The Flowserve PSS 4 process seal is a highly reliable split semi cartridge seal featuring proprietary 3D Key face alignment technology. This innovative design simplifies seal installation, significantly reducing downtime and increasing reliability for your pumps and mixers. Its unitized, split construction allows easy installation without equipment disassembly, making it ideal for critical industrial processes.
Flowserve PSS 4 Seal Applications
The Flowserve PSS 4 process seal is designed for diverse industrial applications requiring superior sealing reliability, including:
- Chemical industry: Basic chemicals, specialty chemicals, pharmaceuticals and biofuels.
- Power generation: Nuclear and conventional power plants.
- Oil & gas: Upstream exploration and downstream refining processes.
- Mining & minerals processing: Reliable sealing in abrasive and demanding environments.
- General industrial applications: Pulp & paper, food processing, wastewater treatment and industrial manufacturing facilities.
Benefits of Flowserve PSS 4 Process Seal
Easy and Precise Installation
Flowserve’s exclusive 3D Key alignment technology ensures accurate radial and axial alignment, significantly reducing installation errors and eliminating potential leakage paths.
Improved Reliability
The fully split, semi-cartridge design simplifies maintenance. Seal installation and replacement can be performed quickly, minimizing equipment downtime and enhancing operational reliability.
Exceptional Versatility
Capable of handling pressures from full vacuum up to 30 bar (450 psi), the Flowserve PSS 4 seal supports demanding processes across multiple industries.
Extended Equipment Life
High-quality materials and advanced engineering reduce wear, ensuring prolonged service life and lower overall cost of ownership.
Working Principle of Flowserve PSS 4 Process Seal
The Flowserve PSS 4 seal features a split semi-cartridge design, pre-assembled to facilitate installation around the existing shaft without dismantling equipment. Compressed springs and specialized elastomers maintain continuous sealing pressure on rotating faces, effectively managing high pressure and vacuum conditions. Precise alignment from Flowserve’s patented 3D Key system guarantees reliable sealing integrity and minimal downtime.
Technical Specifications
| Feature | Specification |
|---|
| Pressure Capability | Full vacuum to 30 bar (450 psi) |
| Temperature Range | -18°C to 121°C (0°F to 250°F) |
| Maximum Speed | 19.3 m/s (3800 fpm) |
| Shaft Size Range | 38 mm to 152 mm (1.500″ to 6.000″) |
Standard Design
The Flowserve PSS 4 mechanical seal includes:
- Robust metal components in AISI 316L (standard) stainless steel.
- Split elastomeric seals made from chemically resistant materials (EPDM standard; other materials available on request).
- Easy alignment through proprietary 3D Key alignment mechanism.
- Unitized, split semi-cartridge structure simplifying replacement and maintenance.
Available Options
- Manual handle for easy valve operation
- Seal removal and assembly toolkit
- Customized elastomers and sealing materials (EPDM, FPM, PTFE)
- Advanced proximity switch sensors for position indication (open/closed)
- Customized configurations based on specific process requirements
Comparison: Flowserve PSS 4 vs Conventional Seals
Flowserve PSS 4 Process Seal:
- Quick installation, no equipment disassembly needed
- Proprietary 3D alignment ensures accuracy
- Reduced leakage risks with enhanced reliability
- Lower maintenance costs due to simplified replacement
Traditional Mechanical Seals:
- Require extensive equipment dismantling for installation
- Risk of alignment errors leading to leakage
- Higher operational downtime and costs
Product Flyer
Product Installation Instructions
Product Repair Instructions
Enhance your industrial operations with the Flowserve PSS 4 Process Seal. Built for durability and efficiency, it ensures superior sealing performance. Contact us today!
