Material Combinations (Optional)
Seal face: Carbon / Silicon Carbide (SiC), Tungsten Carbide / SiC
Elastomers: NBR, EPDM, FKM, AFLAS, FFKM
Springs: SUS316L/AM350/Inconel718
Metal Parts: 2Cr13/SUS316L/4J42/Hastelloy
MOR JCS1A is a heavy‑duty, single‑acting, pusher‑type mechanical seal specifically designed for centrifugal pumps in demanding process industries. It is widely used as a reliable sealing solution for clean and slightly contaminated liquids, offering stable performance, easy installation, and long service life in general industrial and process pump services.
Features
Single‑acting balanced seal design: Reduces face loading, lowers heat generation, and improves stability under pressure.
Compact, robust structure: Suitable for standard stuffing boxes of most centrifugal pumps.
Stationary spring assembly: Springs are protected from process fluid, avoiding clogging, corrosion, and fatigue.
Self-aligning seal faces: Ensures consistent contact and good sealing performance even under minor shaft runout.
Multiple elastomer options: Allows compatibility with various fluids and temperature conditions.
Simple drive mechanism: Transmits torque reliably without risk of face damage.
Shaft-friendly design: Does not damage or score the shaft surface during operation.
Advantages
Excellent reliability for continuous operation in centrifugal pumps
Good resistance to pressure shocks and temperature variations
Easy to install, maintain, and replace
High compatibility with water, oils, chemicals, and process fluids
Long service life and low total cost of ownership
Suitable for retrofit and replacement of standard pump seals
Applications
Water supply and circulation pumps
Cooling water pumps
Petrochemical and chemical process pumps
Boiler feed pumps
General industrial centrifugal pumps
Sewage and slightly contaminated fluid pumps
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