Production Description
1. Feature
- Standardized design
- Composite transmission has lower friction damping and more uniform transmission force
- The positioning and installation of the fastening screw are simple and easy to adjust
- Without necessity to check the installation dimensions. The springs are out of the media and this ensure no – clogging troubles free operation.
2. Material
We can provide materials not mentioned above to meet the requirements of different occasions. If needed, please contact Asino company
3. Aplications
Oil and gas, chemical, metallurgical, pharmaceutical, food, water treatment
4. Background
The importance of sealing liquid is essential for double mechanical seal for pump
a. The core function of sealing and lubrication
Double mechanical seal for pump achieve dual protection through two sealing end faces. The sealing fluid system injects sealing fluid (also known as sealing oil, buffer fluid, etc.) into the sealing chamber, forming a liquid film between the end faces:
Sealing function: isolate the process medium from the external environment, prevent medium leakage and impurity intrusion;
Lubrication function: reduce end face friction and wear, extend sealing life;
Cooling effect: timely removal of heat generated by friction to avoid end face failure due to high temperature
b. API standards and adaptation to working conditions
According to the API 682 standard, dual end mechanical seals require the selection of corresponding flushing schemes (such as Plan 52, Plan 53A, etc.) based on the operating conditions, and all schemes must be accompanied by a sealing fluid system. The selection of sealing fluid should consider characteristics such as viscosity, thermal conductivity, and chemical compatibility to adapt to complex working conditions such as high temperature, high pressure, and strong corrosion
c. Failure monitoring and safety
The sealing system is not only a support for sealing work, but also a monitoring method for sealing failure. For example, in a non pressure double mechanical seal for pump, if the primary seal fails, the process medium will enter the sealing system, and an alarm can be triggered in a timely manner through changes in pressure or liquid level to avoid the risk of leakage
d. Exceptional circumstances for special scenarios
In rare cases (such as non-contact dry gas seals), traditional sealing fluid may not be required, but this type of seal belongs to a special design and is not suitable for the scope of conventional double mechanical seal for pump
summary
The sealing system of double mechanical seal for pump is an indispensable component, which directly affects the sealing performance, equipment safety, and maintenance cost. In practical applications, it is necessary to choose the appropriate sealing liquid type and flushing scheme based on the characteristics of the medium and the requirements of the working conditions.
Company Profile

Shipping Package

FAQ
Question 1: Are you a factory or a trade company?
Asinoseal : We are a factory with 3000㎡area with over 40 workers.
Question 2: Where is your factory located? How can I go there?
Asinoseal: Our factory is located in Zhangjiagang City,Suzhou, near Shanghai .
Question 3 How can I trust your quality?
Asinoseal: Our company passed ISO9001:2008,and strictly follow this standard,we have strict QC from raw material QC to QC before shipping to ensure our quality. Quality lists always first in our company.
Question 4: When can I get my order after placing it?
Asinoseal: For stock one,3-7 days, non-standard one 30-35 days
Question 5: What's payment term?
Asinoseal: For first cooperation,it has to be 100% before production,but for long-term cooperation,it could be adjusted
Question 6: Can you make mechanical seals according to our drawing?
Asinoseal: Absolutely yes,that's our advantage
Question 7: What's your company's advantage product?
Asinoseal : Agitator seals,cartridge seals and metal bellow seals,we always have good price and quality

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