arrangements assembled onto the pump instead of the end cover. Manifold Pump Combinations are available as well. | ||||||||||||||||||||||||||||||||||||||||||||||||||
| pe min pe max pe max p m ax Am max | - 0.4 bar (Vacuum) 2 bar 5 bar see technical Data 90 °C for NBR-Rotary | |||||||||||||||||||||||||||||||||||||||||||||||||
| Shaft Lip-Type Seal 100 °C for FPM-Rotary Shaft Lip-Type Seal | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Viscosity Range Recommended Oil Cleanliness Recommended Filtration | ||||||||||||||||||||||||||||||||||||||||||||||||||
| vmin vmax | 10 mm2/s 600 mm2/s | |||||||||||||||||||||||||||||||||||||||||||||||||
| Class 19/16 acc. to ISO /DIS 4406 Class 10 acc. to NAS 1638 Filter with Filtration Quotient P25 > 75 for ... 300 bar P40 > 75 for ... 100 bar | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Recommended Viscosity Range Discharge Flow Input Power Hydraulic Fluids | ||||||||||||||||||||||||||||||||||||||||||||||||||
| 45 mm2/s | ||||||||||||||||||||||||||||||||||||||||||||||||||
| 30 | ||||||||||||||||||||||||||||||||||||||||||||||||||
| v | ||||||||||||||||||||||||||||||||||||||||||||||||||
| refer to Charts Page 4 refer to Charts Page 4 Mineral Oil acc. to DIN 51524/25 Engine Oil acc. to DIN 51511 Bio-oils of type „HEES", can be used up to 70 °C, max. pressure must be reduced minus 20% (use only on request) | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Special Note | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Materials | ||||||||||||||||||||||||||||||||||||||||||||||||||
| 1. External Loads Loads acting on the drive shaft end from outside impair the functions of the doublegland bearing. Radial loads can be absorbed in dependence on the extent and the direction of the loads. Axial loads are NOT permissible. To absorb outer loads only those pump types shall be used which are equipped with an Outboard Bearing. 2. Direction of Rotation Regarding the direction of rotation basically the following applies provided the view is directed toward the drive shaft end: Drive shaft end rotating clockwise: Flow direction from left to right. Drive shaft end rotating anticlockwise: Flow direction from right to left. | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Housing Bearing Journals and Gears Seals | Aluminium-Alloy, Cast Iron on request Double-Gland Bearing with Multi-component Plane Bearing Bushes Case Hardening Steel acc. to DIN 17210 Surface Hardened and Ground 1 NBR Rotary Shaft Lip-Type Seal # < 90 °C 2 FPM Rotary Shaft Lip-Type Seal # < 100 °C | |||||||||||||||||||||||||||||||||||||||||||||||||
| 2 KRACHT GmbH • Postbox 1420/1440 • D-58774 Werdohl • Phone 0049 (23 92) 935-0 • Fax 0049 (23 92) 935 209 • Internet: www.kracht-hydraullk.de • e-mail: mobllhydraullk6kracht-hydraullk.de | ||||||||||||||||||||||||||||||||||||||||||||||||||