Single and Double Rubber Cartridge Mechanical Seal

Single and Double Rubber Cartridge Mechanical Seal

• Modular Convertibility: Easy switch between single/double configurations using common parts.

• Optimized Rubber Formulation: High-grade NBR/EPDM/FKM compounds for long life.

Model:320
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Key Features


• Axial Flexibility: Rubber components compensate for shaft runout and misalignment.

• Double Seal Barrier: Zero emissions option for toxic or hazardous fluids.

• Non-Pusher Protection: Bellows grip the shaft, protecting it from fretting wear.



Technical Specs

Materials

Mediums

Chemical, Food, Oil, Petroleum, Pharmaceuticals Paper and pulp, Sewage treatment

Stationary Ring

Carbon/Sic/Ssic/TC

Temperature

Elastomer Dependent

Rotary Ring

Sic/Ssic/TC

Pressure

≤2.8MPa

Secondary Seal

Viton/EPDM/Chemraz/Kalrez/Aflas, etc

Speed

≤35m/s

Spring and Metal Part

Stainless Steel/Hast C


CF320-1.jpg
CF320-2.jpg



Product Specifications


D1 (mm)D2D3D5L1L2L3L5
2544.510412.535542462
2847.510412.535542462
3049.510412.535542467
3251.510412.535542467
3351.510412.535542467
3554.511012.535542470
3857.512514.735542475
4059.512514.735542475
4261.513314.735542480
4362.513314.735542480
4564.514014.735542482
4867.514014.735542482
5069.514014.735542487
5372.515017.535542492
5574.515017.535542492
6079.516017.5355424100
6584.516517.5355424105
7089.518017.5355424120
7510219017.5395826125
8010719017.5395826130
8511222021.5395826135
9011722021.5395826140
9512222021.5395826145
10012722021.5395826150


D1 (inch)D2D3D5L1L2L3L5
1.0001.7524.0940.4921.3782.1260.9842.441
1.1251.8704.0940.4921.3782.1260.9842.441
1.2502.0274.0940.4921.3782.1260.9842.638
1.3752.1464.3310.4921.3782.1260.9842.756
1.5002.2644.9210.5791.3782.1260.9842.953
1.6252.4215.2360.5791.3782.1260.9843.150
1.7502.5395.5120.5791.3782.1260.9843.228
1.8752.6575.5120.5791.3782.1260.9843.228
2.0002.7365.9060.5791.3782.1260.9843.425
2.1252.8546.1020.6891.3782.1260.9843.622
2.2503.0516.2990.6891.3782.1260.9843.937
2.3753.1306.4690.6891.3782.1260.9843.937
2.5003.2486.6930.6891.3782.1260.9844.055
2.6253.4457.0670.6891.3782.1260.9844.724
2.7503.5237.4800.6891.3782.1260.9844.724
2.8753.9377.4800.6891.5352.2831.1814.843
3.0004.0167.4800.6891.5352.2831.1814.921
3.1254.2138.6610.6891.5352.2831.1815.118
3.2504.3318.6610.8461.5352.2831.1815.236
3.3754.4108.6610.8461.5352.2831.1815.315
3.5004.6078.6610.8461.5352.2831.1815.512
3.6254.6858.6610.8461.5352.2831.1815.591
3.7504.8048.6610.8461.5352.2831.1815.709
3.8755.0008.6610.8461.5352.2831.1815.906
4.0005.0008.6610.8461.5352.2831.1815.906



Workshop


This workshop is equipped with professional processing equipment and integrated with standardized material warehousing management, enabling a one-stop production process from precision machining to finished product delivery. It ensures part machining accuracy and production efficiency, meeting various high-specification manufacturing requirements.


Metal Bellows Seals for High Temperature Pumps 606
Metal Bellows Seals for High Temperature Pumps 606
Metal Bellows Seals for High Temperature Pumps 606
Metal Bellows Seals for High Temperature Pumps 606



Product Research, Development and Testing


Our Product R&D and Testing focuses on optimizing seal performance through advanced simulation and material analysis. All seals undergo rigorous trials, including thermal cycling and pressure tests, to ensure durability, minimal leakage, and long service life in demanding industrial environments.


R&D and Design.jpg
microscope.jpg
Light band detection.jpg
pressure test.jpg



Industry Solutions


Metal Bellows Seals for High Temperature Pumps 606
Metal Bellows Seals for High Temperature Pumps 606
Metal Bellows Seals for High Temperature Pumps 606
Metal Bellows Seals for High Temperature Pumps 606




Case Study


Wastewater Plant: Fibers caused hang-up in standard seals at a municipal plant. Our Double Rubber Cartridge eliminated sticking points and provided a clean lubrication film.

Testimonials


Versatility is key for us. Being able to order single or double seals from the same catalog simplifies our stock significantly.

—Procurement Lead, Water Treatment Facility



FAQs about Metal Bellows Seals for High Temperature Pumps


Q: When should I choose the Double seal arrangement over Single?

A: You should choose a Double seal if the media is toxic, flammable, hazardous, contains high concentrations of abrasives, or is prone to crystallizing (like sugar syrup or glue). The double arrangement provides a safety buffer fluid that lubricates the faces and prevents process media from leaking into the atmosphere.

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If you have any questions about our products and services, please feel free to contact us. Our team will get in touch with you within 24 hours!
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    Our company is specialized in the production of sealing materials, mechanical seals , cartridge seals.

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