Cartridge Mechanical Seal Metering Pump
Cartridge Mechanical Seal Metering Pump
Cartridge Mechanical Seal Metering Pump

Cartridge Mechanical Seal Metering Pump

The cartridge mechanical seal is an integrated rotary shaft sealing device designed to solve the problems of complex installation and easy failure of traditional bulk mechanical seals. It is easy to install, reliable in operation, and has low maintenance costs.

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Product Introduction

Cartridge mechanical seal is a collection that combines all components of mechanical seals such as moving rings, stationary rings, springs, auxiliary seals, and glands.

1. All parts of the seal are assembled into one body and have a compact structure.

2. The seal is pre-assembled into one piece to ensure the working height of the spring, which is beneficial to the seal operating under the designed working conditions.

3. Since the seal is integrated into one unit, the working state of the seal after on-site installation is consistent with that in the laboratory, which improves the reliability of the seal.

cartridge mechanical seal metering pump -1

materials: tool steel, cemented carbide, 304, 316

sealing: packing seal, single and double mechanical seal

installation: motor or footing installation

pressure: 1-100bar (depending upon viscosity)

viscosity: up to 1000000cps

temperature: -18 to 280℃

cartridge mechanical seal metering pump -2

advantage of cartridge mechanical seal metering pump

1. Stable metering accuracy, unaffected by seals.

The core advantage of gear metering pumps is that "flow rate is linearly related to speed". The pre-assembled design of the cartridge seal avoids "shaft end leakage and pressure fluctuation" caused by installation errors of traditional bulk seals. The sealing surface fits evenly and the leakage rate is extremely low. The pressure balance of the pump cavity will not be disrupted by media leakage or air entry, ensuring stable long-term delivery accuracy. It is especially suitable for precise delivery scenarios such as additive injection and drug ratio.

2. Convenient installation and maintenance, reducing downtime costs.

The cartridge seal requires no on-site assembly; simply fix the entire unit to the pump shaft end. An average operator can complete the installation/replacement within 30 minutes. During maintenance, there is no need to disassemble the pump body or gear assembly; the entire seal unit can be replaced directly, significantly reducing downtime (maintenance efficiency is improved by more than 60% compared to traditional seals). It is particularly suitable for continuous production industries such as chemical and pharmaceutical industries.

3. High sealing reliability, adaptable to complex operating conditions.

For gear metering pumps commonly transporting high-viscosity (e.g., lubricating oil, resin), highly corrosive (e.g., acid and alkali agents), and high-temperature, high-pressure (e.g., steam tracing media) media, the cartridge seal can be customized with the following solutions:
High-temperature conditions: Silicon carbide + graphite sealing surface and metal bellows compensation mechanism;
Corrosive media: Hastelloy, PTFE and other corrosion-resistant materials;
High-viscosity media: Optimized spring force and sealing surface contact pressure to prevent media adhesion leading to seal failure.

4. With a long service life and low overall cost, the precise pre-adjustment of the cartridge seal (spring compression, end face parallelism) reduces wear on the sealing surface, extending its service life by 30% to 50% compared to traditional bulk seals. At the same time, it avoids losses such as raw material waste, equipment corrosion, and safety accidents caused by media leakage, resulting in a significant reduction in long-term overall operating costs.

cartridge mechanical seal metering pump