YUEMI
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability | 500/Set/Month |
| Delivery Time | 5-8 work days |
| Packaging Details | Details Carton |
| Dimensions | Depend your model |
| Speedlimit | ≤10m/s |
| Elatomer | NBR, EPDM, Viton |
| Transport Package | YUEMI Standard or Customised |
| Model No | ST |
| Product Type | Armstrong Pump Seal |
| Brand Name | YUE MI |
| Model Number | ST |
| Certification | ISO SGS |
| Place of Origin | Guangzhou, China |
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Supply Ability | 500/Set/Month |
| Delivery Time | 5-8 work days | Packaging Details | Details Carton |
| Dimensions | Depend your model | Speedlimit | ≤10m/s |
| Elatomer | NBR, EPDM, Viton | Transport Package | YUEMI Standard or Customised |
| Model No | ST | Product Type | Armstrong Pump Seal |
| Brand Name | YUE MI | Model Number | ST |
| Certification | ISO SGS | Place of Origin | Guangzhou, China |
| High Light | Type ST Armstrong pump mechanical seal ，John Crane mechanical seal for fluid containment ，4300 series water pump seal | ||
| d(inch) | d(mm) | D1 | D3 | L1 | L2 | L3 |
| YM ST-1-1/8 | 28.575 | 59.40 | 47.60 | 25.30 | 25.60 | 15.90 |
| YM ST-1-5/8 | 41.275 | 71.80 | 62.00 | 25.30 | 29.50 | 15.90 |
| YM ST-2-1/8 | 53.975 | 84.60 | 79.40 | 25.30 | 29.30 | 15.90 |
| YM ST-2-5/8 | 66.675 | 111.0 | 88.90 | 25.30 | 41.30 | 15.90 |
| Parameter | Value/Description | Unit/Note | |
|---|---|---|---|
| Model | YM-ST | Standard Temperature (ST) or Special Type mechanical seal | |
| Seal Type | Single-Spring Unbalanced Seal | Cost-effective for general industrial applications | |
| Face Materials | - Rotating: Carbon Graphite - Stationary: Silicon Carbide (SiC) |
Graphite/SiC pairing for moderate wear resistance | |
| Housing Material | Stainless Steel 304 (Standard) - 316L (Optional) |
316L for corrosion resistance in chemical environments | |
| Pressure Range10 | 1.2 | MPa | Suitable for low-to-medium pressure pumps (e.g., water, oil) |
| Shaft Diameter Range | 20 mm - 60 mm | Common shaft sizes in pumps and mixers | |
| Maximum Rotational Speed | 2900 | RPM | Matches standard motor speeds (50 Hz) |
| Temperature Range | -20°C ~ 140°C | Elastomer: NBR (standard); FKM up to 180°C (optional) | |
| Leakage Rate | ≤10 | m/s | Meets ISO 21049 standards for non-critical services |
| Media Compatibility | - Water, Mineral Oils, Aliphatic Hydrocarbons | Not recommended for strong acids, alkalis, or solvents | |
| Installation Type | Insertion-Mounted (Simple Axial Fit) | Requires basic alignment; suitable for field repairs | |
| Elastomer Material | NBR (Standard) - FKM (For High-Temp/Chemicals) |
NBR: pH 6-8 compatibility; FKM: pH 0-14 | |
| Standards Compliance | ISO 21049, RoHS | Certified for environmental and safety requirements | |
| Key Features | - Anti-Rotation Pin - Pre-Lubricated Faces - Economical Spare Parts |
Simplified maintenance; ideal for non-critical processes |
Company Details
Year Established:
2002
Total Annual:
3000000-5000000
Employee Number:
50~80
Ecer Certification：
Verified Supplier
Guangzhou Yuemi Mechanical Seals Co., Ltd Guangzhou Yuemi Mechanical Seals Co., Ltd. is a professional enterprise engaged in the design, development, manufacturing, and sales of various mechanical seals. We have complete production and testing equipment, and a high-quality workforce. It has f... Guangzhou Yuemi Mechanical Seals Co., Ltd Guangzhou Yuemi Mechanical Seals Co., Ltd. is a professional enterprise engaged in the design, development, manufacturing, and sales of various mechanical seals. We have complete production and testing equipment, and a high-quality workforce. It has f...
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