Key Features

• Dual Safety: A tandem or back-to-back arrangement utilizing the robust John crane type 1 drive architecture but upgraded with PTFE wedges for chemical service.

• Heavy Duty Spring: The large non-clogging coil spring of the John crane type 1 mechanical seal ensures reliable operation even in viscous chemical slurries.

• Barrier Fluid Compatible: Designed to work with API Plan 52 or 53 systems to provide lubrication and cooling.

• Self-Aligning: The Type 1's full-convolution design (modified for wedge) retains excellent self-alignment capabilities, handling shaft deflection better than standard wedge seals.

• Custom Gland: Supplied with a custom-machined gland plate to house the dual seal assembly within standard pump dimensions.

Product Specifications

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.

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.

Industry Solutions

FAQs about John crane type 1 mechanical seal

Q: Why modify a Type 1 with a wedge?

A: The John crane type 1 mechanical seal is famous for its non-clogging spring. By adding a PTFE wedge, we combine that mechanical robustness with the chemical resistance needed for harsh solvents.