About Long Shen

LongShen seal manufacture Co., Ltd is an innovative State-level high-tech enterprise and attached to Huazhong scientific institute of Fluid. It is specialized in design, innovation, manufacture,sales and service of various mechanical seal, oil(shaft) seal, industrial rubber and seal material(SIC, CA, TC, alumina, PTFE etc.,)

Our advantages
1. We have our own professional mold and rubber workshop to help you make new molds and run mass production.

2. Strong QC and R&D teams to assure high quality products. 
3. Quick shipment (tooling:7-10 days, mass production 1-2weeks). 
4. Experienced sales representatives follow up your new projects with high efficiency. 
5. Small order quantity is welcomed. 
6. Can help you develop the design based on your idea.

Business Scope

1. Mechanical Seal Series with the owning brand: LongShen

2. Valve Series: Solenoid Valves, Thermostatic Valves, Pressure Maintaining Valves

3. Sensor Series: Temperature Sensor, Pressure Sensor

4. Rubber Series: Coupling, Oil Pipe, Gasket,

5. Filter Series: Air Filter, Oil Filter, Oil Separator Replacement 

6. Oil Indicator Series

Descriptions

chanical seal/grease seal /oil seal/screw air compressor parts

2.Available for left-handed rotation, right- handed rotation, irrigational;

3.Available for single lip, double lips, three lips;

4.Small order is acceptable;

5.Customized specifications are welcome.

6.OEM and ODM orders are warmly welcome.

Mechanical Seals

Cartridge seals, shaft seals HF670, 675,676,680

Applications:

Petrochemicals, Oil refining and cooling, The mediums which are oil, Organic solvent, hot Water and other weak corrosive solutions.

Feature:

1) Rotary bellows mechanical seal of Hastelloy-C of low temperature range.

2) This mechanical seal has the ultra-thin double-decked dual "S" welded metal bellow pipe as the elastic component, which have excellent dynamic performance.

3) It have simple and compact structure, as well as easy installation. Less leakage, high sealing  reliability, strong aseismatic ability and long operating cycle.

4. Superior adhered and compensated nature, widely used material, strong adaptiveness to the environment and outstanding high temperature performance. The stationary design improves the sealing general performance much better.

Operating Parameters:

Max. Pressure: Vacuum ~20kg/cm2

Max. Temperature: - 75oC ~ +200oC

Speed: 25m/s