Jiaxing Burgmann Mechanical Seal Co., Ltd. Jiashan King Kong Branch
| O-Ring Material | EPDM / NBR / AFLAS / Kalrez / PTFE |
| Seal Type | Single Spring, Unbalanced |
| Shaft Diameter | 20-100 mm |
| Design Standard | EN12756 / ISO3069 |
| Packaging Details | Carton Packaging with Foam Protection |
| Temperature Range | -20°C ~ 200°C |
| Application | Chemical Pump & Dyeing Finishing Equipment |
| Supply Ability | 10,000 Pieces / Month |
| Max Working Pressure | 1.2 MPa |
| Product Name | JG250 Big Spring Pump Mechanical Seal |
| Payment Terms | T/T,Western Union,MoneyGram |
| Delivery Time | 7-15 Working Days |
| Place of Origin | Zhejiang, China |
| Model Number | JG250B |
| Certification | ISO9001, EN12756 |
| Brand Name | JG |
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Product Specification
| O-Ring Material | EPDM / NBR / AFLAS / Kalrez / PTFE | Seal Type | Single Spring, Unbalanced |
| Shaft Diameter | 20-100 mm | Design Standard | EN12756 / ISO3069 |
| Packaging Details | Carton Packaging with Foam Protection | Temperature Range | -20°C ~ 200°C |
| Application | Chemical Pump & Dyeing Finishing Equipment | Supply Ability | 10,000 Pieces / Month |
| Max Working Pressure | 1.2 MPa | Product Name | JG250 Big Spring Pump Mechanical Seal |
| Payment Terms | T/T,Western Union,MoneyGram | Delivery Time | 7-15 Working Days |
| Place of Origin | Zhejiang, China | Model Number | JG250B |
| Certification | ISO9001, EN12756 | Brand Name | JG |
| High Light | JG250 Big Spring Pump Seal ，EN12756 Compliant Single Spring Seal ，20-100mm 1.2MPa Mechanical Seal | ||
The JG250 big spring pump mechanical seal is a single spring, unbalanced shaft seal engineered to meet the wide demands of chemical pumps, printing and dyeing pumps, and dyeing and finishing equipment. Manufactured in accordance with EN12756 and ISO3069, this big spring pump seal covers shaft diameters from 20 mm to 100 mm and operates at pressures up to 1.2MPa and media temperatures from -20°C to 200°C.
The big spring design keeps the spring unit averted from the pumped product, so there is no sticking or clogging of the springs even when the pump handles fibrous, sticky or solid-containing media. As a stationary design, the JG250 pump seal is insensitive to shaft movements and delivers the advantages of a balanced seal even on plain shafts.
Reliability is built into every JG250 big spring pump seal through material engineering and precision manufacturing. The rotary and stationary rings are available in carbon, silicon carbide, tungsten carbide and ceramic, while O-rings can be supplied in EPDM, NBR, AFLAS, Kalrez or PTFE to match the pumped medium. Springs and metal parts are produced in SUS304, SUS316, titanium and 904L stainless steel for corrosion resistance in aggressive chemical service.
The seal face is locked by a square pin for safe, fracture-free operation, and the design is suitable for pressure reversals and vacuum operation without additional seat locking. Every big spring pump seal is 100% pressure-tested before shipment and backed by our ISO9001 quality management system.
| Parameter | Value |
|---|---|
| Model | JG250A / JG250B |
| Shaft Diameter | 20 ~ 100 mm |
| Working Pressure | ≤ 1.2 MPa |
| Media Temperature | -20 °C ~ 200 °C |
| Sliding Velocity | ≤ 15 m/s |
| Seal Type | Single Spring, Unbalanced |
| Rotation Direction | Independent of direction of rotation |
| Design Standard | EN12756, ISO3069 |
| Rotary / Stationary Ring | Carbon / SiC / Tungsten Carbide / Ceramic |
| O-Ring | EPDM / NBR / AFLAS / Kalrez / PTFE |
| Spring and Metal Parts | SUS304 / SUS316 / Titanium / 904L |
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
1992
Total Annual:
10milion-15milion
Employee Number:
80~100
Ecer Certification：
Verified Supplier
JIAXING BURGMANN is a professional manufacturer of mechanical seal for pump and autoclave used in the mining, industry, agriculture, flange, rubber ring, bushing, hard alloy and Sic. We are specialized in producing Burgmann series seals. We have over 20 years production experience, wit... JIAXING BURGMANN is a professional manufacturer of mechanical seal for pump and autoclave used in the mining, industry, agriculture, flange, rubber ring, bushing, hard alloy and Sic. We are specialized in producing Burgmann series seals. We have over 20 years production experience, wit...
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