5/8" Rotating & Stationary Cartridge Mechanical Seals

5/8" Rotating & Stationary Cartridge Mechanical Seals

Model NO.: Type 21 mechanical seal

Specification: 1'',1 1/4'',1 3/8'',1 5/8'',1 3/4'',1 7/8'',2 1/8'

Temperature: high temperature mechanical seal

Balance: Unbalanced

Type: Multi-Spring

Accreditation: ISO, SGS, UL, ROHS

Service: OEM/ODM

Origin: China

Model:300
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Key Features


• Standardized ANSI Fit: Precisely dimensioned for the common 5/8" shaft size found in thousands of pump models, ensuring high compatibility for rotating mechanical seal and stationary mechanical seal configurations. This makes our 5/8" Mechanical Seals the ideal drop-in solution for a wide range of equipment.

• Simplified Upgrade Path: The easiest way to convert from packing or component seals to a cartridge system featuring either a rotating mechanical seal or a stationary mechanical seal design, reducing installation time by 70%.

• Robust Stationary Element: Features a pin-locked stationary seat that prevents rotation and ensures stability for the stationary mechanical seal component, even during start-up torque spikes, providing reliable sealing performance.

• Pre-Set Working Length:5/8" Mechanical Seals are factory-assembled to the exact working height, removing the need for technicians to mark shafts or calculate compression, whether you choose a rotating mechanical seal or stationary mechanical seal assembly.

• Hydraulically Balanced: The rotating mechanical seal face geometry is balanced to handle pressure fluctuations without separating or overheating, ensuring the long-term reliability of the entire stationary mechanical seal and rotating assembly.



Technical Specs

5/8" Mechanical Seals 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


CF300-1.jpg
CF300-2.jpg



Product Specifications


D1 (mm)D2D3D5L1L2L3L5
43.510412.519382562
2543.510412.519382562
2846.510412.519382562
3048.510412.519382567
3250.510412.519382567
3350.510412.519382567
3553.511012.519382570
3856.512514.719382575
4058.512514.719382575
4260.513314.719382580
4361.513314.719382580
4563.514014.719382582
4866.514014.719382582
5068.514014.719382587
5371.515017.519382592
5573.515017.519382592
6078.516017.5193825100
6583.516517.5193825105
7088.518017.5193825120
7510019017.520.541.530125
8010519017.520.541.530130
8511022021.520.541.530135
9011522021.520.541.530140
9512022021.520.541.530145
10012522021.520.541.530150


D1 (inch)D2D3D5L1L2L3L5
1.0001.7134.0940.4920.7481.4960.9842.441
1.1251.8314.0940.4920.7481.4960.9842.441
1.2501.9884.0940.4920.7481.4960.9842.638
1.3752.1074.3310.4920.7481.4960.9842.756
1.5002.2254.9210.5790.7481.4960.9842.953
1.6252.3825.2360.5790.7481.4960.9843.150
1.7502.5005.5120.5790.7481.4960.9843.228
1.8752.6185.5120.5790.7481.4960.9843.228
2.0002.6975.9060.5790.7481.4960.9843.425
2.1252.8156.1020.6890.7481.4960.9843.622
2.2503.0126.2990.6890.7481.4960.9843.937
2.3753.0916.4690.6890.7481.4960.9843.937
2.5003.2096.6930.6890.7481.4960.9844.055
2.6253.4067.0670.6890.7481.4960.9844.724
2.7503.4847.4800.6890.7481.4960.9844.724
2.8753.8587.4800.6890.8071.6341.1814.843
3.0003.9377.4800.6890.8071.6341.1814.921
3.1254.1348.6610.6890.8071.6341.1815.118
3.2504.2528.6610.8460.8071.6341.1815.236
3.3754.3318.6610.8460.8071.6341.1815.315
3.5004.5288.6610.8460.8071.6341.1815.512
3.6254.6068.6610.8460.8071.6341.1815.591
3.7504.7258.6610.8460.8071.6341.1815.709
3.8754.9218.6610.8460.8071.6341.1815.906
4.0004.9218.6610.8460.8071.6341.1815.906



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 of 5/8" Mechanical Seals, meeting various high-specification manufacturing requirements.


5/8" Rotating & Stationary Cartridge Mechanical Seals
5/8" Rotating & Stationary Cartridge Mechanical Seals
5/8" Rotating & Stationary Cartridge Mechanical Seals
5/8" Rotating & Stationary Cartridge Mechanical Seals



Product Research, Development and Testing


Our 5/8" mechanical seals 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


Upgrade in a Textile Factory: A textile factory was using packing on their 5/8" water transfer pumps, resulting in constant leakage and shaft sleeve wear. We replaced them with our 5/8" Mechanical Seals. The pre-set assembly meant their in-house mechanic could install it in minutes. Result: The pump floor is dry, and shaft wear has stopped completely.

Testimonials


We stock these 5/8 cartridges by the dozen. They fit almost every small centrifugal pump we service, and the pre-set clips make installation foolproof.

—David L., MRO Buyer, Canada



FAQs about 5/8" Rotating & Stationary Cartridge Mechanical Seals


Q: Does this replace a standard Type 1 component seal directly?

A: Yes, absolutely. This cartridge is engineered as a direct dimensional upgrade for the Type 1 component seal. It fits into the same standard stuffing box space but eliminates the need for manual setting measurements, sleeve glueing, and spring compression calculations, offering a much higher reliability factor and eliminating installation errors.


Q: Is a 5/8" mechanical seal compatible with my pump?

A: Yes, absolutely. This cartridge is engineered as a direct dimensional upgrade for the Type 1 component seal. It fits into the same standard stuffing box space but eliminates the need for manual setting measurements, sleeve glueing, and spring compression calculations, offering a much higher reliability factor and eliminating installation errors.


Please Contact Us!
Get Started With Your Next Project.
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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