Size: 4" to 14"
Capacity: 36-3800 m3/h
Head: 6-75 m
Handing solids: 0-130mm
Materials: Hyper chrome alloy, Rubber, Polyurethane, Ceramic, Stainless steel etc.
The Orson® range of OG Gravel pumps is designed specifically for continuous pumping of extremely aggressive slurries, with a wide particle size distribution. Capable of handling large particles at consistently high efficiencies results in low cost of ownership. The large volume internal profile of the casing reduces associated velocities further increasing component life.
Orson® Gravel Pump Design Features
● The unique segmented clamp ring on larger size units and solid on smaller pumps, facilitates casing rotation to any angle, reducing the need for costly high wearing bends. Minimal maintenance is required
● Impeller expulsion vanes reduce gland pressure and intrusion of high concentrations of solids in the gland area. Efficiency is maintained by minimising suction side recirculation.
● Specially designed and shaped impeller vanes allow the handling of extraordinarily large particles. The unique casing design and sealing vanes prevent abrasive solids intrusion at the sealing faces.
● The large, robust casing has been designed to reduce internal velocities resulting in minimum efficiency loss and improved casing wear life. The casing is made up of three components to reduce maintenance time and costs associated with a onepiece design.
● Orson® heavy-duty grease lubricated taper roller bearing assemblies are fitted as standard. A rigid large diameter shaft with reduced overhang minimises deflection and vibration under all conditions ensuring trouble free operation. Unusually high service factors enable the assembly to carry all radial and axial thrusts.
● A unique “-10” (dash 10) end cover assembly comprising of V-seals, double piston rings and an external flinger with grease lubricated labyrinths are standard with all Orson® gravel pump.
The heavy-duty Dredge pump design typically caters for low head high volume duties whereas the Gravel pump is best suited to the higher head cyclone feed and long distance pipeline duties.
Orson® Gravel Pump is the blockage buster
The internal design profile of and Gravel pumps allows particles seldom accommodated by a closed vane pump to be handled. Lost production and screening problems can be avoided by taking advantage of this extraordinary large particle handling capabilities.
▲ The large diameter and Short cantilever ensure the rigidity of the shaft, which is suitable for high power and harsh working conditions.
▲ The hardened stainless steel shaft sleeve has O-rings at both ends to protect the shaft from abrasion and corrosion.
▲ The front and rear cover plates of the impeller have secondary blades, which can reduce backflow and seal pressure.
▲ The Gravel Pump body and the pump cover are made of ductile iron with reinforcing ribs, which ensures the ability to withstand high pressure.
▲ The flow parts are made of a variety of high chromium anti-wear alloys, which have the characteristics of wear resistance, corrosion resistance, impact resistance and so on, greatly improving the service life of the pump.
▲ Different impellers can be selected according to different working conditions.
▲ The outlet position of the pump can be installed and used by rotating eight different angles as required.
▲ There are two different lubrication methods for bearing components, and appropriate lubrication methods should be selected according to different working conditions.
▲ Packing seal: The most widely used sealing form, through the front water seal ring continuously inject a certain pressure of clear water into the packing, to prevent the slurry leakage in the gravel pump, for not suitable for sealing with the secondary impeller, stuffing seal is usually used. The packing sealing structure is simple and the maintenance is convenient.
▲ Mechanical Seal: Used when sealing requirements are relatively high. Especially in some chemical and video fields, not only sealing is required, but also additional components are not allowed to enter the pump chamber.
▲ Secondary impeller seal: Through the impeller acting force of a reverse centrifugal force, prevent the slurry from leaking out. The secondary impeller seal has the advantages of no need of shaft seal water, no dilution of slurry and good sealing effect. Therefore, this sealing form can be considered under the condition that dilution of gravel is not allowed.
Add: No. 028, Tianshan St, High-tech Zone, Shijiazhuang City 050000, China.