Germany Maximator seals Maximator models Maximator prices

Maximator seals utilize the "container" concept from transportation to create cartridge seals. The rotating and stationary parts of this seal are pre-assembled into a single unit before installation. After inspection and pressure testing, the unit is mounted on the shaft within the stuffing box, fixed to the shaft with set screws, and the gland bolts are tightened. Once the cartridge positioning tabs are removed, the mechanical seal operates with parallel faces and is ready for service. This approach not only simplifies assembly but also ensures assembly quality. Welded metal bellows mechanical seals are all designed as cartridge seals, offering these advantages. Cartridge seals are also a type of cartridge mechanical seal. In this design, the stationary ring, rotating ring, sleeve, gland, and auxiliary seals are all assembled onto a single sleeve before installation, facilitating inspection of assembly quality. After passing inspection, simply tighten the seal cover and secure the screws. This pre-assembled, inspected, and tested seal component makes it easier to ensure installation and assembly quality.

Maximator seal classification

1) Packing seal: The packing seal has a simple structure, low cost, and is easy to maintain. However, it has high leakage and significant power loss. Therefore, packing seals are used for transporting general media such as water; they are generally not suitable for petroleum and chemical media, especially for valuable, flammable, explosive, or toxic media. 2) Mechanical seal: Mechanical seals (also known as face seals) provide good sealing performance with minimal leakage and long service life, but they are expensive and have higher requirements for machining, installation, maintenance, and repair compared to general seals. Mechanical seals are suitable for transporting petroleum and chemical media and can be used with media of various viscosities, strong corrosiveness, and containing particles. The American Petroleum Institute standard API610 (8rd edition) stipulates that cartridge mechanical seals shall be installed unless otherwise specified by the user. 3) Dynamic seal: Dynamic seals are divided into back-vane seals and auxiliary impeller seals. During pump operation, the centrifugal force of the back vanes (or auxiliary impeller) reduces the medium pressure at the shaft seal to atmospheric or negative pressure, preventing leakage during use. When the pump stops, the centrifugal force disappears, and the sealing effect of the back vanes (or auxiliary impeller) fails; at this point, the shutdown sealing device provides the seal. Packing seals are commonly used in shutdown sealing devices paired with back-vane (or auxiliary impeller) seals. Packing seals come in two types: standard and mechanically adjustable. Standard packing seals are similar to those in general packing seal pumps, requiring slight positive pressure at the shaft seal to prevent dry friction of the packing. Mechanically adjustable packing seals use counterweights to loosen the packing during pump operation and tighten it when stopped. Dynamic seals offer reliable performance, low cost, and easy maintenance, making them suitable for media containing many solid particles, such as slurry pumps and feed slurry pumps in the phosphate industry. The disadvantages are higher power loss compared to mechanical seals and shorter service life for the shutdown sealing device. The seal between the rotating pump shaft and the stationary pump casing is called the shaft seal. Its function is to prevent high-pressure liquid from leaking out along the shaft or outside air from entering along the shaft. For centrifugal pumps, the shaft seal is a dynamic seal. Depending on whether the sealing surfaces contact each other, dynamic seals are classified as contact and non-contact. Contact dynamic seals involve contact between the sealing device and the shaft, resulting in relative friction. Contact dynamic seals include packing seals and mechanical seals.

Maximator seal operation

1) If slight leakage occurs after the pump starts, observe it for a period. If the leakage does not decrease after 4 hours of continuous operation, stop the pump for inspection. 2) The pump operating pressure should be stable, with pressure fluctuations not exceeding 1 kg/cm². 3) During pump operation, avoid cavitation to prevent dry friction of the seal faces and seal damage. 3) Regularly inspect the sealing condition. During operation, if leakage exceeds the standard (not more than 5 drops/min for heavy oil, not more than 10 drops/min for light oil), and there is no improvement within 2-3 days, stop the pump to inspect the sealing device.

Maximator seal specifications and applications

1) Standard single-lip: Generally used for sealing mineral oil, water, and other media on high- and low-speed rotating shafts and reciprocating motion. Standard oil seals are used in environments with little dust and impurities, resistant to medium pressure< 0.05MPa, maximum linear speed 15m/s, reciprocating speed< 0.1m/s. 2) Standard double-lip: In addition to the usage characteristics of the above S type oil seals, they also provide dust protection. Standard oil seals with a dust lip can prevent dust ingress, resistant to medium pressure< 0.05MPa, linear speed ≤ 15m/s. 3) Springless type: Springless single-lip inner-case rubber oil seal. Generally suitable for low-speed conditions where the sealed medium is lubricating grease. Linear speed ≤ 6m/s. 4) Outer-case single-lip: Single-lip outer-case rubber oil seal with spring, featuring a thin waist, good follow-up, and good rigidity. Standard oil seals are used in environments with little dust and impurities, resistant to medium pressure< 0.05MPa. For rotational axis speeds ≤ 15m/s. 5) Outer-case double-lip: Double-lip outer-case rubber oil seal with auxiliary lip, featuring a thin waist, good follow-up, high rigidity, and good concentricity. Standard oil seals with a dust lip can prevent dust ingress, resistant to medium pressure< 0.05MPa. Speed ≤ 15m/s. 6) Assembled single-lip: Outer-case oil seal assembled from inner and outer cases with rolled edges, offering high installation precision, fast heat dissipation, and heavy-load characteristics. Suitable for heavy-load conditions under high temperature and high speed, medium pressure ≤ 0.05MPa, maximum linear speed ≤ 15m/s. 7) Unidirectional return flow type (right-hand, left-hand): Angled ribs are manufactured on the air side of the lip, utilizing fluid dynamics principles to generate a unidirectional pumping action with a return flow effect. Related to the shaft rotation direction, the return flow effect results in lower radial force than standard oil seals, reducing wear and heat generation, and extending service life. Suitable for medium pressure< 0.05MPa, speed ≤ 20m/s. 8) Pressure-resistant type: Short lip and short, thick waist provide pressure resistance, working pressure ≤ 3MPa. Suitable for applications with medium pressure ≤ 3MPa, suitable for shaft end oil seals of high-pressure pumps. Generally, the PV value ≤ 8. Rotational axis speed ≤ 15m/s.

Weidou Intelligent Technology specializes in selling German Maximator seals, Maximator O-rings, Maximator sealing strips, Maximator pipe seals, Maximator cable seals, Maximator rubber seals, Maximator mechanical seals, Maximator gaskets, Maximator oil seals, Maximator shaft seals, Maximator metal seals, Maximator high-pressure seals, Maximator spiral seals, Maximator centrifugal seals, Maximator sealing rings, Maximator original German imports. Welcome inquiries and orders from users.