Safematic JCS1-40-QRMO John Crane Cartridge Mechanical Seal for Sulzer Pumps

Safematic JCS1-40-QRMO John Crane Single Cartridge Mechanical Seal for Sulzer Process Pumps

JCS1-40-QRMO

Type JCS1 O-Ring Pusher Seal

Integrated Single Seal for Demanding Conditions

Safeseal JCS1 is a rugged, pump-integrated single seal designed for clean and lubricating fluids such as water, oils, solvents and low-consistency paper stocks. The JCS1 seal is easy to install from the impeller side. JCS1 is advanced in its technical capabilities, including a patented drive mechanism for seal faces and self-aligning, elastically mounted thrust ring.

The JCS1 is originally designed for Sulzer AHLSTARUP pumps and later expanded to cover Andritz process pumps and other equipment.

Features

• Balanced design provides undisturbed operation even with sudden pressure shocks.
• Single spring on atmospheric side located in the stationary part of the seal. Material is corrosion-resistant. Shaft misalignment does not pulsate the spring or wear out the O-ring.
• No measurements required for installation. Easy installation reduces risk of human error.
• Seal installation does not require back plate removal, and the seal is fastened with one bolt which guarantees fast, trouble-free installation.
• Torque transmission with super-elastic devices combined with no drive pins at seals faces. Seal faces do not crack at start-up.

Parameters

• Temperature Limits: up to 194°F/90°C
• Pressure Limits: 225 psi(g)/16 bar(g)
• Speed Limits: 65fps/20m/s

Standard Materials

• Seal faces: SiC/Carbon or SiC/SiC
• O-rings: PTFE, EPDM, Viton
• Metal parts: SS304, SS316
• Springs: SS304, SS316

Recommended Applications

• Process pumps

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